Lapointe v. Commissioner of Correction ( 2015 )


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    RICHARD LAPOINTE v. COMMISSIONER
    OF CORRECTION
    (SC 19079)
    Rogers, C. J., and Palmer, Zarella, Eveleigh, McDonald and Espinosa, Js.
    Argued September 17, 2013—officially released March 31, 2015*
    Timothy J. Sugrue, assistant state’s attorney, with
    whom, on the brief, were Kevin T. Kane, chief state’s
    attorney, Jo Anne Sulik, supervisory assistant state’s
    attorney, and Michael E. O’Hare, former senior assis-
    tant state’s attorney, for the appellant (respondent).
    Paul Casteleiro, pro hac vice, with whom was W.
    James Cousins, for the appellee (petitioner).
    Opinion
    PALMER, J. This certified appeal by the respondent,
    the Commissioner of Correction, requires us to decide
    whether the Appellate Court correctly concluded, con-
    trary to the determination of the habeas court, that the
    petitioner, Richard Lapointe, is entitled to a new trial
    on the charges underlying his 1992 conviction of capital
    felony and other offenses because prior habeas counsel
    (first habeas counsel) rendered ineffective assistance
    in failing to demonstrate that the state withheld certain
    exculpatory evidence prior to trial in violation of Brady
    v. Maryland, 
    373 U.S. 83
    , 
    83 S. Ct. 1194
    , 
    10 L. Ed. 2d 215
     (1963), and its progeny, the disclosure of which
    would have supported an alibi defense. We agree with
    the petitioner both that he was deprived of a fair trial
    because his rights under Brady were violated and that
    his first habeas counsel’s representation was constitu-
    tionally deficient in that counsel failed to establish that
    violation. We therefore affirm the judgment of the
    Appellate Court.
    The respondent’s appeal arises out of events that
    have their origin in the early evening hours of Sunday,
    March 8, 1987, when the victim, eighty-eight year old
    Bernice Martin, was raped, bound and murdered in her
    Manchester apartment, which her killer thereafter set
    ablaze in an apparent effort to destroy all evidence of
    the crime. The case remained unsolved until early 1989,
    when police focused their suspicions on the petitioner,
    the then forty-two year old mentally impaired husband
    of the victim’s granddaughter, Karen Martin (Martin),
    with whom the petitioner resided along with their eight
    year old son. Until then, the petitioner was not a suspect:
    he had no criminal record or history of violence of any
    kind, and he seemed physically, mentally and tempera-
    mentally incapable of the brutal crime. Nevertheless, on
    July 4, 1989, over the course of a nine hour stationhouse
    interrogation by the Manchester police that lasted until
    the early morning hours of July 5, the petitioner gave
    three written statements in which he purported to take
    responsibility for the victim’s murder. The petitioner
    repeatedly told the police, however, that he had no
    recollection of killing the victim and that he was con-
    fessing only because they wanted him to do so.
    On the basis of these statements, the police obtained
    a warrant for the petitioner’s arrest, and he ultimately
    was charged with capital felony and arson murder,
    among other offenses. Following a jury trial, he was
    convicted as charged1 and sentenced to life imprison-
    ment without the possibility of release.2 After this court
    affirmed his conviction; State v. Lapointe, 
    237 Conn. 694
    , 739, 
    678 A.2d 942
    , cert. denied, 
    519 U.S. 994
    , 
    117 S. Ct. 484
    , 
    136 L. Ed. 2d 378
     (1996); the petitioner sought
    a writ of habeas corpus, claiming, inter alia, that his
    due process rights were violated because the state had
    failed to disclose a note, authored by Detective Michael
    Ludlow of the Manchester Police Department (Ludlow
    note), containing details concerning the length of time
    that the fire burned inside the victim’s apartment prior
    to being discovered. The petitioner claimed that the
    note was both exculpatory and material under Brady3
    because it purported to identify the time frame within
    which the fire was set, and Martin would testify that
    the petitioner was home, with her and their son, during
    that entire period, thereby providing the petitioner with
    a complete alibi. First habeas counsel, however, failed
    to pursue the claim, and, consequently, the first habeas
    court, Freed, J., rejected that claim as abandoned, as
    well as the petitioner’s other claims on the merits. On
    appeal, the Appellate Court affirmed the judgment of
    the first habeas court. Lapointe v. Commissioner of
    Correction, 
    67 Conn. App. 674
    , 681, 
    789 A.2d 491
    , cert.
    denied, 
    259 Conn. 932
    , 
    793 A.2d 1084
     (2002).
    The petitioner subsequently filed the habeas petition
    that is the subject of this appeal, alleging, inter alia,
    that the state’s failure to disclose the Ludlow note
    deprived him of due process of law and that his first
    habeas counsel had rendered ineffective assistance
    under Strickland v. Washington, 
    466 U.S. 668
    , 
    104 S. Ct. 2052
    , 
    80 L. Ed. 2d 674
     (1984),4 by failing to pursue
    and prove that claim. The second habeas court, Fuger,
    J., dismissed the claim, concluding, inter alia, that the
    petitioner had not established a prima facie basis for
    the exculpatory nature of the Ludlow note because,
    despite its existence, he could not account for his
    whereabouts for the entire window of time within which
    the victim was murdered. The petitioner appealed to
    the Appellate Court, which reversed in part the second
    habeas court’s judgment and remanded the case for
    further proceedings. Lapointe v. Commissioner of Cor-
    rection, 
    113 Conn. App. 378
    , 404, 
    966 A.2d 780
     (2009).
    The Appellate Court’s decision was predicated on its
    determination that the Ludlow note, when viewed in
    the light most favorable to the petitioner and considered
    together with certain statements from Martin as to when
    the petitioner was home with her, was exculpatory
    because it tended to support a finding that he could
    not have committed the crime in the requisite time
    frame. See id., 392.
    At the proceeding following the Appellate Court’s
    remand of the case to the habeas court, the sole issue
    with respect to the Ludlow note was whether it was
    material. In support of his claim that the note was mate-
    rial, the petitioner presented expert testimony concern-
    ing the length of time the fire burned in the victim’s
    apartment. Based on the burn time estimates of the
    petitioner’s two experts, which were consistent with
    the notation that had been made in the Ludlow note,
    the fire was set in a relatively narrow window of time.
    The petitioner also presented evidence establishing
    that, if the state had disclosed the Ludlow note as
    required, his trial counsel would have called Martin as
    a witness, and Martin would have testified that the
    petitioner was home with her during the time frame
    within which, according to the petitioner’s burn time
    experts, the fire was set. The respondent also presented
    expert testimony concerning the likely burn time of the
    fire. Under the far longer burn time estimate proffered
    by the respondent’s expert, the petitioner could not
    establish, even with Martin’s testimony, that he was
    home during that entire period. At the conclusion of
    the trial, the third habeas court, Nazzaro, J., rejected
    the petitioner’s claim that his first habeas counsel was
    ineffective for failing to pursue a Brady claim on the
    basis of the state’s nondisclosure of the Ludlow note.
    In particular, the third habeas court found that the testi-
    mony of the respondent’s expert was far more persua-
    sive than the testimony of the petitioner’s experts and
    that it was not reasonably probable that, if the jury at
    the petitioner’s criminal trial had heard the testimony
    of the petitioner’s experts, it would have credited that
    testimony and reached a different result.
    On appeal to the Appellate Court from the judgment
    of the third habeas court, the petitioner argued, inter
    alia, that, contrary to the finding of the third habeas
    court, he is entitled to a new criminal trial at which the
    jury would decide how much weight to assign to the
    testimony of the petitioner’s experts. The Appellate
    Court agreed, concluding that the determination of
    which expert or experts were most persuasive was an
    issue to be decided by the jury at a new trial. See
    Lapointe v. Commissioner of Correction, 
    138 Conn. App. 454
    , 476–77 and n.17, 
    53 A.3d 257
     (2012). Accord-
    ingly, the Appellate Court reversed in part5 the judgment
    of the third habeas court and remanded the case with
    direction to grant the petition for a writ of habeas cor-
    pus and for a new trial. Id., 480.
    We then granted the respondent’s petition for certifi-
    cation to appeal, limited to the following issue: ‘‘Did
    the Appellate Court properly determine that the [peti-
    tioner’s] first habeas counsel was ineffective for failing
    to pursue a claim that the state had suppressed evidence
    in violation of Brady v. Maryland, 
    [supra,
     
    373 U.S. 83
    ]?’’
    Lapointe v. Commissioner of Correction, 
    307 Conn. 940
    , 941, 
    56 A.3d 948
     (2012). We answer the certified
    question in the affirmative because the testimony of
    the petitioner’s experts was more than sufficient to call
    into question the reliability of the petitioner’s convic-
    tion. Indeed, even if that expert testimony only tended
    to support the petitioner’s claim that he could not have
    murdered the victim, in view of the tenuous nature of
    the state’s case against the petitioner—based as it was
    on his suspect admissions—the state’s Brady violation
    would warrant a new trial because, as the United States
    Supreme Court has recognized, exculpatory evidence
    of even ‘‘minor importance’’ may well be ‘‘sufficient to
    create a reasonable doubt’’ when, as in the present case,
    ‘‘the [guilty] verdict is already of questionable validity
    . . . .’’ United States v. Agurs, 
    427 U.S. 97
    , 113, 
    96 S. Ct. 2392
    , 
    49 L. Ed. 2d 342
     (1976). Accordingly, we affirm
    the judgment of the Appellate Court reversing in part
    the judgment of the third habeas court and ordering a
    new trial.
    I
    FACTS AND PROCEDURAL HISTORY
    Our resolution of the issue presented by this appeal
    requires an extended discussion of the long and vexing
    history of the petitioner’s case.6 At all times relevant
    to this appeal, the petitioner, his wife, Martin, and their
    son resided in the town of Manchester, within walking
    distance of the apartment of the victim, whom they
    visited every Sunday. On Sunday, March 8, 1987, the
    family followed their usual routine, attending church
    in the morning and then stopping for breakfast at My
    Brother’s Place, a nearby restaurant where the peti-
    tioner was employed. When the restaurant closed at
    2 p.m., they walked across the street to the victim’s
    apartment, where they stayed for approximately two
    hours, watching television with the victim. At about 4
    p.m., the petitioner and Martin, neither of whom had a
    driver’s license, and their son took the ten minute walk
    home. After they arrived home, Martin, who has cere-
    bral palsy and is slightly paralyzed, prepared dinner,
    and the petitioner, who has certain physical and mental
    impairments as the result of Dandy-Walker syndrome,7
    took the family dog out for a walk. The petitioner was
    gone for around twenty minutes. Upon his return, at
    approximately 5 or 5:15 p.m., the family sat down for
    dinner.
    At or about 5:45 p.m., the victim’s daughter, Nathalie
    Howard, and her husband drove past the victim’s apart-
    ment and saw the victim outside emptying her trash.
    At the time, the victim appeared fine, and the couple
    continued on their way. At approximately 7:55 p.m.,
    Howard called the victim to check on her, as she did
    every evening, but the victim did not answer her tele-
    phone. Howard tried calling again at 8:05 p.m. When
    the victim still did not answer, Howard called her niece,
    Martin, to inquire whether Martin’s father, who resided
    in New York, had come to visit the victim and had taken
    her out to dinner. When Martin told Howard that her
    father was not in town that day, Howard asked if the
    petitioner would walk over to the victim’s apartment
    to make sure that nothing was wrong. Howard also
    requested that the petitioner call her as soon as he
    got to the victim’s apartment to let Howard know that
    everything was alright.
    According to Howard, the petitioner called her right
    back from the home of Jeannette King, the victim’s
    neighbor. He told Howard that the doors to the victim’s
    apartment were locked and that the victim must be
    sleeping because there were no lights on inside the
    apartment. Howard told the petitioner that the victim
    never went to bed at that hour and that she was heading
    right over to the victim’s apartment. The petitioner also
    called Martin, who told him to go back to the victim’s
    apartment immediately and to try to get inside because
    the victim might have fallen and injured herself. A few
    minutes later, the petitioner returned, out of breath, to
    King’s apartment and told her that there was smoke
    coming from the victim’s apartment. The petitioner
    dialed 911 from King’s apartment at 8:27 p.m.
    The first firefighter on the scene, Michael Tomkunas,
    who was off duty and arrived within moments of the
    911 call, saw the petitioner standing in front of the
    building, motioning him in the direction of the victim’s
    apartment. Tomkunas could see smoke coming from
    the apartment, and the front door was hot to the touch.
    Tomkunas immediately kicked in the front door and
    tried to enter the apartment, but the smoke and heat
    were too intense, and he was forced out. By then, other
    firefighters were arriving on the scene. One of them,
    Douglas Boland, ran to the back of the building and
    opened a set of sliding glass doors. The cross-ventilation
    dissipated enough of the smoke and heat to allow the
    firefighters to enter. When they did, they discovered
    the victim lying on the living room floor, six to eight
    feet from the burning couch. She was naked except for
    two pieces of fabric, one of which was tied so tightly
    around her neck that Tomkunas had trouble removing
    it; the other piece bound her hands and midsection.
    The firefighters carried the victim to the front lawn and
    performed cardiopulmonary resuscitation until para-
    medics arrived. Howard arrived just as rescue person-
    nel were carrying her mother from the building. The
    drive from her home had taken approximately ten
    minutes. The victim subsequently was transported to
    Manchester Memorial Hospital, where she was pro-
    nounced dead.
    The associate medical examiner, Arkady Katsnelson,
    performed an autopsy on the victim and determined
    that her cause of death was a combination of asphyxia
    by strangulation and smoke inhalation. He concluded
    that the victim was not manually strangled but was
    asphyxiated by pressure to the right side of her neck
    from a blunt object. The victim also suffered a three
    inch stab wound to her abdomen, ten less severe stab
    wounds to her back, extensive hemorrhaging and contu-
    sions and lacerations to the vaginal area, as well as first
    and second degree burns to various parts of her body.
    Katsnelson opined that the contusions and lacerations
    to the vaginal area were caused by a blunt object rather
    than by sexual intercourse.
    The police recovered several items of potential evi-
    dentiary value from the victim’s apartment, including
    a pair of men’s gloves containing strands of the victim’s
    hair and a semen stain from the bedspread belonging
    to a person with type A blood who also was a secretor.8
    The petitioner is a secretor with type A blood, as is
    approximately one third of the male population.9 The
    police also recovered a pubic hair from the victim’s
    clothing, but DNA tests were not then available.10 But-
    tons from the victim’s blouse were found strewn about
    the bedroom floor, indicating that the perpetrator had
    forcibly removed the victim’s clothing. The police also
    found a pool of the victim’s blood on top of the bed,
    indicating that she was stabbed in that location.
    The police investigation into the victim’s homicide
    remained open for more than two years. In March, 1989,
    the case was reassigned to Detective Paul Lombardo
    of the Manchester Police Department.11 At that time,
    Lombardo decided to reinterview individuals who pre-
    viously had been questioned by the police. On June 8,
    1989, Lombardo interviewed the petitioner and took a
    saliva sample from him.
    On July 4, 1989, Lombardo asked the petitioner to
    come to the police station for questioning. By that time,
    Lombardo had become convinced of the petitioner’s
    guilt because of his blood type, his peculiar nature and
    mannerisms, and his repeated questions to the police
    about whether he was a suspect in the victim’s murder.
    According to Joseph J. Brooks, Lombardo’s command-
    ing officer, the purpose of the interview was to elicit
    a confession from the petitioner. When the petitioner
    arrived at the police station, Lombardo informed him
    that there was incontrovertible evidence of his guilt.
    Although the petitioner initially denied any involvement
    in the victim’s murder, after Lombardo told him that a
    person could commit a crime and not remember doing
    so, the petitioner signed two statements in which he
    acknowledged his involvement in the murder. In the
    first, one sentence statement, the petitioner purported
    to accept responsibility for the victim’s death, but stated
    only that ‘‘it was an accident, my mind went blank.’’ In
    the second statement, the petitioner stated that he had
    no memory of killing the victim but that, if the evidence
    showed that he was there and that he killed her, then
    he must be guilty. Because the first two statements
    were devoid of any detail corroborating the petitioner’s
    equivocal admission that he had killed the victim, Lom-
    bardo asked another Manchester police officer involved
    in the investigation, Detective Michael Morrissey, to
    take over the interrogation and to try to obtain more
    specific information from the petitioner. Several hours
    later, under questioning by Morrissey, the petitioner
    signed a third statement that was largely inconsistent
    with the crime scene evidence12 but that also contained
    three details about the crime that, presumably, would
    have been known only to the police and the killer.13
    After signing the third statement, the petitioner was
    told to go home. Before leaving the station at 1:30 a.m.
    on July 5, however, the petitioner spoke to Brooks
    and again expressed uncertainty about his role in the
    victim’s murder. Brooks asked him why he had he
    signed the three statements confessing to the murder.
    The petitioner responded that he simply had repeated
    what the officers had told him to say.
    At the petitioner’s criminal trial, the petitioner’s coun-
    sel presented evidence to demonstrate that the peti-
    tioner was physically, mentally and emotionally inca-
    pable of committing, much less concealing, such a bru-
    tal and cold-blooded murder, as evidenced by the testi-
    mony of numerous psychologists and other witnesses
    who had known the petitioner at various stages in his
    life, including childhood friends, employers, fellow
    parishioners, and other members of the community.
    According to these witnesses, the petitioner’s cognitive
    and motor skills are impaired, apparently the result of
    Dandy-Walker syndrome, and, as a consequence, he is
    slow-witted, easily confused, child-like and gullible—
    his mother-in-law described him as having the mentality
    of an eight year old—as well as physically awkward
    and uncoordinated. In addition, the petitioner was
    extremely close to the victim and her family, and he
    had no conceivable reason or motive to harm her, let
    alone to sexually assault and kill her. With respect to
    the petitioner’s admissions, counsel argued that they
    were the product of a highly manipulative interrogation
    of an extremely vulnerable and impaired man, who had
    spent his entire life accommodating and agreeing with
    others in an effort to gain favor and to avoid conflict.
    Focusing principally on the petitioner’s third incrimi-
    nating statement, the state argued that the statement
    was freely given, and that it was powerful evidence of
    guilt because it contained information about the murder
    that only the killer would know. The state also argued
    that the petitioner was not nearly as compromised intel-
    lectually as defense witnesses had made him out to be
    because he had an intelligence quotient (IQ) of 92,
    which, the state asserted, was ‘‘nowhere close to being
    [even] slightly retarded.’’ The state also emphasized that
    the petitioner’s blood type and secretor status were
    consistent with the seminal stain on the victim’s bed-
    spread. Finally, the state referred to certain conduct
    by the petitioner in the days and weeks following the
    murder that, in the state’s view, suggested that the peti-
    tioner was the murderer: on several occasions, the peti-
    tioner had asked the police whether he was a suspect
    in the crime; he had told a neighbor that the victim was
    sexually assaulted before that information was known
    publically; and, on the night of the murder, he had gone
    to King’s front door to ask to use her telephone, even
    though the back door was closer to the victim’s apart-
    ment.14 On June 30, 1992, a jury found the petitioner
    guilty of all charges, and, after a penalty phase hearing,
    the trial court sentenced him to a term of life imprison-
    ment without the possibility of release.
    On direct appeal to this court, the petitioner claimed,
    inter alia, that the trial court improperly had denied his
    motion to suppress the oral and written statements that
    he had given to the police on July 4 and 5, 1989,15 and
    improperly concluded that the state constitution did
    not require the police to record his confession electroni-
    cally. See State v. Lapointe, surpa, 
    237 Conn. 696
    . We
    rejected those claims and affirmed the petitioner’s con-
    viction.16 
    Id., 703, 735, 739
    . Thereafter, on May 30, 1997,
    the petitioner filed his first writ of habeas corpus, alleg-
    ing, inter alia, prosecutorial impropriety predicated on
    the state’s failure to disclose certain exculpatory evi-
    dence, including the Ludlow note. At the first habeas
    trial, however, first habeas counsel presented no evi-
    dence to support a claim that the state had suppressed
    the Ludlow note, and, therefore, the first habeas court
    deemed the claim abandoned. The first habeas court
    rejected the petitioner’s other claims,17 and the peti-
    tioner appealed to the Appellate Court, which affirmed
    the judgment of the first habeas court. Lapointe v. Com-
    missioner of Correction, 
    supra,
     
    67 Conn. App. 681
    .
    On August 2, 2002, the petitioner filed a second
    habeas petition, alleging, inter alia, that his first habeas
    counsel rendered ineffective assistance by failing to
    pursue a claim that the state improperly had suppressed
    the Ludlow note. The following relevant facts relating
    to the Ludlow note are set forth in the decision of
    the Appellate Court in Lapointe v. Commissioner of
    Correction, 
    supra,
     
    138 Conn. App. 454
    . ‘‘At the time of
    the victim’s homicide, Ludlow was . . . assigned as the
    evidence officer for the crime scene. He subsequently
    assumed the position of case officer, which meant that
    he was responsible for the entire criminal investigation.
    A few days after the homicide, Ludlow had conversa-
    tions with two state fire marshals who were assisting
    with the investigation. Ludlow took notes and wrote
    ‘CSP,’ which stood for Connecticut State Police, and
    ‘Steve Igoe’ and ‘Joe Roy,’ the names of the state fire
    marshals. Underneath those notations [in] the Ludlow
    note, the words ‘30–40 mins. Poss.’ were written. The
    numbers ‘30’ and ‘40’ were underscored twice. Ludlow
    testified that the notation ‘[P]oss.’ meant ‘possible’ and
    that the times represented the minimum amount of time
    that the fire could have been burning before the first
    responding firefighters arrived at the victim’s apart-
    ment. At the time of the second habeas trial, Ludlow
    stated that he could not remember who gave him the
    burn time information. He admitted, however, that he
    was not an expert on fires and that he would not have
    made that estimate on his own. He testified that he
    would have asked one of the experts for the burn time
    if he was trying to determine a window of time within
    which the fire could have been started. Ludlow also
    acknowledged that, at the time of the first habeas pro-
    ceeding, he testified that he had obtained the informa-
    tion as to a possible burn time from either Igoe or Roy.
    ‘‘The Ludlow note was first disclosed to [the petition-
    er’s] counsel in 1999, after the petition for [a writ of]
    habeas corpus had been filed in the first habeas action.
    [The petitioner’s trial counsel, Patrick] Culligan and
    [Christopher] Cosgrove both testified that they had not
    seen the Ludlow note prior to the petitioner’s criminal
    trial in 1992. . . . [A]fter receiving the Ludlow note
    and other materials, [first habeas counsel] amended the
    petition to allege the state’s failure to disclose or to
    produce the Ludlow note as Brady material, as required
    by the [federal and state] constitutions . . . . He did
    not, however, pursue that issue during the first habeas
    trial. The first habeas court, in its memorandum of
    decision, did not address the claim regarding the Lud-
    low note because it deemed that claim to [be] aban-
    doned.
    ‘‘[The petitioner alleged in a second habeas proceed-
    ing that his first habeas counsel’s] failure to pursue the
    claim that the state suppressed the Ludlow note was
    . . . ineffective assistance of counsel . . . . During
    the second habeas trial, [the petitioner’s first habeas
    counsel] testified that he had not pursued that claim
    because he did not believe [that] the notation as to burn
    time in the Ludlow note [was] exculpatory. Culligan
    and Cosgrove, in their testimony before the second
    habeas court, opined that the Ludlow note was exculpa-
    tory and that the information could have been used by
    [them] at the criminal trial to buttress the petitioner’s
    alibi defense. Culligan and Cosgrove further testified
    that if the Ludlow note had been disclosed to [them]
    prior to the [petitioner’s criminal] trial, their strategy
    would have changed.
    ‘‘[Martin] was not called as a witness in the petition-
    er’s criminal trial. Culligan stated that Martin and the
    petitioner were divorced by that time and that the work-
    ing relationship between her and the defense was no
    longer a good one. Although [Culligan] discovered prior
    to trial that [Detective] Morrissey had interviewed [Mar-
    tin] on July 4, 1989, and that she had expressed her
    support for the petitioner at that time, and although
    [Culligan] knew that [Martin] had testified at the sup-
    pression hearing that the only time the petitioner was
    out of her sight on the night of the homicide was when
    she bathed their son between 6:15 [or 6:30] p.m. and 7
    p.m., Culligan decided not to compel her testimony.
    He testified that he was concerned about her attitude
    toward the petitioner. Further, he was unaware of the
    existence of the Ludlow note and the importance of
    the start time of the fire to support the petitioner’s alibi
    defense. Culligan testified that, if he had known that
    Igoe, the state’s fire expert, gave a burn time of thirty
    to forty minutes, he would have called [Martin] as a
    witness because her testimony would have established
    that the petitioner was home when the fire was set. He
    also [testified] that [if] he . . . had . . . known of the
    information in the Ludlow note [he would have been
    prompted to hire an expert to testify about the fire’s
    burn time for the purpose of demonstrating that the
    petitioner could not have started the fire because he
    was home when it was set].’’18 (Footnotes omitted.)
    
    Id.,
     468–71.
    At the close of the petitioner’s evidence at the second
    habeas trial, the respondent moved to dismiss the peti-
    tion on the ground that the petitioner had failed to make
    out a prima facie case with respect to any of his claims.
    On August 2, 2007, the second habeas court granted
    the motion, concluding, with respect to the petitioner’s
    claim predicated on the nondisclosure of the Ludlow
    note, that the note was not exculpatory. The court rea-
    soned that, although the note arguably supported a find-
    ing that the minimum burn time was thirty to forty
    minutes—a period of time for which the petitioner
    could account for his whereabouts through Martin’s
    testimony—the note said nothing about the maximum
    possible burn time, and the petitioner could not estab-
    lish his whereabouts for a longer time period.
    The petitioner appealed from the judgment of the
    second habeas court to the Appellate Court, which
    reversed in part the second habeas court’s judgment as
    it related to the Ludlow note and remanded the case
    for further proceedings. Lapointe v. Commissioner of
    Correction, 
    supra,
     
    113 Conn. App. 404
    . In reversing
    that portion of the second habeas court’s judgment
    pertaining to the Ludlow note, the Appellate Court
    observed that ‘‘the record reveals . . . that the victim
    was last seen outside of her apartment by Howard at
    about 5:45 p.m. The petitioner’s former wife, [Martin],
    testified at a suppression hearing that she prepared
    dinner at the petitioner’s home and that they ate dinner
    at about 5:15 p.m. or 5:30 p.m. Prior to sitting down for
    dinner, the petitioner . . . walked the family dog for
    approximately twenty minutes. Therefore, according to
    her testimony, the petitioner had returned from his walk
    before the time that the victim was last seen outside
    of her apartment. . . . Martin . . . further testified
    that [the petitioner] did not leave their house again
    until she received a telephone call from Howard, who
    requested that the petitioner walk over to the victim’s
    house to check on [the victim]. According to Howard,
    this telephone call was placed a little after 8 p.m.’’ Id.,
    391. The Appellate Court further noted that, although
    the state had adduced testimony from Martin acknowl-
    edging that the petitioner was out of her sight from
    approximately 6:15 or 6:30 p.m. until 7 p.m., when she
    was upstairs bathing their son, Martin also testified that,
    ‘‘while she was upstairs, it was possible to hear someone
    downstairs’’; id.; and, in addition, that, from 7 p.m. until
    the time the petitioner left to check on the victim, she
    and the petitioner were watching television with their
    son. See id., 391–92.
    Viewing this evidence in the light most favorable to
    the petitioner,19 the Appellate Court concluded that ‘‘the
    thirty to forty minute minimum burn time, if credited
    as an accurate estimation, establishes that the fire was
    set at or before 7:50 p.m. The petitioner submitted evi-
    dence that, if credited, can account for his whereabouts,
    albeit tenuously, for the full window of time encom-
    passing the last time the victim was seen alive outside
    her apartment to the time her body was discovered.
    Evidence that tends to prove his temporal inability to
    have committed the crime satisfies the definition of
    exculpatory and, therefore, is sufficient to establish the
    first prima facie element of a Brady claim.’’20 Id., 392.
    On remand, the case was assigned to the third habeas
    court, Nazzaro, J.,21 and the case proceeded to trial.
    At trial, the petitioner sought to demonstrate the materi-
    ality of the expert burn time testimony that the petition-
    er’s trial counsel, Culligan and Cosgrove, would have
    presented, along with the testimony of Martin, to estab-
    lish an alibi defense, if the state had timely disclosed
    the Ludlow note. In support of this claim, the petitioner
    presented the testimony of two fire experts, Gerard
    Kelder, Jr., and John DeHaan;22 the respondent pre-
    sented expert fire testimony from Robert Corry for the
    purpose of rebutting the testimony of DeHaan and
    Kelder. All three experts had been provided with the
    same materials to review in connection with their inves-
    tigations, including photographs of the damage to the
    victim’s apartment caused by the fire, blueprints of the
    victim’s apartment, the trial testimony of firefighters
    who responded to the fire, the state fire marshal’s report
    on the fire, a video-recorded narration depicting the
    aftermath of the fire, and the other experts’ reports on
    the fire. All three experts were highly experienced fire
    investigators. A review of their testimony reveals, more-
    over, that they all agreed that the fire began on the
    living room couch, that it burned intensely for a short
    period of time, and that it was quickly extinguished or
    reduced to a smoldering fire due to decreasing levels
    of oxygen in the victim’s small, relatively airtight apart-
    ment. The principal distinction between the testimony
    of DeHaan and Kelder, on the one hand, and Corry, on
    the other, concerned the fire’s maximum burn time.
    Primarily on the basis of the smoke and fire damage
    to the apartment, Kelder concluded that the fire burned
    for approximately forty-five minutes to one hour. Under
    this estimate, the fire was set no earlier than 7:30 p.m.
    Because Martin could account for the petitioner’s
    whereabouts from at least 7 p.m. until he left his house
    to check on the victim, Kelder’s testimony, together
    with Martin’s testimony, established that the petitioner
    was not at the victim’s home when she was sexually
    assaulted and killed.
    DeHaan’s testimony also supported the petitioner’s
    alibi. In his view, in light of the smoke and heat condi-
    tions that Tomkunas had encountered when he arrived
    on the scene, the fire could have been set as late as 8
    p.m. or 8:05 p.m. He further concluded, however, on
    the basis of the damage to the apartment and the dynam-
    ics of the fire, that it was set no earlier than 7:30 p.m.
    Like Kelder’s estimate, DeHaan’s burn time estimate
    was favorable to the petitioner because Martin could
    account for the petitioner’s whereabouts from 7:30 p.m.
    until 8:05 p.m.
    Corry thereafter testified that the fire could have been
    set anytime from 5:45 p.m., when the victim was last
    seen alive, until she failed to answer her telephone at
    around 8 p.m. Under this estimate of the fire’s possible
    burn time, Martin did not provide the petitioner with a
    complete alibi because she could not positively account
    for the petitioner’s whereabouts from 6:15 or 6:30 p.m.
    until 7 p.m.—when she was upstairs getting her son
    ready for bed—a time period within which, according
    to Corry, the fire could have been set.
    On direct examination, Corry also was asked whether
    he had been present in the courtroom for DeHaan’s
    testimony, two months earlier, and, if so, whether he
    agreed with DeHaan’s conclusions regarding the fire.
    Corry responded that he had been present for DeHaan’s
    testimony and that he disagreed with several of
    DeHaan’s findings. In particular, Corry characterized
    DeHaan as having testified that the fire was a ‘‘high
    energy’’ fire. Corry then explained that, if the fire actu-
    ally had been a high energy fire, there would have been
    more damage to the apartment. Specifically, Corry
    stated that a high energy fire ‘‘would have destroyed
    the wall behind [the couch], it would have destroyed
    the ceiling over it, and it would have probably brought
    this room to flash over.’’ When asked what may have
    caused DeHaan to overestimate the fire’s energy level,
    Corry opined that DeHaan likely did not consider the
    probability that there was some kind of object, possibly
    a blanket, on the couch, which is where the fire began,
    and that the blanket or other object had interfered with
    and retarded the spread and intensity of the fire. Corry
    also characterized DeHaan as having testified that the
    apartment was 400 degrees23 at floor level when Tomku-
    nas and the other firefighters entered the apartment.24
    Corry disagreed with this testimony, as well, explaining
    that, if the temperature had been 400 degrees, as
    DeHaan stated, all of the firefighters would have been
    burned. According to Corry, the fact that they were not
    burned indicated that the entry level temperature was
    considerably lower than DeHaan had believed, which,
    in turn, indicated that the fire must have been started
    earlier than DeHaan had indicated because, by the time
    the firefighters entered the apartment, it had cooled to
    the point that it was safe for them to do so.
    Following the trial, the third habeas court issued a
    memorandum of decision in which it rejected the peti-
    tioner’s claim that the petitioner’s first habeas counsel
    provided ineffective assistance by failing to pursue, as
    a claim in the first habeas proceeding, the state’s sup-
    pression of the Ludlow note. For purposes of its analy-
    sis, the third habeas court treated the Ludlow note as
    ‘‘potentially exculpatory’’ and assumed that the state
    had inadvertently failed to disclose the note.25 The third
    habeas court concluded, however, that the note did not
    support the petitioner’s alibi defense and, therefore,
    that the note was not material. In reaching its determi-
    nation, the third habeas court concluded that Corry’s
    burn time estimate, which did not support the petition-
    er’s alibi defense, was more persuasive than the esti-
    mates that DeHaan and Kelder had provided. In support
    of this finding, the third habeas court made several
    subordinate findings. With respect to DeHaan, the third
    habeas court found that Corry had convincingly refuted
    DeHaan’s testimony that (1) the fire was a high energy
    fire, (2) the fire’s ‘‘peak temperature’’ reached 400
    degrees,26 and (3) the temperature inside the apartment
    was 400 degrees when firefighters entered.
    With respect to the latter finding, the third habeas
    court stated: ‘‘The fact that Tomkunas was not burned
    contradicts any opinion that the temperature was 400
    degrees. At 400 degrees, Corry cogently explained, one
    would expect Tomkunas to suffer injury to the back of
    his neck and his hands at a minimum. In addition, the
    photographs of the fire damage, or lack thereof, [to]
    materials in the apartment . . . do not support . . .
    DeHaan’s testimony that temperatures reached 400
    degrees.’’ The third habeas court further noted that
    Corry had ‘‘also criticized the validity of . . . DeHaan’s
    opinions regarding temperatures as not taking into
    account the material in the room [that] helped to slow
    the fire’s burning, such as a blanket and poly foam
    cushions on the couch, [which was] thought to be one
    of three . . . points of origin [of the fire].’’ Finally, the
    third habeas court found that Corry also had convinc-
    ingly refuted Kelder’s testimony that (1) the fire was a
    high energy fire, and (2) the fire’s peak temperature
    reached 1800 degrees at ceiling level.27
    In light of these findings, the third habeas court
    stated: ‘‘Considerable and extensive testimony by arson
    experts/investigators was presented by both the peti-
    tioner and the respondent in their efforts to determine
    the burn time.’’ This ‘‘testimony amount[ed] to a contest
    among experts . . . . [Nevertheless] [t]he court, as the
    finder of fact in this proceeding, assigns far more credit
    or weight to the testimony of . . . Corry . . . than
    [that of] . . . Kelder or . . . DeHaan regarding esti-
    mation of the burn time.’’ The third habeas court also
    observed that ‘‘[w]hat is clear from all the evidence in
    the record, the original trial testimony, crime scene
    photographs, reports, and the expert testimony pre-
    sented to [the] court on the fire, is that the precise time
    the fire was set cannot be determined. At best, a range
    is established that includes that time period of [6:15 to
    7 p.m.] . . . when . . . Martin cannot account for the
    petitioner’s whereabouts, and [this] does not provide
    an alibi for him.’’ With respect to this point, the court
    further explained that, because Martin was upstairs giv-
    ing her son a bath from 6:15 to 7 p.m., she could not have
    known whether the petitioner was at home, downstairs,
    during that time frame, and, consequently, her testi-
    mony, standing alone, did not provide ‘‘the petitioner
    with anything that remotely amounts to an alibi’’ for
    that forty-five minute period.
    The third habeas court concluded that, ‘‘[g]iven all
    of the foregoing, the court simply cannot conclude that
    the nondisclosure of the Ludlow note, assuming it is
    potentially exculpatory and was inadvertently not dis-
    closed by the state, supported the petitioner’s ‘alibi’
    defense. The inability to precisely determine the start
    time of the fire, coupled with . . . Martin’s testimony
    that she [could not] account for the petitioner’s where-
    abouts from [6:15 to 7] p.m., leads [the] court to con-
    clude that the petitioner has failed to [satisfy] both
    the third prong of Brady28 and the second Strickland
    prong.29 That is, the petitioner has failed to show how
    the Ludlow note and the ‘30–40 min [P]oss’ reference,
    if disclosed to [the petitioner’s trial] counsel, reasonably
    would have led the jury to conclude [that] there was
    reasonable doubt in light of all the evidence presented
    to the jury.30
    ‘‘Accordingly . . . the court concludes that the peti-
    tioner has failed to show that [his first habeas counsel]
    rendered ineffective assistance of counsel . . . . The
    court is unable to conclude that [first habeas counsel’s]
    failure to have an arson/fire expert testify in the first
    habeas [proceeding] would have resulted in anything
    different [from the present] habeas [case]: a prototypi-
    cal battle of the experts resulting in diverging opinions.
    . . . [T]he court finds more persuasive the testimony
    presented by the [respondent’s expert, Corry], rather
    than either of the petitioner’s two experts, [Kelder] and
    . . . DeHaan.’’ (Footnote added.)
    The petitioner appealed from the judgment of the
    third habeas court to the Appellate Court, claiming,
    inter alia, that the third habeas court incorrectly con-
    cluded that the petitioner’s evidence regarding the fire’s
    burn time was not material and, consequently, that the
    petitioner’s first habeas counsel did not render ineffec-
    tive assistance in failing to pursue the claim that the
    state’s suppression of the Ludlow note deprived the
    petitioner of a fair trial. Lapointe v. Commissioner of
    Correction, 
    supra,
     
    138 Conn. App. 468
    . The Appellate
    Court agreed with the petitioner. See 
    id.,
     476–80. After
    setting forth the legal principles and standard of review
    that govern claims under Strickland and Brady; 
    id.,
    474–76; see also footnotes 3 and 4 of this opinion; the
    Appellate Court stated in relevant part: ‘‘[T]he state’s
    suppression of the Ludlow note, and [first habeas coun-
    sel’s] failure to pursue that claim, warrants a new trial
    for the petitioner. [The court] reach[es] that conclusion
    for the following reasons. Culligan and Cosgrove testi-
    fied that had the burn time information in the Ludlow
    note been disclosed prior to the petitioner’s criminal
    trial, their trial strategy would have changed. They
    stated that they would have used the thirty to forty
    minute estimate to buttress the petitioner’s alibi
    defense, particularly because the estimate came from
    one of the state’s fire marshals assigned to the investiga-
    tion. As Culligan testified, [he and Cosgrove] would
    have retained the services of an arson expert. At the
    . . . habeas trial, the two experts called by the peti-
    tioner testified that the fire could not have been set
    any earlier than 7:30 p.m. If that testimony had been
    presented at the [petitioner’s] criminal trial, and cred-
    ited by the jury, the petitioner’s whereabouts at and
    after 7:30 p.m. would have been critical to his defense.
    ‘‘For that reason, as both trial counsel testified, they
    would have called . . . Martin as a witness at the crimi-
    nal trial. She consistently had maintained that the peti-
    tioner was in their home with her and their son the
    entire evening of the victim’s homicide. During her testi-
    mony at the suppression hearing, [Martin] stated that
    the only time that the petitioner was not in her sight
    was between 6:15 p.m. and 7 p.m., when she was bathing
    their son. If the jury credited . . . Martin’s testimony,
    it could have concluded that the petitioner was at home
    watching television with [Martin] and their son when
    the fire had been set.
    ‘‘[In addition], if . . . Martin had testified and the
    jury believed her testimony, the jury could have con-
    cluded that the petitioner had, at most, a forty-five
    minute window of time within which to commit the
    crimes. This would mean that between 6:15 p.m. and 7
    p.m., on the night of the homicide, the petitioner: (1)
    walked the distance between his home and the victim’s
    apartment;31 (2) had a cup of coffee with the victim
    while they were chatting on the couch; (3) used the
    victim’s bathroom, located close to the victim’s bed-
    room; (4) emerged from the bathroom, saw the victim
    combing her hair and decided to sexually assault her;
    (5) undressed himself, then tore the clothes off the
    victim; (6) sexually assaulted the victim; (7) retrieved
    a knife from the kitchen; (8) stabbed the victim ten
    times in the back and once in the abdomen; (9) used
    strips of cloth to tie them as a ligature so tightly around
    the victim’s neck that the responding firefighters had
    difficulty removing the cloth; (10) loosely tied bindings
    around the victim’s wrists and stomach area; (11)
    removed the victim from the bed and placed her on or
    near the couch; (12) washed any blood from his body
    and dressed himself; (13) set fires in three separate
    locations in the victim’s apartment; and (14) walked
    the distance from the victim’s apartment back to his
    home. According to . . . Martin’s recorded statements
    to Morrissey on July 4, 1989, and her testimony at the
    suppression hearing, which the jury did not hear, the
    petitioner was sitting in the living room when she came
    downstairs from bathing their son, and there were no
    signs of exertion or excitement. She noticed nothing out
    of the ordinary in his behavior that evening.’’ (Footnotes
    altered.) Lapointe v. Commissioner of Correction,
    
    supra,
     
    138 Conn. App. 476
    –78.
    ‘‘[T]here is a reasonable probability that the result of
    [the petitioner’s] criminal trial would have been differ-
    ent had the Ludlow note been disclosed to Culligan and
    Cosgrove prior to trial. Nondisclosure prior to trial of
    the portion of the Ludlow note describing the possible
    burn time affected the overall fairness of the trial and
    was so unfair as to undermine [the court’s] confidence
    in the jury’s verdict. With the burn time estimate pro-
    vided by one of the state’s fire marshals, trial counsel
    testified that they would have retained the services of
    an arson expert and that . . . Martin would have testi-
    fied as to the petitioner’s whereabouts during the criti-
    cal times of that evening. That evidence, if believed by
    the jury, could have resulted in the jury’s finding that
    it was temporally impossible for the petitioner to have
    committed the crimes [of] which he was convicted. The
    Ludlow note was exculpatory and material in these
    circumstances. [First habeas counsel’s] performance
    was deficient [in that] he failed to pursue that issue
    at the first habeas proceeding, and the petitioner was
    prejudiced by his failure to do so. The petitioner has
    demonstrated that had there been effective representa-
    tion by [first habeas counsel], there is a reasonable
    probability that the first habeas court would have found
    that the petitioner was entitled to . . . a new trial.’’32
    (Footnote omitted.) 
    Id.,
     478–80. Accordingly, the Appel-
    late Court reversed in part the judgment of the third
    habeas court and remanded the case with direction to
    grant the petition for a writ of habeas as to the petition-
    er’s claim alleging ineffective assistance of counsel with
    respect to the Brady violation and to order a new crimi-
    nal trial.33 Id., 480. Although the Appellate Court did
    not expressly say so, it appears, as the parties agree,
    that the Appellate Court accorded no deference to the
    determination of the third habeas court that there was
    no reasonable probability that a jury would credit the
    testimony of the petitioner’s experts. Instead, the Appel-
    late Court exercised its own judgment with respect to
    whether a jury reasonably could credit the testimony
    of the petitioner’s experts.
    We granted the respondent’s petition for certification
    to appeal, limited to the issue of whether the Appellate
    Court properly reversed the judgment of the third
    habeas court and concluded that the petitioner is enti-
    tled to a new trial on the ground that first habeas coun-
    sel’s representation of the petitioner during the first
    habeas trial was ineffective due to his failure to pursue
    a claim that the state had suppressed the Ludlow note.
    See Lapointe v. Commissioner of Correction, 
    supra,
    307 Conn. 941
    . On appeal, the respondent asserts that
    the Appellate Court applied an incorrect standard of
    review in evaluating the petitioner’s Brady claim, and,
    as a result, it improperly concluded that a new trial is
    required. In particular, the respondent contends that
    the Appellate Court improperly failed to afford due
    deference to the third habeas court’s determination that
    the petitioner’s expert burn time testimony would have
    had no effect on the outcome of his criminal trial, and
    that, if the Appellate Court had accorded such defer-
    ence to that determination, it would have concluded,
    like the third habeas court, that first habeas counsel’s
    failure to pursue a claim predicated on the state’s sup-
    pression of the Ludlow note did not constitute ineffec-
    tive assistance of counsel under Strickland. The peti-
    tioner, on the other hand, maintains that the Appellate
    Court correctly determined that the testimony of his
    burn time experts reasonably could have been credited
    by the original jury, and, if the jury did credit that
    testimony, it undoubtedly would have concluded that
    the petitioner could not possibly have committed the
    crimes with which he was charged. As a result, the
    petitioner contends that first habeas counsel’s failure
    to raise a Brady claim predicated on the state’s suppres-
    sion of the Ludlow note rendered counsel’s representa-
    tion of the petitioner constitutionally deficient.
    We agree with the petitioner that, notwithstanding
    the findings of the third habeas court, there is, at the
    very least, a reasonable likelihood that a jury, upon
    hearing the testimony of the petitioner’s burn time
    experts and Martin in light of the other trial evidence,
    would harbor a reasonable doubt as to whether the
    petitioner sexually assaulted and murdered the victim,
    and then set her apartment on fire. As we explain more
    fully hereinafter, because the materiality issue ulti-
    mately presents a question of law for this court, and
    because we are not bound by the third habeas court’s
    appraisal of the scientific underpinnings of the parties’
    expert testimony, we exercise plenary review over
    those issues. On the basis of that review, it is clear that
    the question presented by this appeal must be resolved
    in favor of the petitioner: because the state deprived
    the petitioner of the opportunity to avail himself of
    highly relevant alibi evidence—evidence that, as the
    petitioner contends, the original jury readily could have
    credited—fundamental fairness requires that the peti-
    tioner be afforded the opportunity to have a second jury
    consider that exonerating testimony. Our conclusion
    takes due account of the fact that the state’s case against
    the petitioner was relatively weak, founded as it was
    on highly questionable admissions. Accordingly, the
    Appellate Court properly concluded that the judgment
    of the third habeas court must be reversed in part and
    that the petitioner was entitled to a new trial.
    II
    GOVERNING LEGAL PRINCIPLES
    A
    Brady and Strickland
    ‘‘In Brady, the United States Supreme Court held
    that the suppression by the prosecution of evidence
    favorable to an accused upon request violates due pro-
    cess [when] the evidence is material either [as] to guilt
    or to punishment, irrespective of the good faith or bad
    faith of the prosecution. . . . In Strickler v. Greene,
    
    527 U.S. 263
    , [281–82] 
    119 S. Ct. 1936
    , 
    144 L. Ed. 2d 286
    (1999), the United States Supreme Court identified the
    three essential components of a Brady claim, all of
    which must be established to warrant a new trial: The
    evidence at issue must be favorable to the accused,
    either because it is exculpatory, or because it is
    impeaching;34 that evidence must have been suppressed
    by the [s]tate, either [wilfully] or inadvertently; and
    prejudice must have ensued. . . . Under the last Brady
    prong, the prejudice that the defendant suffered as a
    result of the impropriety must have been material to
    the case . . . .’’ (Footnote added; internal quotation
    marks omitted.) State v. Ortiz, 
    280 Conn. 686
    , 717, 
    911 A.2d 1055
     (2006). ‘‘[T]he evidence will be deemed mate-
    rial only if there would be a reasonable probability of
    a different result if the evidence had been disclosed.’’
    (Internal quotation marks omitted.) State v. Jordan, 
    314 Conn. 354
    , 370, 
    102 A.3d 1
     (2014). This standard is met
    if ‘‘the favorable evidence could reasonably be taken
    to put the whole case in such a different light as to
    undermine confidence in the verdict.’’ (Internal quota-
    tion marks omitted.) State v. Ortiz, 
    supra, 717
    .
    Furthermore, with ‘‘respect to Brady’s third prong,
    a showing of materiality does not require demonstration
    by a preponderance [of the evidence] that disclosure
    of the suppressed evidence would have resulted ulti-
    mately in the defendant’s acquittal. . . . The question
    is not whether the defendant would more likely than
    not have received a different verdict with the evidence,
    but whether in its absence he received a fair trial, under-
    stood as a trial resulting in a verdict worthy of confi-
    dence. . . . The United States Supreme Court [has]
    emphasized that the [relevant test under United States
    v. Bagley, 
    473 U.S. 667
    , 682, 
    105 S. Ct. 3375
    , 
    87 L. Ed. 2d 481
     (1985)] is not a sufficiency of the evidence test.
    . . . A defendant need not demonstrate that after dis-
    counting the inculpatory evidence in light of the undis-
    closed evidence, there would not have been enough left
    to convict. . . . One does not show a Brady violation
    by demonstrating that some of the inculpatory evidence
    should have been excluded, but by showing that the
    favorable evidence could reasonably be taken to put
    the whole case in such a different light as to undermine
    confidence in the verdict. . . . Accordingly, the focus
    is not whether, based [on] a threshold standard, the
    result of the trial would have been different if the evi-
    dence had been admitted. We instead concentrate on
    the overall fairness of the trial and whether nondisclo-
    sure of the evidence was so unfair as to undermine our
    confidence in the jury’s verdict.’’ (Internal quotation
    marks omitted.) State v. Ortiz, 
    supra,
     
    280 Conn. 717
    –18.
    Put differently, materiality is established if the withheld
    evidence is of sufficient import or significance in rela-
    tion to the original trial evidence that it reasonably
    might give rise to a reasonable doubt about the petition-
    er’s guilt. See United States v. Agurs, 
    supra,
     
    427 U.S. 112
    . Additionally, ‘‘a trial court’s determination as to
    materiality under Brady presents a mixed question of
    law and fact subject to plenary review, with the underly-
    ing historical facts subject to review for clear error.’’35
    (Internal quotation marks omitted.) State v. Ortiz,
    
    supra, 720
    . Finally, in the present case, we conduct the
    required ‘‘independent review’’ of the record; 
    id., 721
    ;
    mindful of the fact that this court’s ‘‘duty to search for
    constitutional error with painstaking care is never more
    exacting than it is in a capital case . . . .’’36 (Internal
    quotation marks omitted.) Kyles v. Whitley, 
    514 U.S. 419
    , 422, 
    115 S. Ct. 1555
    , 
    131 L. Ed. 2d 490
     (1995).
    Under Strickland, ‘‘[a] claim of ineffective assistance
    of counsel consists of two components: a performance
    prong and a prejudice prong. To satisfy the performance
    prong . . . the petitioner must demonstrate that his
    attorney’s representation was not reasonably compe-
    tent or within the range of competence displayed by
    lawyers with ordinary training and skill in the criminal
    law. . . . To satisfy the prejudice prong, [the peti-
    tioner] must demonstrate that there is a reasonable
    probability that, but for counsel’s unprofessional errors,
    the result of the proceeding would have been different.’’
    (Internal quotation marks omitted.) Janulawicz v.
    Commissioner of Correction, 
    310 Conn. 265
    , 268 n.1,
    
    77 A.3d 113
     (2013). ‘‘A reasonable probability is a proba-
    bility sufficient to undermine confidence in the out-
    come.’’ Strickland v. Washington, 
    supra,
     
    466 U.S. 694
    .
    As in the case of an alleged Brady violation, ‘‘[i]n order
    to demonstrate such a fundamental unfairness or mis-
    carriage of justice, the petitioner should be required to
    show that he is burdened by an unreliable conviction.’’
    (Internal quotation marks omitted.) Michael T. v. Com-
    missioner of Correction, 
    307 Conn. 84
    , 102, 
    52 A.3d 655
     (2012). Finally, the respective roles of the habeas
    court and the reviewing court are also the same under
    Strickland as they are under Brady. As a general matter,
    ‘‘the underlying historical facts found by the habeas
    court may not be disturbed unless they were clearly
    erroneous . . . . [W]hether those facts constituted a
    violation of the petitioner’s rights under the sixth
    amendment [however] is a mixed determination of law
    and fact that requires the application of legal principles
    to the historical facts of [the] case. . . . As such, that
    question requires plenary review by this court unfet-
    tered by the clearly erroneous standard.’’ (Internal quo-
    tation marks omitted.) Gonzalez v. Commissioner of
    Correction, 
    308 Conn. 463
    , 469–70, 
    68 A.3d 624
    , cert.
    denied sub nom. Dzurenda v. Gonzalez,           U.S.    ,
    
    134 S. Ct. 639
    , 
    187 L. Ed. 2d 445
     (2013).
    In the present case, the petitioner’s claim of a consti-
    tutional violation under Strickland and Brady impli-
    cates yet another constitutional protection, namely, the
    right to present a defense. ‘‘[T]he federal constitution
    require[s] that criminal defendants be afforded a mean-
    ingful opportunity to present a complete defense.’’
    (Internal quotation marks omitted.) State v. Santana,
    
    313 Conn. 461
    , 470, 
    97 A.3d 963
     (2014). This right affords
    a defendant the opportunity to present his or her version
    of the facts, along with that of the prosecution, ‘‘so that
    [the jury] may decide where the truth lies’’; (internal
    quotation marks omitted) id.; and includes the right to
    present an alibi defense. E.g., State v. Bryant, 
    202 Conn. 676
    , 704, 
    523 A.2d 451
     (1987). Finally, it bears emphasis
    that, if the petitioner had been able to raise an alibi
    defense at his criminal trial based on the testimony of
    DeHaan, Kelder and Martin, the state would have been
    required to disprove that defense beyond a reasonable
    doubt. See, e.g., State v. Milardo, 
    224 Conn. 397
    , 407,
    
    618 A.2d 1347
     (1993).
    B
    The Principles of Brady and Strickland in Relation
    to the Facts of the Present Case
    For purposes of the present habeas petition, the peti-
    tioner was required to establish, under Strickland, that
    first habeas counsel’s failure to pursue the Brady claim
    concerning the state’s suppression of the Ludlow note
    fell below the performance standard expected of com-
    petent habeas counsel and that the petitioner was preju-
    diced thereby. To make the necessary showing of pre-
    judice, the burden was on the petitioner to demonstrate
    that the Ludlow note had been withheld by the state
    and was both exculpatory and material. In view of the
    fact that the third habeas court treated the note as
    exculpatory and assumed that it had been suppressed
    by the state,37 the petitioner was required to establish
    only that the note was material, a standard that is met
    upon a showing that, if the note had been disclosed
    before the petitioner’s criminal trial, there is a probabil-
    ity of a different outcome sufficient to undermine confi-
    dence in the outcome of that trial. Because the test for
    materiality under Brady and the test for prejudice under
    Strickland are the same—with respect to both, the peti-
    tioner must demonstrate that the alleged constitutional
    impropriety gives rise to a loss of confidence in the
    original outcome—the petitioner is entitled to a new
    trial if he can demonstrate that first habeas counsel’s
    failure to pursue a Brady claim predicated on the state’s
    suppression of the Ludlow note was sufficiently harmful
    to satisfy that standard. Because it has been determined
    that the state’s failure to disclose the Ludlow note
    deprived the petitioner of information that would have
    led him to obtain expert burn time testimony demon-
    strating that the fire was set at a time when, according
    to Martin, the petitioner was home with her, the success
    of the petitioner’s Brady claim depends on whether
    the original jury reasonably could have credited that
    expert testimony.38
    As we previously noted, the third habeas court found
    that the testimony of both parties’ burn time experts
    was thorough and extensive. Indeed, the third habeas
    court characterized that testimony as ‘‘a prototypical
    battle of . . . experts’’ who are highly qualified in their
    field. Nevertheless, the third habeas court concluded
    that the testimony of the petitioner’s experts, when
    viewed in the light of Corry’s testimony, was not suffi-
    ciently credible to give rise to a reasonable probability
    of a different result at the original trial, that is, it was
    not persuasive enough such that the jury reasonably
    might have credited it.39 The Appellate Court disagreed,
    however, concluding that the petitioner’s expert testi-
    mony was of sufficient import and credibility that the
    petitioner is entitled to a new trial at which the jury
    will evaluate that testimony.
    We therefore must decide whether the Appellate
    Court properly determined that the third habeas court
    was incorrect in concluding that the jury reasonably
    could not have credited the testimony of the petitioner’s
    burn time experts. As a reviewing court, we ordinarily
    accord deference to credibility determinations that are
    ‘‘made on the basis of [the] firsthand observation of [a
    witness’] conduct, demeanor and attitude.’’40 (Internal
    quotation marks omitted.) State v. Kendrick, 
    314 Conn. 212
    , 223, 
    100 A.3d 821
     (2014). In the present case, how-
    ever, the third habeas court’s assessment of the testi-
    mony of DeHaan and Kelder was not predicated on
    their demeanor or conduct on the witness stand, nor
    was it related to anything else that would reflect
    adversely on their credibility, such as untruthfulness,
    bias, poor memory or substandard powers of observa-
    tion. That assessment also was not dependent on any
    underlying factual findings requiring the trial court’s
    firsthand observation and determination of the credibil-
    ity or reliability of other witnesses. Rather, the third
    habeas court rejected the opinions of DeHaan and
    Kelder solely because, in its view, those opinions lacked
    an adequate foundation, first, because they were prem-
    ised on facts that were contrary to the record in the
    case, as reported by Corry, and, second, because the
    court did not credit the scientific underpinnings of those
    opinions. In such circumstances, when the habeas
    court’s assessment of the expert testimony has nothing
    to do with the personal credibility of the expert witness
    but instead is based entirely on the court’s evaluation of
    the foundational soundness of the witness’ professional
    opinion, this court is as well situated as the habeas
    court to assess that testimony for Brady purposes.
    The Indiana Court of Appeals recently addressed this
    precise issue in a case that is factually and procedurally
    indistinguishable in any material respect from this one.
    In Bunch v. State, 
    964 N.E.2d 274
     (Ind. App.), trans.
    denied, 
    971 N.E.2d 1215
     (Ind. 2012), the defendant, Kris-
    tine Bunch, who had been convicted of murder in the
    arson-related death of her son, sought a new trial based
    on newly discovered evidence concerning the place of
    origin of the fire that she was found to have set. 
    Id.,
    279–80. As in the present case, one of the issues in
    Bunch was the materiality of expert testimony concern-
    ing the fire; see id., 290; and the Court of Appeals was
    called on to review the trial court’s finding that the
    testimony of Bunch’s expert was not sufficiently worthy
    of credit to warrant a new trial. See id., 283–85, 293. In
    reversing the judgment of the trial court on that issue;
    id., 297, 304; the Court of Appeals reviewed that expert
    testimony without affording any deference to the trial
    court’s finding that the testimony lacked persuasive
    force and, therefore, did not support Bunch’s new trial
    claim. See id., 292–93. Because we agree fully with the
    well reasoned analysis of the Court of Appeals, we
    repeat it in relevant part here: ‘‘In general, [w]hether a
    [witness’] testimony at a [postconviction] hearing is
    worthy of credit is a factual determination to be made
    by the trial judge who has the opportunity to see and
    hear the witness testify. . . . It is not within the prov-
    ince of [an] appellate court to replace a trial judge’s
    assessment of witness credibility with its own. . . .
    Thus, if the [trial] court expressly finds that the testi-
    mony of a fact witness is or is not worthy of credit, we
    must accept that determination. . . .
    ‘‘However . . . the [trial] court did not find [that the]
    testimony [of Bunch’s fire expert] was not worthy of
    credit because it doubted her credibility or veracity
    based [on] a firsthand evaluation of her demeanor; the
    [trial] court found her testimony not worthy of credit
    because it was in conflict with trial evidence . . . . In
    other words, the [trial] court did not find [the expert]
    unworthy of credit on the basis of her demeanor; it
    found her expert opinion unworthy of credit on the
    basis of its foundation. Under these circumstances, we
    do not think it [is] necessary or appropriate to impute
    a personal credibility determination to which we must
    defer to the [trial] court. To do so would virtually evis-
    cerate appellate review of [postconviction] denials
    because we would have to speculate in every instance
    that the [trial] court could have concluded [that] the
    witness was not credible based on his or her demeanor.
    ‘‘Thus, although we would defer to the [trial] court’s
    assessment of fact witnesses—for instance, a trial wit-
    ness now recanting trial testimony or a new witness
    offering never-before-heard exculpatory testimony—
    we will not defer in this case to the [trial] court’s assess-
    ment of an expert’s scientific evidence. We have the
    ability to assess [the expert’s] testimony ourselves
    because her credentials and the basis for her opinion
    are part of the record. The [trial] court found [that the
    expert’s] testimony was not reliable because she did
    not establish the scientific principles for her conclusion
    and because [her] conclusions contradicted [the] undis-
    puted evidence and eyewitness testimony from the trial.
    In making such a determination, the [trial] court did
    not rely on her demeanor . . . but rather on the stated
    bases for her opinion and review of the trial record.
    We have the same information before us, and therefore
    are able to independently assess whether [the expert’s]
    testimony is worthy of credit without invading the prov-
    ince of the [trial] court.’’ (Citations omitted; emphasis
    altered; internal quotation marks omitted.) Id.; see also
    State v. Behn, 
    375 N.J. Super. 409
    , 431–33, 
    868 A.2d 329
     (App. Div.), cert. denied, 
    183 N.J. 591
    , 
    874 A.2d 1108
     (2005).41
    This case presents the same exceptional factual and
    procedural scenario as Bunch presents. Therefore, we,
    like the Appellate Court, see no reason to defer to the
    third habeas court’s predictive or probabilistic judg-
    ment as to whether the original jury reasonably might
    have credited the testimony of the petitioner’s experts.42
    This is particularly true because, as we explain in part
    III A of this opinion, the record does not support any
    of the reasons that the third habeas court provided in
    substantiation of its conclusion that the jury reasonably
    could not have credited the testimony of the petitioner’s
    experts. In fact, our review of the record reveals nothing
    to support the third habeas court’s conclusion. On the
    contrary, there is strong reason to believe that the jury
    might well have found the testimony of the petitioner’s
    experts persuasive, especially in light of their unques-
    tioned qualifications and experience.43
    In light of this determination, we finally must decide
    whether the testimony of the petitioner’s experts never-
    theless is insufficient, when considered together with
    the original trial evidence, to call into question the out-
    come of the petitioner’s criminal trial. We conclude that
    there is a very high probability that that testimony, if
    credited, along with Martin’s testimony, would give rise
    to a reasonable doubt as to whether the petitioner com-
    mitted the crimes of which he was convicted. Having
    demonstrated, therefore, that there is a real and sub-
    stantial probability that the testimony of DeHaan,
    Kelder and Martin will result in the petitioner’s acquit-
    tal, the petitioner is entitled to a new criminal trial at
    which he will have the benefit of that highly exculpa-
    tory evidence.
    III
    THE ISSUES
    A
    Whether a Jury Reasonably Could Credit
    the Testimony of DeHaan and Kelder
    We first address the respondent’s claim that the
    Appellate Court improperly rejected the third habeas
    court’s conclusion that DeHaan’s and Kelder’s testi-
    mony is not sufficiently credible to give rise to a reason-
    able doubt about the petitioner’s guilt. We disagree with
    the respondent’s contention because the record belies
    the third habeas court’s determination that, in all proba-
    bility, the original jury would have reached the same
    result even if it had heard that testimony.44
    We begin with the credentials of the petitioner’s
    experts. As the third habeas court observed, both
    DeHaan and Kelder are highly experienced fire investi-
    gators, and they have worked in that field for a com-
    bined total of more than sixty years. DeHaan’s resume
    is particularly impressive. In addition to his years of
    service as a fire investigator for the Federal Bureau
    of Alcohol, Tobacco and Firearms, and the California
    Department of Justice, he has authored or coauthored
    close to seventy-five scholarly articles or professional
    papers and a college level treatise entitled, ‘‘Kirk’s Fire
    Investigation,’’ which is presently in its seventh edition.
    DeHaan’s treatise is utilized not only by students but
    also by investigators in the field. In fact, the record
    reflects that Corry himself relied on that treatise in
    preparing his report on the fire at issue, as counsel
    for the respondent did in connection with his cross-
    examination of Kelder. The record also reveals that
    DeHaan has taught fire investigation for approximately
    thirty years, and, at the time of the third habeas trial,
    in the graduate forensic sciences program at the Univer-
    sity of California, Davis. Because these factors alone
    support the conclusion that a jury reasonably could
    credit DeHaan’s and Kelder’s testimony, we turn to the
    third habeas court’s reasons for reaching the oppo-
    site conclusion.
    As we noted previously, the third habeas court, in
    concluding that Corry was so much more persuasive
    than DeHaan and Kelder that no jury reasonably could
    credit DeHaan’s and Kelder’s testimony, relied on three
    threshold or subordinate findings: (1) DeHaan and
    Kelder mischaracterized the fire’s energy level; (2)
    DeHaan and Kelder overestimated the fire’s ‘‘peak’’ tem-
    perature; and (3) DeHaan overestimated the tempera-
    ture of the fire when Tomkunas entered the victim’s
    apartment. With respect to the first two findings, the
    third habeas court stated: ‘‘In contrast to . . . DeHaan
    and Kelder, Corry opined credibly that ‘this was not a
    high energy fire.’ He disputed DeHaan’s and Kelder’s
    estimate[s] of peak temperature. . . . Corry testified
    credibly that . . . DeHaan overstated the amount of
    heat generated by [the] fire. . . . In addition, the photo-
    graphs of the fire damage, or lack thereof, [to] materials
    in the apartment . . . do not support . . . DeHaan’s
    testimony that temperatures reached 400 degrees. . . .
    When compared with Corry’s reasonable and measured
    analysis, Kelder’s estimate of temperature at 1800
    degrees appears wildly exaggerated.’’ With respect to
    the third finding, the third habeas court stated: ‘‘Corry
    noted that Tomkunas first responded to the call and
    found [that] the door to the apartment was ‘hot,’ but
    he did not burn himself. He sustained no injury to his
    hands, his exposed ears or any other body part. These
    facts, Corry pointed out, contradict . . . DeHaan’s esti-
    mate that the temperature upon entry was 400 degrees.
    . . . Corry noted that Tomkunas had dropped to his
    knees upon entering the apartment. Corry opined [that]
    the temperature at that time was more likely 150 to
    190 degrees. The fact that Tomkunas was not burned
    contradicts any opinion that the temperature was 400
    degrees. At 400 degrees, Corry cogently explained, one
    would expect Tomkunas to [have] suffer[ed] injur[ies]
    to the back of his neck and his hands at a minimum.’’
    A review of the record reveals that the third habeas
    court’s critique of the testimony of DeHaan and Kelder
    is comprised of factually unfounded assertions. First,
    contrary to the court’s finding, DeHaan and Kelder
    never testified that the fire was a high energy fire. To the
    contrary, DeHaan emphasized throughout his testimony
    that the limited damage to the apartment was evidence
    that the fire was not a high energy fire. He described
    it as a ‘‘very limited scale fire,’’ no different from ‘‘an
    average fireplace fire.’’45 When Kelder was asked
    whether he would characterize the fire as high or low
    energy, he similarly responded, ‘‘low energy,’’ which
    he also believed was evidenced by the fact that the
    apartment was not seriously damaged. Thus, although
    the third habeas court found that Corry had persua-
    sively rebutted DeHaan’s and Kelder’s testimony that
    the fire was a high energy fire, the record is clear that
    DeHaan and Kelder never provided the testimony that
    Corry attributed to them. Indeed, when questioned
    about the fire’s energy level, DeHaan and Kelder both
    expressly characterized it as a low energy fire.
    With respect to the third habeas court’s statement
    that Corry had convincingly ‘‘disputed DeHaan’s and
    Kelder’s estimate[s] of peak temperature,’’ the peti-
    tioner correctly observes that, as between Corry and
    DeHaan, it was Corry who provided the higher estimate
    of the fire’s peak temperature. On cross-examination,
    the petitioner’s counsel asked Corry to comment on
    several photographs that were taken inside the victim’s
    apartment after the fire, one of which depicts a stack
    of charred newspapers. Corry testified that all of the
    papers in the photograph reveal ‘‘evidence of edge burn-
    ing’’ and ‘‘a heating to the . . . preignition point.’’ When
    asked whether the temperature must have been 600
    degrees for the papers to begin to char, as depicted in
    the photographs, Corry agreed and stated ‘‘[o]r more.’’
    In contrast, DeHaan opined that temperatures inside
    the apartment never exceeded 400 to 450 degrees. Thus,
    the court’s reliance on Corry’s testimony to reject
    DeHaan’s opinion that temperatures reached a peak of
    450 degrees is misplaced because Corry himself testi-
    fied that temperatures reached at least 600 degrees.
    Indeed, on cross-examination, Corry agreed that the
    temperature inside the victim’s apartment could have
    been as high as 400 degrees even when firefighters
    entered the building. His only point, he explained, was
    that it could not have been 400 degrees at floor level
    because none of the firefighters, all of whom entered
    on their hands and knees within seconds of one another,
    was burned.
    Similarly unfounded is the third habeas court’s asser-
    tion that, ‘‘[w]hen compared with Corry’s reasonable
    and measured analysis, Kelder’s estimate of tempera-
    ture at 1800 degrees appears wildly exaggerated.’’ On
    cross-examination, counsel for the respondent asked
    Kelder his opinion as to ‘‘the maximum heat . . . that
    was reached in the apartment . . . .’’ Kelder
    responded: ‘‘The maximum, I would say, would be . . .
    about 1800 degrees at ceiling level.’’ (Emphasis added.)
    When asked what he had based this estimate on, Kelder
    responded, ‘‘scientific proof. . . . [A]ny of the . . .
    fire books that I’ve read and the schools that I [have]
    attended [say] it’s 1800 to 2000 degrees at ceiling level
    [for] any fire. . . . That’s the normal ceiling [tempera-
    ture].’’ Kelder then explained that temperatures are
    always much hotter at ceiling level. Corry never dis-
    puted this testimony. To the contrary, although he was
    never questioned about ceiling level temperatures,
    Corry stated that they necessarily would have been
    ‘‘hotter because the temperature rises as you go up, for
    sure.’’ He also stated that ‘‘heat stratifies. The highest
    temperatures are always found at the ceiling or close
    to the ceiling, and, as you go down, they get less, which
    is why little children are taught in schools to crawl
    in fires, because you’re generally underneath a smoke
    layer, and there’s more oxygen there and you can sur-
    vive and actually escape a fire in many cases by crawl-
    ing, [whereas] if you stood up, you might be killed or
    seriously burned.’’ Finally, as we previously indicated,
    Corry testified that temperatures would have to have
    reached at least 600 degrees to bring the newspapers
    to their preignition point, as depicted in some of the
    crime scene photographs. In view of this testimony,
    there simply is no factual basis for the third habeas
    court’s finding that Kelder’s estimate of ceiling tempera-
    tures was ‘‘wildly exaggerated’’ and, therefore, that his
    burn time estimate was unreliable.
    In light of the foregoing, it is readily apparent that
    the third habeas court’s first two assertions—that Corry
    disputed DeHaan’s and Kelder’s testimony regarding
    peak temperature, and that, ‘‘[i]n contrast to . . .
    DeHaan and Kelder, Corry opined credibly that ‘this
    was not a high energy fire’ ’’—are not supported by the
    record. In fact, we can discern no disagreement among
    the experts with respect to the fire’s peak temperature
    or energy level. It is not surprising, therefore, that the
    respondent makes no attempt to defend the third
    habeas court’s assertion that there was a material differ-
    ence in the testimony of the parties’ experts with
    respect to the energy level of the fire and its peak tem-
    perature.
    The third reason why the third habeas court found
    Corry’s burn time estimate to be more persuasive than
    DeHaan’s estimate was DeHaan’s purported testimony
    that the floor level temperature inside the victim’s apart-
    ment was 400 degrees when Tomkunas entered the
    apartment. Relying on Corry’s testimony, the third
    habeas court reasoned that the temperature could not
    have been 400 degrees because, if the temperature had
    been that high, Tomkunas would have been injured,
    and he was not. Relying on Corry’s characterization of
    DeHaan’s testimony about the temperature at the time
    of entry, the respondent contends that, because
    DeHaan’s burn time estimate rested in large measure on
    his assessment of entry level temperatures, ‘‘Tomkunas’
    lack of injury . . . knocked [the] principal underpin-
    nings of DeHaan’s opinion out from under it.’’ As the
    petitioner notes, however, DeHaan never stated that
    the floor level temperature inside the apartment was
    400 degrees when Tomkunas entered. He testified,
    rather, that the temperature inside the hot gas layer
    was likely between 300 or 400 degrees when Tomkunas
    entered the apartment. DeHaan explained that this esti-
    mate was based, in part, on Tomkunas’ testimony at
    the petitioner’s criminal trial that, when he arrived at
    the victim’s apartment, the outside of the front door
    was hot to the touch, and ‘‘the temperatures and . . .
    hot gases he encountered at near floor level were unten-
    able, and he couldn’t go in, even though he suspected
    there was a victim inside.’’ (Emphasis added.) When
    asked whether he was able to determine what the tem-
    perature was at that time, DeHaan responded: ‘‘Only
    very approximately, [on the basis of Tomkunas’ testi-
    mony] that, when he opened the door, there was smoke
    down very low, and he got on his hands and knees and
    he had no protective equipment on, and . . . when he
    tried to crawl in, it was unpleasantly hot to his skin
    . . . as well as smoky, and, at that point, he backed
    out knowing he couldn’t go any further . . . . [S]hort
    exposure like that, that’s probably going to be tempera-
    tures in the range of say [300] or 400 degrees . . . .
    [T]hat’s enough to make most people not . . . go in
    any further [with] . . . bare skin. . . . [That level of
    temperature would cause second degree burns upon]
    prolonged contact . . . .’’
    Later, during cross-examination, DeHaan clarified
    that his estimate of entry level temperatures referred
    to the temperature inside ‘‘the hot gas layer’’ of the
    fire. DeHaan explained that, in his experience, if the
    temperature had been much lower than 300 to 400
    degrees, Tomkunas would not have been deterred from
    entering the victim’s apartment, and, if the temperature
    had been much higher, there would have been more
    damage to the apartment. DeHaan also testified that
    studies have shown that the average person will not
    attempt to enter a room if the temperature is 250
    degrees or higher, unless he has no option but to do so.
    Finally, DeHaan opined that, although an experienced
    firefighter might be willing to brave slightly higher tem-
    peratures, the fact that Tomkunas was hindered in his
    efforts to enter the victim’s apartment suggests that the
    temperature in the hot gas layer of the fire was in the
    range of 300 to 400 degrees.
    Notably, at the petitioner’s criminal trial, Tomkunas
    testified that, when he first arrived on the scene, he
    tried to enter the victim’s apartment on his own but
    was forced back by the substantial heat and ‘‘[h]eavy
    smoke condition.’’ Specifically, Tomkunas stated that,
    after he kicked in the front door, there ‘‘was a lot of
    heat, so [he] dropped to [his] knees . . . to stay below
    [the] smoke and heat.’’ Tomkunas testified that he
    crawled several feet into the room but immediately
    had to retreat because ‘‘[i]t was too hot and smoky.’’
    According to Tomkunas, after his initial, unsuccessful
    attempt to enter the apartment, he told the firefighters
    who arrived after him that they had to ‘‘vent’’ the build-
    ing ‘‘to remove the heat and smoke and hot gases.’’ One
    of those firefighters, Boland, ran to the back of the
    building and opened a set of sliding glass doors.
    According to Boland, ‘‘once [he] opened the [sliding
    glass] door[s] . . . [the apartment] cross vented,
    because the front door was open and the [sliding glass]
    door[s] [were] open, so it started to clear.’’ Both Tomku-
    nas and Boland testified that, after the apartment was
    vented, they were able to enter and locate the victim.
    Consistent with Tomkunas’ and Boland’s trial testi-
    mony, DeHaan also testified at the petitioner’s habeas
    trial that, once ‘‘conditions [inside the apartment] were
    changed by the responding firefighters . . . Tomku-
    nas’ opening the front door and [Boland’s] . . . open-
    ing the slid[ing] [glass doors] at the rear, that allowed
    . . . some of the accumulated smoke to leave and
    allowed entry for the firefighters.’’46 (Emphasis added.)
    Although it is perfectly clear that both DeHaan and
    Kelder were aware that firefighters vented the victim’s
    apartment prior to entry, and that Tomkunas had tried
    unsuccessfully to gain entry into the apartment by him-
    self prior to the arrival of the other firefighters, Corry
    either was unaware of these facts or refused to accept
    them. Corry maintained, throughout his testimony, that
    there was only one entry into the apartment by firefight-
    ers, which was not preceded by a venting. On direct
    examination, Corry was asked on several occasions
    whether he agreed with DeHaan’s estimate of entry
    level temperatures. The first time he was asked this
    question, he responded: ‘‘[T]he fact that, [on] the night
    of the fire, all . . . of the firefighters: [Tomkunas], Wil-
    liam Boland . . . William Parker and Douglas Boland,
    who were [all] in [the apartment] at basically the same
    time from different angles—none of them described
    high temperature on entry. They described heavy
    smoke. None of them talked about temperature. And,
    more importantly, none of them [was] injured in any
    way. And they would have been if the temperature had
    been anywhere close [to] 400 degrees, as . . . DeHaan
    said. . . . They would have been burned.’’ Counsel for
    the respondent then asked Corry whether he had
    ‘‘reach[ed] a conclusion regarding the temperatures that
    Tomkunas and the other firefighters encountered when
    they entered the apartment . . . .’’ Corry responded:
    ‘‘Safe to say, it was elevated 120, 130 [degrees], some-
    thing like that.’’ Thereafter, the following exchange
    between counsel for the respondent and Corry ensued:
    ‘‘Q. Do you recall reading . . . DeHaan’s report?
    ‘‘A. Yes.
    ‘‘Q. And you heard his testimony?
    ‘‘A. I did.
    ‘‘Q. Do you recall what temperature he opined . . .
    Tomkunas encountered when he entered the apart-
    ment?
    ‘‘A. 400 degrees.
    ‘‘Q. Based on your research, is that possible?
    ‘‘A. It is not possible.
    ‘‘Q. Would an individual who was not wearing protec-
    tive clothing and entered [an apartment] with tempera-
    tures of 400 degrees be injured?
    ‘‘A. Yes. Couldn’t help it.
    ‘‘Q. And would they be able to tolerate remaining in
    that environment?
    ‘‘A. No. Well . . . it all depends [on] how much they
    wanted to be burned, but they would be burned, and
    they’d be in substantial pain. And these were men who
    were, number one, on their hands and knees, which
    would expose the nape of their neck [and] the back of
    their ears, which are the most sensitive parts of our
    bodies, to temperature, and none of them described
    any burns or even mentioned heat in their original state-
    ments taken [on] the night of the fire.’’
    Thus, it is evident that Corry attributed to DeHaan
    testimony that he never gave, namely, that the floor
    level temperature inside the victim’s apartment when
    the firefighters entered was 400 degrees. It also is evi-
    dent that the third habeas court accepted Corry’s char-
    acterization of DeHaan’s testimony without verifying
    whether DeHaan actually had opined in the manner
    attributed to him by Corry. In fact, DeHaan never was
    questioned about the temperature inside the apartment
    after it was vented and all of the firefighters were able
    to enter. Nor did he express an opinion with respect
    to the floor level temperature when Tomkunas first
    entered the apartment on his own and was turned back.
    DeHaan simply stated that the temperature inside the
    hot gas layer was likely in the range of 300 to 400
    degrees when Tomkunas made his first attempt to enter,
    before the arrival of the other firefighters.47 DeHaan
    also opined that the hot gas layer did not radiate much
    heat downward toward the floor because there was
    no damage to the apartment’s synthetic carpet, which
    would have melted even at much lower temperatures.48
    Corry’s testimony regarding the effects of heat on
    human skin, in particular, his statements that the ‘‘ther-
    mal tolerance data for unprotected skin of humans at
    rest would suggest a limit of about 248 degrees’’ and
    that the ‘‘upper level limit of survivability in terms of
    breathing [is] 300 degrees,’’ supports rather than contra-
    dicts DeHaan’s testimony that the temperature inside
    the apartment was approximately 300 to 400 degrees
    when Tomkunas arrived. If the temperature had been
    much lower, an experienced firefighter like Tomkunas
    would not have been deterred from entering. As we
    have indicated, DeHaan testified that Tomkunas would
    have sustained second degree burns upon prolonged
    exposure to such temperatures. As DeHaan also testi-
    fied, however, this explained why Tomkunas was
    unable to proceed farther into the apartment when he
    first arrived, even though he knew that there might be
    someone inside. As DeHaan stated, ‘‘it was hot enough
    to dissuade [Tomkunas from] entering . . . the room.’’
    Moreover, it is difficult to fathom Corry’s response
    when, on cross-examination, the petitioner’s counsel
    pointed out to him that Tomkunas had testified at the
    petitioner’s criminal trial that the heat and smoke pre-
    vented him from entering the apartment when, unac-
    companied by other firefighters, he first attempted to
    do so: Corry’s response was simply to refuse to accept
    Tomkunas’ testimony. Specifically, when the petition-
    er’s counsel asked Corry why Tomkunas’ testimony that
    the smoke and heat forced him out of the building was
    inconsistent with DeHaan’s testimony that the tempera-
    ture was likely 300 to 400 degrees in the hot gas layer
    at that stage of the fire, Corry responded: ‘‘That’s what
    [Tomkunas] said at the trial, not what he said in his
    initial statement.’’ In support of this response, Corry
    explained that all of the firefighters gave statements to
    the police on the night of the fire, and, although those
    statements are contained in a police report that never
    was entered into evidence, Corry read them in preparing
    to testify. According to Corry, the report does not men-
    tion that any of the firefighters either were injured or
    forced out of the apartment by the heat. Corry stated
    that, as far as he was concerned, the police report was
    a more reliable gauge of the conditions that Tomkunas
    had encountered on the night in question, more so than
    ‘‘what [Tomkunas] said under oath in [a] capital [felony]
    trial,’’ because, ‘‘in general, witnesses closer to the time
    of the incident will give a better recollection.’’
    Without the benefit of the report to which Corry was
    referring, we can only surmise its contents. It is unlikely,
    however, that the investigating officer who prepared
    the report questioned Tomkunas and his fellow fire-
    fighters in minute detail about their entry into the apart-
    ment. But even if we assume that the officer had thought
    to ask the firefighters about entry level temperatures,
    no doubt none of them reported extremely high temper-
    atures inside the apartment because, as both Tomkunas
    and Douglas Boland testified, they vented the apartment
    before entering together as a group to extinguish the
    fire and to search for the victim. The fact that Corry
    felt free to disregard Tomkunas’ sworn testimony on
    this issue, on the basis of what he himself conceded
    was nothing more than ‘‘a report written by a police
    officer [on the night of the fire] as to what somebody
    told him’’—or did not tell him, as the case may be—is
    perplexing, to say the least. In any event, insofar as the
    third habeas court’s determination that a jury reason-
    ably could not credit the expert opinions of DeHaan
    and Kelder was predicated on Corry’s mischaracteriza-
    tion of their testimony regarding the energy level and
    peak temperature of the fire, and entry level tempera-
    tures, that determination lacks support in the record.
    It bears noting that the third habeas court also found
    that DeHaan’s and Kelder’s burn time estimates were
    ‘‘totally contradicted by the historical and physical evi-
    dence marshaled by Corry.’’ Because the respondent
    elected not to place Corry’s written report in evidence,
    the only basis for this finding was Corry’s trial testi-
    mony.49 When asked to explain why DeHaan’s burn time
    estimate was unreliable, however, Corry could point
    only to DeHaan’s testimony concerning the 400 degree
    temperature that the firefighters confronted upon
    entry—testimony that, as we have explained, DeHaan
    never gave. Corry explained that, if DeHaan was wrong
    that the floor level temperature was 400 degrees, ‘‘then
    he’s wrong . . . his assumptions are . . . incorrect on
    the longevity of the fire . . . .’’ Corry also stated that
    it was ‘‘clear that the fire occurred at an earlier time
    than what [DeHaan was] saying [because the fire]
    dropp[ed] in temperature enough . . . so that Tomku-
    nas and the other firefighters were not injured.’’
    Because Corry’s assessment of DeHaan’s opinion con-
    cerning the burn time of the fire was predicated on a
    misconception of DeHaan’s testimony about the entry
    level temperature, Corry’s criticism of DeHaan’s burn
    time estimate is similarly baseless.
    Significantly, Corry’s description of the fire and the
    variables that affected it was otherwise identical to
    DeHaan’s and Kelder’s analysis of the fire. Indeed, on
    cross-examination, Corry even conceded, consistent
    with DeHaan’s testimony, that the temperature ‘‘might
    very well have been 400 degrees somewhere in that
    room’’ when Tomkunas entered the apartment. His
    point, he explained, was simply that it could not have
    been 400 degrees at floor level because none of the
    firefighters was burned when the firefighters entered
    and made their way into the interior of the apartment.
    Like DeHaan and Kelder, Corry testified that the fire
    burned out quickly due to the apartment’s heavy insula-
    tion and lack of ventilation. Corry likened the apartment
    to a ‘‘thermos’’ and stated that the fire was ‘‘substantial’’
    but burned only ‘‘for a brief period of time’’ due to
    ‘‘decreasing levels of oxygen . . . .’’ On the basis of
    the photographs, Corry also opined that there might
    have been a blanket or some other object on the couch
    that prevented the fire from exhausting its main fuel
    source, which, according to Corry, was the couch cush-
    ions, and that that the blanket or object prevented the
    fire from becoming much larger. Apart from expressing
    the view that the firefighters were not injured when
    they entered the apartment, however, Corry offered no
    scientific reason for his conclusion that the fire could
    have been set considerably earlier than DeHaan and
    Kelder hypothesized.50 Rather, when asked whether he
    had reached a conclusion regarding the earliest time
    that the fire could have been set, Corry merely cited
    witness accounts of the victim’s whereabouts on the
    day of the murder.51
    Above and beyond our determination that the third
    habeas court’s stated reasons for discrediting the burn
    time estimates of DeHaan and Kelder are baseless, our
    examination of the entire record reveals no other appar-
    ent reason why a jury would be apt to discredit their
    testimony. As we have indicated, their credentials cer-
    tainly provide no such reason. Furthermore, although
    there is nothing in the record that would lead to the
    conclusion that a jury necessarily would credit Corry’s
    burn time estimate over those of DeHaan and Kelder,
    there are several reasons why a jury might well be
    inclined to discredit that estimate. First, as we pre-
    viously discussed, Corry’s opinion is based on a police
    report that purportedly contains certain statements that
    firefighters gave to the police on the night of the fire but
    that never was introduced into evidence. In particular,
    Corry based his conclusions on inferences drawn from
    what Tomkunas did not say in those statements and
    elected to ignore Tomkunas’ sworn trial testimony that
    directly contradicted the strained inferences Corry
    gleaned from the report not in evidence. Second,
    although counsel for the respondent opted not to intro-
    duce Corry’s written report into evidence, the petition-
    er’s counsel read extensively from it during his cross-
    examination of Corry. At the time, the petitioner’s coun-
    sel accused Corry of having altered his conclusions
    about the fire after listening to DeHaan’s testimony in
    an effort to create an opportunity for the respondent’s
    counsel to argue that the fire could have been started
    earlier than DeHaan had determined. Although Corry
    denied the accusation, insisting that his testimony was
    wholly consistent with the findings in his report, he
    admitted that, after listening to DeHaan’s testimony, he
    felt the need to reexamine the available evidence for
    the purpose of discrediting DeHaan’s findings. He also
    acknowledged that of the more than ninety-five criminal
    cases he had worked on, he never had testified on behalf
    of a criminal defendant and would be ‘‘hesitant’’ ever
    to do so. Although there is nothing inherently untrust-
    worthy about Corry’s preference for working for the
    prosecution, certain portions of his testimony reason-
    ably might be viewed as tending to support the petition-
    er’s counsel’s portrayal of him as someone more con-
    cerned with assisting the respondent than with seeking
    to establish the truth.
    For example, on direct examination, Corry was asked
    a series of questions designed to elicit criticism of
    DeHaan’s and Kelder’s findings. With respect to Kelder,
    the questions focused on the information that he had
    relied on in formulating his burn time estimate, in partic-
    ular, the fact that he had assumed, for purposes of his
    analysis, that the cushions on the victim’s couch were
    made of latex foam. DeHaan had concluded that the
    cushions were made of polyurethane foam, a different
    material, and Corry had agreed with that conclusion at
    trial. In an effort to discredit Kelder’s burn time esti-
    mate, counsel for the respondent asked Corry: ‘‘Would
    you be able to properly analyze this fire if you didn’t
    know the difference between latex foam rubber and
    polyurethane foam?’’ Corry responded, ‘‘[n]o.’’ The next
    day, however, on cross-examination, it was revealed
    that Corry also had assumed that the cushions were
    made of latex foam for purposes of his analysis. Follow-
    ing that revelation, Corry provided a very different
    answer to the question, posed by the petitioner’s coun-
    sel, of whether one could properly analyze the fire if
    he did not know that the couch cushions were made
    of polyurethane foam:
    ‘‘Q. But, in your report, you have that . . . the mate-
    rial was latex rubber . . . . Correct?
    ‘‘A. Right.
    ‘‘Q. Which is not what you’re saying now?
    ‘‘A. Well, there’s a reason for that. This couch closely
    resembles couches that I’ve seen manufactured in the
    1970s . . . that did contain foam rubber. That was the
    principal foam material up [until] the time that polyure-
    thane began to replace foam rubber, but it’s really a
    matter of six of one, half dozen of another, since both
    of them perform in a similar manner in fires. . . .
    [Foam] rubber and foam plastics have similar heat
    release rates, fire propagation rates, ignition tempera-
    tures, and so forth.’’ These contradictory answers by
    Corry hardly instill confidence in his testimony.
    Corry’s testimony is replete with similar inconsisten-
    cies. Sometimes, he contradicted himself for no appar-
    ent reason, such as when he denied ever calling the
    fire a low energy fire. As we previously noted, at trial,
    the respondent’s counsel focused on the fire’s energy
    level and how it may have affected the fire’s develop-
    ment, so much so that the third habeas court, in its
    memorandum of decision, included a finding that,’’[i]n
    contrast to . . . DeHaan and Kelder, Corry opined
    credibly that ‘this was not a high energy fire.’ ’’ As we
    explained, however, this finding lacks support in the
    record because both DeHaan and Kelder opined that
    the fire was a low energy fire. Nevertheless, on direct
    examination, Corry repeatedly characterized the fire as
    a ‘‘low energy’’ fire, on one occasion describing it as
    ‘‘a very low energy fire’’ and asserting, at another point,
    that there was ‘‘abundant evidence that clearly shows
    . . . that this fire was low energy . . . .’’ (Emphasis
    added.)
    On cross-examination, however, Corry denied ever
    characterizing the fire in terms of low energy. During
    one heated exchange with the petitioner’s counsel,
    Corry was asked: ‘‘Now, as I understand your testimony
    . . . [you said] that there’s a low energy fire set in this
    couch, and this low energy fire kind of really becomes
    a smoldering fire, right?’’ Corry responded: ‘‘I didn’t say
    it was a low energy fire. It’s lower than it could have
    been.’’ The petitioner’s counsel then asked Corry: ‘‘Well,
    I thought that’s exactly what you said . . . in your testi-
    mony on direct examination. That’s exactly what you
    said; it was a low energy fire.’’ Corry responded, in part:
    ‘‘I don’t believe I said anything like that.’’
    Needless to say, it is not the role of this court to make
    credibility determinations, and we therefore express no
    opinion as to whether Corry is a more persuasive or
    convincing witness than DeHaan or Kelder. Our sole
    purpose in drawing attention to the inconsistences in
    Corry’s testimony is merely to underscore why, con-
    trary to the conclusion of the third habeas court, the
    original jury might well have credited the burn time
    opinions of DeHaan and Kelder, and why it might well
    have rejected Corry’s estimate. Of course, on retrial, it
    is possible that the jury will not find the testimony of
    DeHaan and Kelder persuasive; like all witnesses, they
    will be subject to impeachment, and, at that new trial,
    the state may be able to present an expert or experts
    who, in contrast to Corry, provide testimony explaining
    why the burn time opinions of the petitioner’s experts
    lack persuasive force. Or the jury might conclude, like
    the third habeas court did, that it simply is not possible
    to determine the burn time of a fire, even within rela-
    tively broad parameters, with any degree of confidence
    or exactitude. But, for purposes of the present case,
    which involves the suppression of exculpatory evidence
    by the state, our task is not to determine whether the
    jury more likely than not would have credited their
    testimony, such that the petitioner would have pre-
    vailed at a new trial. Cf. Shabazz v. State, 
    259 Conn. 811
    , 827–28, 
    792 A.2d 797
     (2002) (in resolving merits
    of petition for new trial based on newly discovered
    evidence, trial court must determine whether petitioner
    has established that new trial will produce different
    result). The question, rather, is whether the jury reason-
    ably could have credited the testimony of the petition-
    er’s witnesses. On the record before us, there simply
    is no legitimate basis for concluding that the jury rea-
    sonably could not have credited the testimony of
    DeHaan and Kelder, both of whom are well credentialed
    and highly experienced experts in their field, and whose
    testimony, when coupled with that of Martin’s, supports
    the petitioner’s contention that he could not possibly
    have sexually assaulted and killed the victim.
    This observation, however, does not end our inquiry.
    We still must determine whether, if the original jury
    had considered the original trial evidence together with
    DeHaan’s and Kelder’s testimony that the fire was set
    no earlier than 7:30 p.m., as well as Martin’s unwavering
    testimony that the petitioner was home with her and
    their son watching television at that time, there is a
    probability of a different result sufficient to undermine
    confidence in the jury’s verdict. For the reasons set
    forth in part III C of this opinion, this standard has
    been met. Indeed, the state’s less than compelling case
    against the petitioner was such that any new evidence
    tending to cast doubt on the petitioner’s responsibility
    for the charged crimes could well have lead to an acquit-
    tal, and the petitioner’s expert testimony concerning the
    burn time of the fire, coupled with Martin’s testimony,
    certainly raises doubts about the reliability of the peti-
    tioner’s conviction.
    Before turning to a discussion of the original trial
    evidence, however, we first address the three conten-
    tions raised by Justice Zarella in his dissenting opinion:
    (1) we have treated the respondent unfairly by deciding
    a claim that the parties have not raised; (2) we incor-
    rectly have concluded that the Appellate Court properly
    exercised de novo review of the third habeas court’s
    determination as to whether a jury reasonably could
    credit the testimony of the petitioner’s experts; and
    (3) the record establishes, as the third habeas court
    determined, that the petitioner’s expert testimony is
    not worthy of credit. We reject each of these claims.
    B
    Justice Zarella’s Arguments
    1
    Justice Zarella contends that, in concluding that the
    third habeas court’s materiality determination is not
    entitled to deference, we have ‘‘summon[ed] down [our]
    deus ex machina’’ and decided an issue that the parties
    never raised, thereby ‘‘silencing’’ the respondent, inflict-
    ing ‘‘acute’’ harm on the state and ‘‘undermin[ing] the
    fairness of our judicial process.’’ Justice Zarella’s rheto-
    ric may make for entertaining reading, but the facts
    categorically refute his accusations.
    Some brief background is necessary in order to fully
    understand why Justice Zarella’s argument is both
    unfaithful to the record and baseless. It is undisputed
    that the Appellate Court accorded no deference to the
    third habeas court’s findings with respect to the credi-
    bility of the parties’ burn time experts. See Lapointe v.
    Commissioner of Correction, 
    supra,
     
    138 Conn. 476
    –79.
    According to Justice Zarella, however, the Appellate
    Court did not evaluate the testimony of the petitioner’s
    experts, as Brady requires, to ascertain the materiality
    of the Ludlow note in light of the record as a whole
    but, rather, concluded that neither the Appellate Court
    nor the third habeas court had any role whatsoever in
    assessing the expert testimony. In other words, as Jus-
    tice Zarella indicates, the Appellate Court never under-
    took an analysis of the testimony and, instead, merely
    ‘‘hypothesiz[ed]’’ what a jury could find if it credited
    the testimony and, on the basis of that ‘‘speculation,’’
    concluded that ‘‘a new jury, and not the habeas court,’’
    should evaluate it. (Emphasis in original.) In Justice
    Zarella’s view, because this approach obviously is
    improper, and because, according to Justice Zarella,
    the petitioner’s only claim is that we should approve
    the Appellate Court’s use of such a methodology, our
    analysis begins and ends there: the respondent prevails
    on appeal, the judgment of the Appellate Court is
    reversed, and the judgment of the third habeas court
    denying the habeas petition is reinstated. Proceeding
    any farther, Justice Zarella asserts, would take us
    beyond the scope of the claims raised in this appeal.52
    Justice Zarella’s assertion to the contrary notwith-
    standing, there is absolutely no basis for presuming that
    the Appellate Court concluded that neither it nor the
    third habeas court had a role in evaluating the credibility
    of the parties’ expert testimony and that those courts’
    sole responsibility, instead, was to speculate as to what
    the original jury might have concluded if it had credited
    the petitioner’s expert testimony. Under this approach,
    any defendant who makes a claim under Brady—no
    matter how preposterous or outlandish the testimony
    that provides the basis for that claim—automatically
    would be entitled to a new trial if, assuming that a jury
    believed it, that jury might find the defendant not guilty.
    No one, let alone a court of law, ever would advocate
    for such a ludicrous standard, as it is perfectly obvious
    that a defendant cannot be entitled to a new trial under
    Brady when an objective assessment of the testimony
    on which the defendant’s claim is based reveals that it
    is incredible or unworthy of belief. Because there is no
    support in the law of this or any other jurisdiction for
    the bizarre proposition that our courts play no part
    in evaluating the credibility of evidence presented to
    establish a Brady claim—and because common sense
    dictates that that approach cannot possibly be correct—
    it verges on insulting to presume that the Appellate
    Court employed such a patently improper and utterly
    unworkable approach.
    Moreover, a review of the Appellate Court’s decision
    positively belies any such presumption. First, the Appel-
    late Court discussed the facts of the case at length;
    Lapointe v. Commissioner of Correction, 
    supra,
     
    138 Conn. App. 456
    –58, 462–63, 468–73; and summarized
    the parties’ expert burn time testimony in the context
    of the relevant facts. 
    Id.,
     472–73. The Appellate Court
    also explained the decision and factual findings of the
    third habeas court; 
    id.,
     472–74; and observed that the
    third habeas court had found that the petitioner’s
    experts provided thorough and extensive testimony
    concerning the fire’s burn time. Id., 473. The Appellate
    Court then properly set forth the standard of review
    and governing legal principles under Brady and Strick-
    land; id., 474–76; and, in so doing, quoted from this
    court’s decision in State v. Ortiz, 
    supra,
     
    280 Conn. 720
    ,
    in which we explained that, on appeal, the issue of
    materiality presents a mixed question of law and fact,
    with the trial court serving as the fact finder. Lapointe
    v. Commissioner of Correction, 
    supra,
     
    138 Conn. App. 475
    . Ultimately, on the basis of the testimony of the
    parties’ experts, the Appellate Court concluded that the
    petitioner is entitled to a new trial, and, as Justice Zare-
    lla acknowledges, it did so without affording any defer-
    ence to the third habeas court’s contrary findings. See
    
    id.,
     476–79. Because, under our law—and so far as we
    know, the law of every other jurisdiction—the only
    alternative to deferential appellate review is de novo
    appellate review, it is apparent that the Appellate Court
    engaged in that latter form of review. As we have
    explained, that is the correct standard of review in the
    present case.
    Finally, in defending his interpretation of the Appel-
    late Court’s decision, Justice Zarella asserts that there
    is no indication in that decision that the Appellate Court
    evaluated the petitioner’s expert testimony to deter-
    mine whether a jury reasonably could credit it. Justice
    Zarella argues, rather, that the Appellate Court simply
    concluded ‘‘that assessing the credibility of the expert
    witnesses was a task best left to a jury,’’ without any
    assessment of their testimony either by the trial court
    or by the Appellate Court. In support of his assertion
    that the Appellate Court concluded that no judicial
    review of the parties’ expert testimony was the proper
    approach, Justice Zarella quotes the following language
    from a footnote in the Appellate Court’s decision: ‘‘If
    the Ludlow note had been disclosed to trial counsel,
    however, it would have been the responsibility of the
    jury and not the court to weigh the credibility of the
    arson experts. Whether the burn time evidence, which
    was so critical in buttressing [the petitioner’s] alibi
    defense, raised a reasonable doubt as to the petitioner’s
    guilt would best be a determination left to the jury and
    not [to] a habeas court.’’ (Emphasis omitted; internal
    quotation marks omitted.) Part II of Justice Zarella’s
    dissenting opinion, quoting Lapointe v. Commissioner
    of Correction, 
    supra,
     
    138 Conn. App. 476
    –77 n.17. The
    portion of the Appellate Court’s decision that Justice
    Zarella fails to mention—the portion that places the
    language on which Justice Zarella relies in its proper
    context—leaves no doubt that the Appellate Court
    reached its conclusion that the petitioner is entitled
    to a new trial under Brady only after undertaking an
    independent review of the parties’ expert testimony.
    More specifically, after stating that the testimony of
    the petitioner’s two experts would have been critical
    to establishing an alibi, the Appellate Court ‘‘con-
    clude[d] that there is a reasonable probability that the
    result of [the petitioner’s] criminal trial would have
    been different had the Ludlow note been disclosed to
    [the petitioner’s trial counsel] prior to [his criminal]
    trial. Nondisclosure prior to trial of the portion of the
    Ludlow note describing the possible burn time affected
    the overall fairness of the trial and was so unfair as
    to undermine our confidence in the jury’s verdict. With
    the burn time estimate provided by one of the state’s
    fire marshals, trial counsel testified that they would
    have retained the services of an arson expert and that
    . . . Martin would have testified as to the petitioner’s
    whereabouts during the critical times of that evening.
    That evidence, if believed by the jury, could have
    resulted in the jury’s finding that it was temporally
    impossible for the petitioner to have committed the
    crimes [of] which he was convicted. The Ludlow note
    was exculpatory and material in these circumstances.
    [First habeas counsel’s] performance was deficient
    when he failed to pursue that issue at the first habeas
    proceeding, and the petitioner was prejudiced by his
    failure to do so. The petitioner has demonstrated that
    had there been effective representation by [first habeas
    counsel], there is a reasonable probability that the first
    habeas court would have found that the petitioner was
    entitled to [the] reversal of [his] conviction and a new
    trial.’’ (Emphasis added; footnote omitted.) 
    Id.,
     478–80.
    It is simply impossible to read this passage and con-
    clude that the Appellate Court did not undertake a sub-
    stantive and independent review of the petitioner’s
    expert testimony. Only by evaluating the substance of
    the testimony and concluding that it was sufficiently
    credible could the Appellate Court have concluded, as
    it did, that the petitioner’s inability to use it at trial
    adversely ‘‘affected the overall fairness of [the petition-
    er’s criminal] trial and was so unfair as to undermine
    [the Appellate Court’s] confidence in the jury’s verdict.’’
    
    Id.,
     478–79. In other words, unless the Appellate Court
    actually examined and assessed the evidence, there is
    no way that the Appellate Court could have determined
    that, if the expert testimony had been available to the
    petitioner at his criminal trial, there is a reasonable
    probability of a different verdict, as Brady requires.53
    Not surprisingly, the respondent does not claim that
    the Appellate Court concluded that neither it nor the
    third habeas court was obligated to review the expert
    testimony but, rather, was to merely assume that such
    testimony was credible.54 In fact, the respondent
    expressly recognizes that the Appellate Court did
    review the parties’ expert testimony. For example, the
    respondent claims that, ‘‘[a]s for the testimony of Mar-
    tin, Kelder and DeHaan, the Appellate Court’s conclu-
    sion that this evidence would have supported the
    [petitioner’s] alibi defense is not sustainable.’’ (Empha-
    sis added.) The respondent also claims that the Appel-
    late Court ‘‘failed to consider the [state’s] compelling
    evidence of guilt’’ in conducting its review of the testi-
    mony of DeHaan, Kelder and Martin. At no time has
    the respondent ever suggested that the Appellate Court
    viewed itself and the third habeas court as having no
    role in evaluating the credibility of the parties’ expert
    testimony. Nor has the respondent ever claimed that
    the Appellate Court did not conduct a substantive, de
    novo review of that testimony. He argues, rather, that
    the Appellate Court improperly failed to defer to the
    determination of the third habeas court in concluding
    that a jury reasonably might credit the petitioner’s
    experts.55 Consistent with this contention, the respon-
    dent’s brief contains a thoroughgoing discussion of why
    the Appellate Court’s review of the expert testimony
    should have been tempered by deference to the findings
    of the third habeas court. Because the respondent him-
    self claims that the Appellate Court should have
    deferred to the conclusion of the third habeas court,
    rather than conducting a de novo review, it defies credu-
    lity to assert that the respondent was not on notice that
    we would decide the claim, as Justice Zarella asserts.56
    Ironically, then, it is Justice Zarella who would decide
    this appeal on the basis of a claim that has not been
    raised or briefed by the parties, that is, the propriety
    of the Appellate Court’s purported determination that
    a Brady violation automatically entitles a defendant
    to a new trial, without any judicial evaluation of the
    credibility of the testimony that supports a finding of
    that violation.57
    Having asserted, wrongly, that the respondent lacked
    notice that we would decide whether the third habeas
    court’s determination was subject to deferential or de
    novo review, Justice Zarella compounds his error by
    alleging that the respondent also could not have known
    that we might decide that issue against him and, if we
    did, that we then would proceed to the issue of whether
    the Appellate Court properly concluded that the third
    habeas court had resolved the issue incorrectly. This
    argument fails, of course, because it is based on a false
    premise. Because the respondent asked us to decide
    the proper standard of review, it hardly could be clearer
    that he was on notice that, if we disagreed with his
    contention that the Appellate Court improperly
    employed a de novo standard of review, we also would
    decide whether the Appellate Court, having applied that
    standard, reached the correct conclusion in reversing
    the judgment of the third habeas court. Otherwise, we
    would be unable to determine whether the judgment
    of the Appellate Court should be affirmed or reversed.
    See State v. Fausel, 
    295 Conn. 785
    , 793, 
    993 A.2d 455
    (2010) (‘‘in a certified appeal, the focus of [this court’s]
    review is . . . [on] the actions of the Appellate Court’’
    [internal quotation marks omitted]). We therefore reject
    Justice Zarella’s manufactured allegation that we have
    ‘‘silenc[ed]’’ the respondent by ‘‘denying [him] notice
    and a chance to brief the issue . . . .’’58
    In light of the foregoing, it is apparent that we have
    not decided an issue that the parties have not raised.
    On the contrary, the respondent himself raised the issue
    about which Justice Zarella complains and then fully
    briefed it. Clearly, Justice Zarella’s assertion that it is
    somehow unfair of us to decide the respondent’s claim
    against him fails because it is against all logic and com-
    mon sense. As we have explained, in arguing that the
    judgment of the Appellate Court should be reversed
    because that court merely assumed the credibility of the
    petitioner’s expert testimony without evaluating that
    testimony, it is Justice Zarella who would resolve this
    appeal on the basis of a claim that has not been raised.
    That would be unfair.
    2
    Justice Zarella also challenges our determination that
    the Appellate Court properly exercised de novo review
    over the third habeas court’s predictive judgment as
    to whether a jury reasonably could have credited the
    petitioner’s experts. He contends that our conclusion
    is foreclosed by our case law, that we have improperly
    usurped the function of the third habeas court in
    reviewing its findings de novo because that court neces-
    sarily was in a better position to assess credibility than
    we are, and that employing that standard of review in
    the present case violates the state constitutional prohi-
    bition against fact-finding by an appellate tribunal.
    We disagree.59
    With respect to Justice Zarella’s first claim, we have
    explained, in part II of this opinion, why, like the courts
    in Bunch v. State, supra, 
    964 N.E.2d 292
    –93, and State
    v. Behn, supra, 
    375 N.J. Super. 431
    –33, we are convinced
    that the Appellate Court properly exercised de novo
    review over the third habeas court’s conclusion con-
    cerning the likelihood that a jury would credit the peti-
    tioner’s experts, and we need not belabor our reasoning
    here. Suffice it to say that this case presents a highly
    unusual scenario: the third habeas court’s probabilistic
    assessment was predicated solely on the scientific opin-
    ions of highly qualified experts whose character, relia-
    bility and veracity never have been questioned, and the
    third habeas court’s ability to evaluate their credibility
    firsthand, on the basis of their performance on the wit-
    ness stand, had no bearing on that court’s judgment.
    The court’s decision, rather, was based solely on its
    view that the foundation of the opinion expressed by
    the respondent’s expert was sounder than the opinions
    of the petitioner’s experts.60 In such circumstances, we
    are in as good a position as the third habeas court
    to gauge whether a jury reasonably could credit the
    opinions of the petitioner’s experts. Although we agree
    fully with Justice Zarella that the general rule is one of
    deference, even in cases involving claims under Brady,
    this case represents a limited exception to that rule
    because, as we previously discussed; see footnotes 42
    and 43 of this opinion and accompanying text; there is
    no justification for deferring to the third habeas court’s
    findings and compelling reason not to do so. Justice
    Zarella’s observation that we cannot cite an appellate
    case from this state in which we have applied such an
    exception proves only one thing: we previously have
    not had a case on all fours with this one.61 The fact that
    such a case is so uncommon, moreover, is a complete
    answer to Justice Zarella’s ‘‘the sky is falling’’ con-
    tention that we have opened the floodgates to future
    litigants, for only in the rare case that a litigant can
    establish that his case is materially similar to this one
    will he be entitled to de novo review of the lower court’s
    materiality determination.
    Justice Zarella accuses us of improperly usurping the
    fact-finding role of the third habeas court because, in
    his view, ‘‘[e]valuating the credibility of a witness’ oral
    testimony is a complex process that always entails
    consideration of subjective factors like the attitude,
    candor and demeanor of the witness, and this assess-
    ment cannot be based solely on objective factors
    reflected in the printed record.’’ (Emphasis in original.)
    We disagree that the assessment of testimony, in partic-
    ular, the evaluation of expert testimony by the court,
    necessarily and invariably involves consideration of the
    subjective factors that Justice Zarella identifies. This is
    a case in point. As we have explained, there is nothing
    in the record to suggest that the decision of the third
    habeas court was predicated on the court’s subjective
    view of the credibility of the parties’ experts, and the
    court’s explanation of its decision demonstrates con-
    vincingly that subjective considerations did not cause
    the court to credit the respondent’s expert, Corry, over
    the petitioner’s experts, DeHaan and Kelder. Rather, as
    the third habeas court expressly stated, it was per-
    suaded by the soundness of Corry’s scientific opinion
    and by Corry’s critique of the testimony of DeHaan and
    Kelder. In view of the objective reasons that the third
    habeas court gave for its conclusion, and in the absence
    of any indication, expressed or otherwise, that the court
    relied on purely subjective factors in discrediting the
    petitioner’s experts, we will not presume that it did so.
    This conclusion is reinforced by the fact that, at oral
    argument before this court, the respondent’s appellate
    counsel acknowledged that the third habeas court had
    ‘‘to fully articulate its reasons for making a credibility
    determination’’ and, further, that ‘‘we have a habeas
    court here making a credibility determination and
    assigning very specific reasons for why [it] did that.’’
    (Emphasis added.)
    With respect to Bunch v. State, supra, 
    964 N.E.2d 274
    ,
    Justice Zarella makes three arguments in an attempt to
    discredit our reliance on the reasoning of that case.
    None of those arguments undermines the validity of
    that reasoning to even the slightest degree. First, he
    suggests that Bunch is distinguishable because it
    involves a petition for a new trial based on newly discov-
    ered evidence, whereas the present case involves a
    claim founded on Brady and Strickland. Justice Zarella
    further asserts that Indiana applies a different standard
    for determining the merits of new trial petitions than
    we do in this state. These are classic distinctions with-
    out any difference. The fact that the court in Bunch
    addressed a claim based on newly discovered evidence
    is wholly irrelevant because that claim requires exactly
    the same analysis as claims under Brady and Strick-
    land, as they entail the same considerations.62 With
    respect to the argument that the elements of a new trial
    claim based on newly discovered evidence differ in
    Indiana and Connecticut, this, too, is irrelevant because
    the precise nature of those elements has absolutely
    nothing to do with the separate and distinct issue of
    whether the findings of either state’s trial courts are
    entitled to deference in those cases.
    Justice Zarella next argues that Bunch is inconsistent
    with this state’s jurisprudence because our cases reveal
    that we have erected an absolute bar to de novo review
    of findings by a trial court, no matter what the circum-
    stances. This is simply not true. When there is sound
    reason not to defer to the trial court—that is, when we
    are in as good a position as the trial court to decide
    the issue—we need not, and will not, do so.63 Like
    Bunch,64 this is such a case, and Justice Zarella has
    failed to identify any flaw in the reasoning of Bunch
    that would warrant a contrary conclusion.
    Justice Zarella’s third and final contention is that
    engaging in de novo review of the third habeas court’s
    materiality determination runs afoul of the state consti-
    tutional ban on fact-finding by an appellate tribunal.
    See, e.g., Styles v. Tyler, 
    64 Conn. 432
    , 461, 
    30 A. 165
    (1894). The respondent has not raised a constitutional
    objection to the Appellate Court’s allegedly improper
    failure to defer to the findings of the third habeas court,
    and it therefore is not proper for Justice Zarella to do
    so. Because Justice Zarella addresses it, however, we
    also will do so. Review of the claim makes clear why
    the state did not raise it: it is devoid of merit.
    In Styles, this court discussed the division of author-
    ity between trial courts and appellate courts as contem-
    plated by the state constitution, and explained that
    ‘‘pure issues of fact’’ fall outside the authority of the
    latter. 
    Id.
     In other words, appellate courts do not try
    cases or retry cases on appeal. As the court in Styles
    made clear, however, the fact-finding that is constitu-
    tionally prohibited does not include appellate review of
    facts found by the trial court. See id., 459. Furthermore,
    ‘‘[a]mong the questions of law belonging to the jurisdic-
    tion of this court . . . are . . . questions of legal con-
    clusion when law and fact are so intermingled that the
    main fact is not a pure question of fact but a question
    of the legal conclusion to be drawn from subordinate
    facts and also questions whether particular subordinate
    facts constitute the basis for a conclusion of fact or a
    conclusion of law . . . .’’ Id. As we have explained,
    materiality under Brady and Strickland is a mixed ques-
    tion of law and fact.
    In the present case, de novo appellate review of the
    third habeas court’s materiality decision does not
    impermissibly intrude on that court’s fact-finding func-
    tion because it does not require appellate fact-finding
    at all. Our review of the testimony of the parties’ experts
    does not require us to disturb the third habeas court’s
    relative credibility judgment, that is, its determination
    that the respondent’s expert was more credible than
    the petitioner’s experts. Nor does it deprive the third
    habeas court of its responsibility to evaluate that expert
    testimony on the basis of its firsthand assessment of
    the parties’ experts, because the court’s ultimate con-
    clusion with respect to the credibility or persuasiveness
    of the experts’ opinions was not based on its superior
    position to evaluate them. This is so because the third
    habeas court made no factual findings that derived from
    its ability to assess the credibility of the experts in light
    of their conduct and demeanor on the witness stand.
    Indeed, the third habeas court’s assessment did not
    require any findings at all with respect to disputed
    issues of historical fact. Rather, the third habeas court’s
    probabilistic judgment was predicated on its belief,
    based solely on the foundational underpinnings of the
    various expert opinions, that the opinion of the respon-
    dent’s expert was sounder, and therefore more deserv-
    ing of credit, than those of the petitioner’s experts.
    Because we are in as good a position as the third habeas
    court to evaluate the substance of those opinions, we
    are also as well positioned to decide whether a jury
    reasonably might credit them. For that reason, our de
    novo review of the third habeas court’s predictive judg-
    ment does not usurp the role of that court in any way,
    and, consequently, there is no reason for us to defer to
    it. In such circumstances, the issue gives rise to a ques-
    tion of law, and there is no constitutional violation.
    Although the foregoing discussion resolves Justice
    Zarella’s constitutional claim, it bears noting that Jus-
    tice Zarella has a very broad view of the scope of the
    constitutional ban on appellate fact-finding. This view,
    however, ignores the fact that our appellate authority
    extends to actions that implicate the fact-finding func-
    tion to a far greater degree than the de novo review
    that we exercise in the present case. For example, under
    the second prong of the clearly erroneous standard, we
    may substitute our view for that of the fact finder when,
    although there is sufficient evidence in the record to
    support a particular finding, the reviewing court never-
    theless ‘‘is left with the definite and firm conviction
    that a mistake has been committed.’’ (Internal quotation
    marks omitted.) State v. Maurice M., 
    303 Conn. 18
    ,
    27, 
    31 A.3d 1063
     (2011); see also id., 37, 44 (reversing
    conviction of defendant, despite evidentiary support for
    jury’s finding of guilt, because this court had definite
    and firm conviction that mistake had been made).
    Another such example is State v. Kitchens, 
    299 Conn. 447
    , 
    10 A.3d 942
     (2011), in which we concluded that
    defense counsel’s failure to raise a constitutional chal-
    lenge to the trial court’s jury instructions may,
    depending on the circumstances, constitute a waiver
    of the defendant’s right to raise such a claim on appeal.
    See 
    id.,
     482–83. As we explained in Kitchens, because
    such a waiver is implied rather than express, it ‘‘arises
    from an inference that the defendant knowingly and
    voluntarily relinquished the right in question.’’ (Empha-
    sis omitted.) 
    Id., 483
    . As this court also has observed,
    the decision whether to draw an inference in any given
    set of circumstances is a quintessential ‘‘question of
    fact, to be answered by a fact finder.’’ State v. Diaz,
    
    226 Conn. 514
    , 526 n.8, 
    628 A.2d 567
     (1993); see also
    
    id.
     (‘‘The process of making a legal determination of
    whether a particular inference drawn by a fact finder
    is reasonable, as opposed to the process of determining
    whether to draw such an inference, is particularly famil-
    iar to a reviewing court. That is the essence of the
    difference between a question of law, to be answered
    by a reviewing court, and a question of fact, to be
    answered by a fact finder.’’). Despite the fact intensive
    nature of this inquiry—as we explained in Kitchens,
    whether to draw an inference of waiver ‘‘must be based
    on a close examination of the record and the particular
    facts and circumstances of each case’’; State v. Kitch-
    ens, 
    supra,
     483—this court, and not the trial court in
    which the alleged waiver occurred, is responsible for
    deciding, as a matter of fact, whether counsel waived
    the claim. See 
    id.
     Nevertheless, this decision is consid-
    ered a question of law over which we exercise plenary
    review. E.g., State v. Davis, 
    311 Conn. 468
    , 477, 
    88 A.3d 445
     (2014). It simply cannot be that the constitution
    permits the kind of fact bound determinations that are
    required under the second prong of the clearly errone-
    ous test and under our Kitchens waiver methodology
    but bars plenary review in the present case, as Justice
    Zarella maintains.65
    3
    Justice Zarella argues that, notwithstanding the myr-
    iad factual errors contained in the third habeas court’s
    memorandum of decision, the record nevertheless sup-
    ports the conclusion that no jury reasonably could
    credit the petitioner’s experts. To this end, Justice Zare-
    lla makes three primary arguments in an effort to dem-
    onstrate why the testimony of the petitioner’s experts
    ‘‘simply is not reliable . . . .’’ They are: (1) the fact that
    Tomkunas was not burned upon entering the victim’s
    apartment renders DeHaan’s burn time estimate unreli-
    able; (2) DeHaan mistakenly believed that the tempera-
    ture inside the victim’s apartment prevented Tomkunas
    from entering the apartment when he first arrived; and
    (3) DeHaan’s testimony was internally inconsistent and
    therefore unreliable. None of these arguments, how-
    ever, is supported by the record.
    First, Justice Zarella argues that, because Tomkunas
    crawled several feet into the victim’s apartment when
    he first arrived, and remained inside for as long as
    fifteen to twenty seconds before being forced to retreat,
    the fact that Tomkunas was not burned ‘‘completely
    contradicts DeHaan’s claim that the [victim’s] apart-
    ment was close to 400 degrees when Tomkunas first
    kicked in the door.’’ Justice Zarella’s argument is predi-
    cated on the same fundamental misunderstanding of
    DeHaan’s testimony that led the third habeas court so
    far astray, namely, that DeHaan testified that floor level
    temperatures were 400 degrees when Tomkunas
    entered the building. As we have explained, DeHaan
    never was asked about floor level temperatures. More
    importantly, he made it clear that, when he spoke of
    entry level temperatures in the 300 to 400 degree range,
    he was referring to temperatures in the hot gas layer
    of the fire, not floor level temperatures. See footnote 47
    of this opinion and accompanying text. Indeed, DeHaan
    was of the view that not even the hot gas layer tempera-
    ture reached higher than 450 degrees at the fire’s peak,
    and that it radiated very little heat downward toward
    the floor because the victim’s synthetic rug was not
    damaged in any way. See footnote 48 of this opinion.
    DeHaan explained that, ‘‘even under fairly low radiant
    heat intensities, synthetic fabrics like carpets tend to
    start to melt, and, when they do, they get kind of crispy
    to the touch,’’ which did not happen to the victim’s
    carpet.
    Despite the clarity of DeHaan’s testimony with
    respect to the meaning of ‘‘entry level temperatures,’’
    Justice Zarella insists that ‘‘DeHaan estimated that Tom-
    kunas would have experienced temperatures near 400
    degrees ‘to the bare skin,’ ’’ and, therefore, the third
    habeas court properly discredited his burn time esti-
    mate. Only by taking a handful of DeHaan’s words out
    of context and ignoring the remainder of his testimony
    is it possible for Justice Zarella to attribute to DeHaan
    the view that floor level temperatures were 400 degrees
    when Tomkunas entered the building, or at any other
    time. The testimony that Justice Zarella relies on to
    support this argument is the last four words of DeHaan’s
    response to the questions of whether, in the course of
    his investigation, he was able to determine entry level
    temperatures, and what bearing those temperatures had
    on his estimate of the fire’s burn time. With respect to
    whether he was able to determine entry level tempera-
    tures, DeHaan responded: ‘‘Only very approximately,
    [on the basis of Tomkunas’ testimony] that when he
    opened the door, there was smoke down very low, and
    he got on his hands and knees and he had no protective
    equipment on, and . . . when he tried to crawl in, it
    was unpleasantly hot to his skin . . . as well as smoky,
    and, at that point, he backed out knowing he couldn’t
    go any further . . . . [S]hort exposure like that, that’s
    probably going to be temperatures in the range of say
    [300] or 400 degrees . . . . [T]hat’s enough to make
    most people not . . . go in any further [with] . . .
    bare skin.’’ We do not understand DeHaan to be saying
    that Tomkunas’ bare skin was exposed to 400 degree
    temperatures. To the extent that there may be ambiguity
    in this portion of DeHaan’s testimony, however, it is
    entirely dispelled by the remainder of his testimony. As
    we previously indicated; see footnote 47 of this opinion;
    on cross-examination, the respondent’s counsel asked
    DeHaan exactly what he meant when he ‘‘estimated
    that the temperature in the apartment when . . . Tom-
    kunas entered was 300 [to 400] degrees . . . .’’ DeHaan
    responded, ‘‘I’m talking about the hot gas layer tempera-
    ture . . . .’’ DeHaan then explained that, in his view,
    the hot gas layer never was much hotter than 400
    degrees because there was so little damage to the rug,
    which would have melted at much lower temperatures.
    Moreover, it does not take an expert in fire forensics
    to realize that a person would be severely burned from
    any kind of prolonged exposure to 400 degree tempera-
    tures. To suggest that a person of DeHaan’s professional
    standing and expertise was unaware of this fact is pat-
    ently unreasonable.66
    Accordingly, contrary to Justice Zarella’s assertions,
    it is not in the least surprising that Tomkunas was not
    burned when he first crawled into the apartment, partic-
    ularly in light of his testimony that he was on his hands
    and knees the entire time, intentionally staying below
    the hot gas layer. As Corry himself stated, temperatures
    are always much hotter the higher up you go in a room,
    which is why children are told to crawl on their hands
    and knees in a fire. In this way, Corry explained, they
    may avoid injury, even in situations where, if they were
    to stand up, they could be severely burned or killed.
    Indeed, the entire issue of whether it was 400 degrees
    at floor level when Tomkunas entered the victim’s apart-
    ment seems little more than a construct, inserted into
    the proceedings by Corry two months after DeHaan
    had testified. As we previously indicated, Corry stated
    that, after listening to DeHaan’s testimony, he went
    back to the drawing board in an effort to refute it. What
    he came up with, it appears, was the notion that DeHaan
    had stated that it was 400 degrees at floor level when
    the firefighters entered the apartment, and that the tem-
    perature obviously could not have been that high
    because none of the firefighters was burned. Specifi-
    cally, Corry stated that ‘‘DeHaan said [it was] 400
    degrees. That’s what we were investigating.’’ Corry fur-
    ther stated that, ‘‘if it was 400 degrees at the floor, [the
    fire] would have burned [the firefighters], and it didn’t.’’
    Notably, on cross-examination, Corry admitted that it
    could very well have been 400 degrees in the hot gas
    layer when Tomkunas entered the apartment. Corry
    explained that his only point was that it could not have
    been 400 degrees at floor level because none of the
    firefighters was burned. Indeed, it bears emphasis that
    Corry’s acknowledgment that the temperature in the hot
    gas layer could have been 400 degrees when Tomkunas
    arrived fully supports DeHaan’s estimate of the fire’s
    burn time, which, as we previously discussed, was pred-
    icated on hot gas layer temperatures being in the range
    of 300 to 400 degrees.
    In a similar vein, Justice Zarella asserts that DeHaan’s
    burn time estimate is unworthy of credit because it is
    predicated on DeHaan’s mistaken belief that the heat
    prevented Tomkunas from crossing the threshold of the
    victim’s apartment when he first arrived. Specifically,
    Justice Zarella argues that DeHaan appears not to have
    been aware that Tomkunas was able to crawl several
    feet into the apartment before being forced out by the
    heat, which likely affected DeHaan’s calculation of the
    entry level temperature. We disagree with Justice Zarel-
    la’s view of the record, which clearly reflects the fact
    that DeHaan read all of Tomkunas’ trial testimony and
    was fully aware that Tomkunas entered the victim’s
    apartment briefly, on his hands and knees, before being
    forced out by the heat. In fact, not only did DeHaan
    testify that Tomkunas entered the apartment on his
    hands and knees before being forced out, his written
    report on the fire, which was entered into evidence as
    a full exhibit, provides in relevant part: ‘‘[Tomkunas]
    kicked the door open to find heavy smoke and consider-
    able heat within. Without protective equipment, he
    crawled on hands and knees into the front entry far
    enough to see flaming fire on the couch against the left
    wall but was forced out by the conditions.’’ (Emphasis
    added.) In light of this evidence, Justice Zarella’s asser-
    tion that DeHaan was unaware that Tomkunas actually
    proceeded a short distance into the apartment when
    he first arrived is simply wrong.
    We are also perplexed by Justice Zarella’s insistence
    that, ‘‘[a]t no time during his [trial] testimony did [Tom-
    kunas] say that he was prevented from even entering
    the apartment as a result of the heat.’’ Justice Zarella
    contends that, after his initial entry, Tomkunas left the
    apartment only because ‘‘the heat and smoke conditions
    convinced him that rescue efforts would be ‘a lot easier’
    if the apartment was vented,’’ not because it was too
    hot to remain inside. As with Justice Zarella’s other
    factual arguments, this contention is contradicted by
    the record. When initially asked whether he was able
    to remain in the apartment after kicking in the front
    door, Tomkunas responded: ‘‘No, I was not. . . . It was
    too hot and smoky. I had to go . . . out.’’ He also stated
    that the heat and the smoke, which he described as
    ‘‘very, very dangerous,’’ ‘‘forced [him] to retreat . . . .’’
    Tomkunas further stated that, before attempting a sec-
    ond entry, it was necessary to ‘‘smash a window . . .
    to remove the heat and smoke and hot gasses from the
    building.’’ In arguing that the heat was not so great as
    to prevent Tomkunas from remaining in the building,
    Justice Zarella relies on a single statement by Tomku-
    nas: ‘‘If I could get somebody to vent, it was a lot easier.’’
    The broader context of that statement, however, as
    reflected in the following colloquy between the state
    and Tomkunas, which Justice Zarella has omitted from
    his dissenting opinion, leaves no doubt that Tomkunas,
    upon his arrival at the scene, was forced from the apart-
    ment due to the high heat and dangerous smoke condi-
    tions inside the apartment:
    ‘‘Q. Now, with respect to the volume of smoke, how
    would you characterize that when you first entered—
    what [was] the volume of smoke . . . in the apart-
    ment?
    ‘‘A. If I could use a technical term, ‘well charged.’
    ‘‘Q. And is that a term of significance as far as fire-
    fighting is concerned?
    ‘‘A. Yes it is.
    ‘‘Q. And how would you explain it to us?
    ‘‘A. A building that’s well charged with smoke is so
    full, there’s no—there’s actually little to no oxygen left
    in the building, and it’s a very, very dangerous situation.
    ‘‘Q. Dangerous to whom . . . ?
    ‘‘A. It would be dangerous to anybody in there and
    anybody who attempted to get in without proper pre-
    cautions.
    ‘‘Q. And you’ve indicated that the heat and the smoke
    forced you to retreat after some fifteen to twenty sec-
    onds. Is that correct?
    ‘‘A. That’s correct.
    ***
    ‘‘Q. Can you tell us why you retreated?
    ‘‘A. It was just too hot and too smoky. If I could get
    somebody to vent, it was a lot easier.’’
    Justice Zarella also argues that DeHaan’s testimony
    ‘‘that entry level temperatures were too high for Tomku-
    nas even to enter the apartment conflicts with DeHaan’s
    own testimony about the fire’s energy level’’ because
    ‘‘DeHaan testified that the fire would have produced a
    relatively small amount of heat and would have been
    approachable, even at its maximum intensity. DeHaan
    explained that the fire’s intensity ‘would probably be
    about the same as an average fireplace fire. It would
    be pumping a lot of heat into this room, but not so
    much that you couldn’t—you couldn’t approach it, for
    instance, to try to extinguish it . . . .’ ’’ (Emphasis
    omitted.) For reasons that we previously discussed, we
    reject Justice Zarella’s assertion that DeHaan testified
    that entry level temperatures prevented Tomkunas from
    entering the apartment at all when he first arrived. We
    also do not perceive any conflict between DeHaan’s
    testimony regarding the fire’s energy level and his esti-
    mate of entry level temperature. When DeHaan likened
    the fire’s energy level to that of an average fireplace
    fire, it was solely in an attempt to explain why there
    was so little damage to the victim’s apartment. DeHaan
    attributed the lack of damage in the apartment to the
    heat release rate of the fire, which he estimated never
    exceeded 250 to 350 kilowatts. DeHaan explained that
    a 350 kilowatt fire will produce temperatures in the
    range of 400 degrees. DeHaan further explained that,
    if there had been more ventilation inside the apartment,
    ‘‘a love seat like [the one in the victim’s apartment] is
    capable of generating [a] maximum heat release rate
    . . . in the order of 2000 kilowatts. In other words, it
    would have been six times [as] big [of a] fire; the fire
    would have basically reached the ceiling, actually
    spread across the ceiling, and it might have actually
    brought this whole room to involvement.’’ If this had
    occurred, DeHaan testified, it would not have been pos-
    sible for a firefighter simply to walk up to the fire and
    extinguish it. In contrast, a firefighter easily could have
    approached the fire on the victim’s couch, assuming,
    of course, that he or she was wearing appropriate attire,
    because the fire’s heat release rate never exceeded 350
    kilowatts, and the fire never spread beyond the couch
    to other materials in the room. Indeed, it was undis-
    puted that, with proper clothing and breathing equip-
    ment, which Tomkunas did not have with him when he
    arrived, he would have had no difficulty approaching
    and extinguishing the fire upon his initial entry.67
    In addition to his primary arguments, Justice Zarella
    also asserts that the testimony of Igoe, Roy and Christo-
    pher Marvin, three fire investigators who were at the
    crime scene on the night of the murder, supports the
    third habeas court’s determination that it was not possi-
    ble to ascertain the fire’s approximate burn time. We
    disagree with Justice Zarella’s interpretation of the testi-
    mony of these witnesses, all of whom stated unequivo-
    cally that they did not perform the type of investigation
    that would have enabled them to estimate when the
    fire started. For example, one of the witnesses, Roy,
    testified that he had no recollection of the events of
    that evening and that his role at the time was limited
    to moving furniture, sweeping the floor, and the like.
    Although we also dispute the remainder of Justice Zarel-
    la’s factual contentions, we need not belabor the matter
    further because, even if we were to assume that a jury
    reasonably could find Corry’s testimony more persua-
    sive than that of DeHaan and Kelder, that would not
    alter our conclusion that the third habeas court’s materi-
    ality determination was incorrect as a matter of law.
    This is so because, as we have indicated, there is abso-
    lutely nothing in DeHaan’s or Kelder’s testimony, or
    anywhere else in the record, that would permit the
    conclusion that a jury reasonably could not credit
    their testimony.68
    Having addressed Justice Zarella’s claims, we now
    turn our attention to the second component of the test
    for materiality under Brady and Strickland, that is,
    consideration of the petitioner’s expert testimony in
    light of the original trial evidence, for the purpose of
    determining whether our confidence in the verdict is
    undermined by that expert testimony.69 As we explain,
    the answer to that question is most certainly ‘‘yes.’’
    C
    Original Trial Evidence
    It is beyond dispute that the state’s case against the
    petitioner rested almost entirely on his incriminating
    statements, without which the state would have been
    unable to obtain a warrant based on probable cause,
    let alone a conviction of capital felony.70 There was
    no physical evidence connecting the petitioner to the
    crime, except for the fact that, along with approximately
    one third of the male population, including another
    suspect in the present case,71 the petitioner is a secretor
    with type A blood, the same blood type as the person
    who left a semen stain on the victim’s bedspread.72 The
    state also sought to link the petitioner to the victim’s
    murder because he previously had undergone a vasec-
    tomy, and no sperm were found in the semen stain. At
    trial, however, Beryl Novitch, the lead criminalist at the
    state forensic laboratory who examined the stain at
    issue, testified that it was not at all unusual to obtain
    a semen sample containing no sperm even though the
    donor’s semen contains sperm.73
    With respect to the petitioner’s statements, the peti-
    tioner alleged in his first habeas petition that his confes-
    sion was false, and, in furtherance of this claim, he
    maintained that he was unable to knowingly, intelli-
    gently and voluntarily participate in the police interro-
    gation because of his mental impairment. The first
    habeas court dismissed this claim upon concluding,
    inter alia, that, because ‘‘[t]he petitioner’s real argument
    . . . is that his statements were involuntary [and there-
    fore inadmissible] under the federal constitution’’;
    Lapointe v. Warden, Superior Court, judicial district
    of Hartford, Docket No. CV-97-0571161 (September 6,
    2000) (Freed, J.); the claim was barred by this court’s
    determination, in connection with the petitioner’s direct
    appeal from the judgment of conviction, that the trial
    court reasonably had concluded that the petitioner’s
    admissions were voluntary. State v. Lapointe, supra,
    
    237 Conn. 703
    ; see footnote 16 of this opinion. For
    purposes of evaluating the strength of the state’s case
    against the petitioner, however, the issue is not the
    voluntariness of the petitioner’s admissions—a thresh-
    old issue that concerns the admissibility of his state-
    ments—but, rather, whether a jury would find those
    statements trustworthy or reliable because they consti-
    tute a true and accurate reflection of the petitioner’s
    involvement in the victim’s murder.
    Relatively little was known about false confessions
    at the time of the petitioner’s criminal trial. See, e.g.,
    State v. Perea, 
    322 P.3d 624
    , 641 (Utah 2013) (observing
    that, ‘‘[i]n the 1990s, little research had been conducted
    on the phenomenon of false confessions’’). Signifi-
    cantly, since then, an abundance of social science
    research about the phenomenon has been conducted,74
    and, due largely to advances in DNA testing, scores of
    false confessions have been identified. These develop-
    ments prompted the United States Supreme Court
    recently to observe: ‘‘By its very nature, custodial police
    interrogation entails inherently compelling pressures.75
    . . . Indeed, the pressure of custodial interrogation is
    so immense that it can induce a frighteningly high per-
    centage of people to confess to crimes they never com-
    mitted.76 Corley v. United States, 
    556 U.S. 303
    , 321, 
    129 S. Ct. 1558
    , 
    173 L. Ed. 2d 443
     (2009) . . . .’’ (Citations
    omitted; footnotes added; internal quotation marks
    omitted.) J. D. B. v. North Carolina,         U.S.    , 
    131 S. Ct. 2394
    , 2401, 
    180 L. Ed. 2d 310
     (2011). Moreover,
    it is now ‘‘well established that people with mental
    illness and mental deficiencies are more prone than
    others to confess falsely, either because of an inordinate
    desire to accommodate and agree with authority figures
    or because they are unable to cope with the psychologi-
    cal intensity of the police interrogation, which fre-
    quently includes the use of sophisticated ploys and
    techniques designed to weaken the suspect’s resolve.’’
    State v. Edwards, 
    299 Conn. 419
    , 446, 
    11 A.3d 116
     (2011)
    (Palmer, J., concurring); see also, e.g., B. Garrett, Con-
    victing the Innocent: Where Criminal Prosecutions Go
    Wrong (2011) p. 38 (noting that of forty DNA exonera-
    tions discussed, 76 percent of exonerees who falsely
    confessed were either juveniles—33 percent—or men-
    tally disabled—43 percent).
    One cannot evaluate the strength of the state’s evi-
    dence against the petitioner in the present case incogni-
    zant of the fact that our awareness of the phenomenon
    of false confessions has increased vastly in the nearly
    twenty-five years since the petitioner’s conviction. One
    also cannot read the petitioner’s statements to the
    police, particularly in light of the testimony of the offi-
    cers who elicited them, and not be left with serious
    concerns about their reliability.
    First, as we previously indicated, the record reveals
    that the petitioner suffers from a mental impairment.
    Although the state argued at his criminal trial that he
    was not ‘‘retarded’’ in a technical sense, it did not dis-
    pute that Dandy-Walker syndrome, a congenital malfor-
    mation of the skull, had left the petitioner with such
    serious cognitive deficits that many people who knew
    him simply assumed that he was ‘‘retarded . . . .’’77
    According to his school records, the petitioner was
    eighteen years of age when he finally completed the
    eighth grade, which was as far as he progressed in
    school.78 Among other deficits, Dandy-Walker syndrome
    probably caused the petitioner to be slow and unsteady
    on his feet, and he also was severely visually impaired
    from a young age, and later became hearing impaired.
    In an effort to demonstrate the severity of the peti-
    tioner’s mental impairment, his trial counsel called
    numerous witnesses to testify at the petitioner’s crimi-
    nal trial and at a hearing on his motion to suppress.
    Without exception, they described the petitioner as a
    quirky, gullible and childlike man whose funny appear-
    ance and simplemindedness made him the constant butt
    of jokes.79
    Following his arrest, the petitioner also was exam-
    ined by a number of psychiatrists and psychologists,80
    all of whom testified at the petitioner’s trial and
    described him in remarkably similar terms: slow-witted;
    childlike; compliant; genial; guileless; talkative; and
    very concrete and inflexible in his reasoning. None of
    them observed any signs of psychosis or mood disorder.
    All of them seemed to agree, however, that, because
    of the nature of his cognitive impairment, the petitioner
    was quite capable of confessing to a murder that he did
    not commit. Donald R. Grayson, a psychiatrist, wrote
    in one report that the petitioner ‘‘reportedly signed a
    confession . . . in an attempt to extricate himself from
    a stressful situation and to be able to go to the bathroom
    and get water. Hearing this explanation from the aver-
    age person would not have seemed believable to [me].
    However, after spending a few hours with [the peti-
    tioner], [I] could not help but find his explanation quite
    believable, in view of his concrete approach to life and
    his apparent[ly] limited intellectual capacity.’’81
    According to Anne M. Phillips, a clinical psychologist
    in private practice, the petitioner presents ‘‘consider-
    ably younger than his chronological age’’ and has a
    ‘‘[f]ull [s]cale IQ [of] 92,’’ which puts him in the ‘‘lower
    end of the average range of intelligence . . . .’’ Phillips
    concluded that neurological damage from Dandy-
    Walker syndrome, however, prevented the petitioner
    from fully accessing his intelligence. According to Phil-
    lips, the petitioner’s ‘‘expressive vocabulary is . . .
    fairly weak, which may reflect an aphasic difficulty
    related to his historical neurological problems. His lim-
    ited vocabulary may also contribute to the interpersonal
    impression of much lower overall intellectual ability
    which [he] creates. He is not good at expressing his
    thoughts or feelings and is apt to be awkward and rather
    childlike in his expression. [The petitioner] also appears
    limited in receptive language, partially due to acuity
    problems, and partially to comprehension limitations.
    As a result, he is inclined to sometimes respond arbi-
    trarily to conversation or questions [that] he does not
    fully understand. [The petitioner also] tends to be quite
    concrete and inflexible in his reasoning, understanding
    situations in a narrow and set way, and having consider-
    able difficulty adopting alternative interpretations of
    events, or even making sense of unfamiliar events.’’ At
    trial, Phillips testified that ‘‘interpersonally, [the peti-
    tioner] comes across as a funny little guy, kind of odd,
    and, when he responds to questions in a very literal
    fashion—[such as] when you ask him who his mother
    is, [and] he says, ‘Mrs. Lapointe,’ or when you ask him
    about his childhood, and he says, ‘I was a boy’—there
    is a sense of ‘H[uh]?’ ’’82
    With respect to the statements to the police, although
    the nine hour interrogation was not recorded, the testi-
    mony of the three officers who conducted it provides
    significant insight into the tactics that were used and
    the petitioner’s state of mind during questioning. Upon
    his arrival at the Manchester police station, the peti-
    tioner initially was questioned by Lombardo. According
    to Lombardo, as soon as the petitioner entered the
    interrogation room, Lombardo told the petitioner that
    there was no question in his mind that the petitioner was
    responsible for the victim’s murder. Lombardo testified
    that the petitioner did not react to the accusation as
    Lombardo had expected, that is, with a strong or loud
    objection; instead, the petitioner just sat there pas-
    sively, shaking his head and quietly saying, ‘‘[n]o
    . . . .’’83 Lombardo stated that the petitioner immedi-
    ately asked him ‘‘if it would be possible for someone
    to commit a crime and then not remember it . . . .’’
    According to Lombardo, approximately one hour into
    the interrogation, the petitioner slumped in his seat,
    breathed heavily, and said, ‘‘I killed her.’’ The petitioner
    then asked Lombardo whether it was possible ‘‘that he
    committed the crime, and then . . . blacked out and
    just [did not] remember it.’’ Although Lombardo told
    the petitioner that it was possible, he thought the peti-
    tioner’s question was ‘‘just another ploy’’ to avoid telling
    the truth. According to Lombardo, after he told the
    petitioner that a person could commit a crime and not
    remember it, the petitioner gave the first of three sworn
    statements confessing to the victim’s murder. In it, he
    stated: ‘‘On March 8, 1987, I was responsible for [the
    victim’s] death and it was an accident. My mind went
    blank.’’
    After the first statement was signed and notarized,
    Lombardo allowed the petitioner to go to the bathroom.
    At this point, Lombardo was aware that he did not
    have enough evidence to charge the petitioner with any
    crime. When the petitioner returned to the interrogation
    room, Lombardo told him that he needed to provide
    more details about the crime. According to Lombardo,
    the petitioner stated, ‘‘[s]he wouldn’t cooperate with
    me so I killed her,’’ but then immediately ‘‘denied that
    he had committed the crime and told [Lombardo] that
    the only reason . . . he had given [the earlier] state-
    ment was because he [thought Lombardo] wouldn’t let
    him go to the bathroom unless he [did] . . . .’’ Lom-
    bardo then began to put more pressure on the peti-
    tioner. For example, he told the petitioner that a witness
    had seen him walking his dog near the victim’s apart-
    ment one hour before the fire was reported84 and that
    the police had found his fingerprints on the murder
    weapon, neither of which was true. According to Lom-
    bardo, the petitioner ‘‘became quiet and kind of slumped
    down in his chair when confronted . . . with that infor-
    mation.’’ Immediately thereafter, the petitioner gave a
    second sworn statement, in which he admitted to the
    following: ‘‘On March 8, 1987, I went to visit [the victim]
    with my wife and son. We left the apartment in the late
    afternoon and went home. I left my house sometime
    after that to take the dog for a walk. I was at [the
    victim’s] apartment with the dog. We were both there
    together and the time was right. I probably made a pass
    at her and she said no. So I hit her and I strangled her.
    If the evidence shows that I was there, and that I killed
    her, then I killed her, but I don’t remember being there.
    I made a pass at [the victim] because she was a nice
    person and I though[t] that I could get somewhere with
    her. She was like a grandmother to me, that I never had.’’
    Following this second statement, the petitioner
    became visibly despondent. According to Lombardo,
    when he pressed him for more details about the crime,
    the petitioner stated, ‘‘[i]f I tell you everything, then the
    whole town’s going to find out and know that I am a
    sex fiend.’’ He also told Lombardo that Martin and their
    son were the only family that he had and that, if Martin
    found out that he had killed her grandmother, she would
    leave him. According to Lombardo, the petitioner stated
    that ‘‘he couldn’t bear the thought of losing his family
    and that, if his family did leave him, he might as well
    be dead.’’ Thereafter, Lombardo left the room to speak
    to Morrissey, who had just returned from interviewing
    Martin. At this time, Lombardo decided that it would
    be best for Morrissey to continue the interrogation,
    which he did.
    According to Morrissey, his job was ‘‘to get more
    information’’ from the petitioner about the murder.
    Toward that end, he began the interview by informing
    the petitioner that he had just come from speaking to
    Martin, that she had been informed of his role in the
    victim’s death, and that Martin wanted him to cooperate
    with the police. The petitioner again denied any involve-
    ment in the murder, stating repeatedly that he must
    have ‘‘black[ed] out’’ because he simply had no memory
    of the crime. In an effort to ‘‘refresh his memory of
    what happened,’’ Morrissey repeatedly led the peti-
    tioner through the entire ‘‘sequence of events,’’ a pro-
    cess that, according to Morrissey, took several hours
    and considerable coaxing. When they were finished,
    Morrissey prepared a written statement for the peti-
    tioner to sign. In that statement, the third and final
    statement, the petitioner provided a more detailed
    account of his involvement in the murder: ‘‘[O]n Sunday
    March something I was at [the victim’s] apartment with
    my son . . . and my wife [Martin]. We visited from
    about [2 until 4] p.m. and then walked home. After being
    home [a while] I left to walk the dog. I then walked
    back up to [the victim’s] apartment and she invited me
    in. We each had a cup of coffee (I think [the victim]
    had tea) and I sat on the couch. I recall having my
    matches and my smoking pipe in my jacket pocket.
    ‘‘After my coffee I went into the bathroom (which is
    located off the bedroom). When I came out [the victim]
    was in the bedroom combing her hair. She was wearing
    a pink house coat type of outer wear with no bra. (I
    could see her breasts when she bent over). I grabbed
    her with my hand around her waist area. When I did
    that she pushed me. I threw her on the bed and took
    off her underwear because I wanted to have intercourse
    with her. I got my penis inside her for a few strokes
    and then pulled out and masturbated. I did [ejaculate]
    on the bed spread when I was finished. I had already
    thrown her underwear on the right side of the bed.
    After the sex she said she was going to tell my wife
    . . . . I then went to the kitchen and got a steak knife
    with a hard plastic brown handle and stabbed [the vic-
    tim] in the stomach while she was [lying] on the couch.
    The rest of the incident I do not recall although I admit
    to having strangled her.’’ According to Morrissey, the
    petitioner indicated that he strangled the victim by plac-
    ing both of his hands around her neck.
    The petitioner signed his third statement at approxi-
    mately 12:30 a.m. on July 5, 1989. At that time, Morrissey
    and Lombardo asked Brooks, their commanding officer,
    to speak to the petitioner because the petitioner contin-
    ued ‘‘to vacillate, and they wanted to see whether . . .
    [Brooks] could get him to [stop] doing that.’’ According
    to Brooks, the petitioner ‘‘would give a statement to
    [his officers], sign it, and then claim that he was only
    . . . giving back information that was given to him,
    only saying what he thought [the officers] wanted to
    hear . . . .’’ Brooks testified that the petitioner’s
    ‘‘recanting behavior had continued right to [the] end of
    [the interrogation],’’ and that Lombardo and Morrissey
    enlisted Brooks to speak to the petitioner because
    Brooks and the petitioner had a prior relationship, and
    the officers thought that Brooks could get the petitioner
    ‘‘to perhaps take a stand one way or the other.’’ When
    Brooks went into the interrogation room and spoke
    with the petitioner, the petitioner continued to vacillate
    and appeared extremely agitated. At approximately 1:20
    a.m., the petitioner was instructed to go home, and he
    did so. The petitioner would later testify that he does
    not know why he confessed except that he had to go
    to the bathroom, and because he wanted to go home.
    The petitioner also testified that Morrissey had told him
    that, if he did not cooperate with the police, Martin,
    his wife, could be charged with a crime, and their son
    would become a ward of the state, accusations that
    Morrissey has denied.85
    It is difficult to read the officers’ account of the peti-
    tioner’s statements in light of the other trial evidence
    without experiencing the sinking discomfort that comes
    with the realization that an injustice may have occurred.
    Indeed, no fair-minded person who is familiar with the
    evidence in the present case can read the petitioner’s
    statements and feel confident that they represent a true
    and accurate account of the victim’s murder by the
    person responsible for her death. The first statement—
    ‘‘I was responsible for [the victim’s] death and it was
    an accident’’ and ‘‘[m]y mind went blank’’—is totally
    devoid of incriminating detail. The second statement—
    ‘‘I probably made a pass at her and she said no,’’ and,
    ‘‘[i]f the evidence shows that I was there, and that I
    killed her, then I killed her, but I don’t remember being
    there’’—sounds more like the statement of a man who,
    having just been told by someone he trusts that there
    is incontrovertible proof that he sexually assaulted and
    murdered his wife’s grandmother, is trying to under-
    stand how he could have no memory of such a horrific
    event. Although the third statement is more specific,
    most of the details bear little resemblance to the actual
    crime scene evidence; see footnote 12 of this opinion;
    and those that do, in particular, the facts that presum-
    ably only the killer would know, have the ring of some-
    one confirming information (‘‘I did [ejaculate] on the
    bed spread when I was finished’’ and ‘‘I had already
    thrown her underwear on the right side of the bed’’)
    rather than conveying it.86
    The respondent raises several arguments why there
    would be no reasonable probability of a different result
    at a new trial notwithstanding the testimony of Martin
    and the petitioner’s burn time experts. We do not find
    the respondent’s arguments persuasive. For example,
    the respondent argues that a jury would be unlikely to
    credit Martin’s testimony because she did not inform
    the police, until she was questioned by Morrissey two
    years after the murder, that the petitioner had walked
    their dog on the day of the murder. The record reveals,
    however, that the petitioner did not become a suspect
    in the victim’s murder until two years after the murder,
    at which time Martin was interviewed for the first time
    about the petitioner’s whereabouts on the day in ques-
    tion. Indeed, the audio recording of Martin’s interview
    reveals, contrary to the respondent’s contentions, that
    a jury readily could conclude that, until that moment,
    it had never crossed Martin’s mind that her husband
    had any role in the victim’s murder.87
    The respondent also refers to certain facts that the
    state relied on at the petitioner’s criminal trial, most of
    which are set forth in this court’s decision in State v.
    Lapointe, supra, 
    237 Conn. 696
    –702, in which we
    rejected the petitioner’s claims on direct appeal, to sup-
    port the contention that there is no reasonable probabil-
    ity of a different result even if a jury were to consider the
    testimony of DeHaan, Kelder and Martin.88 For example,
    the respondent argues that, ‘‘before any information
    regarding a possible sexual assault became known to
    the police or the public, the [petitioner] stated in a
    conversation with . . . a friend of the Lapointe family
    . . . that ‘it was a shame they killed an old lady, but
    they didn’t have to rape her, too.’ ’’ 
    Id., 699
    . At trial, the
    petitioner testified that, on the night of the murder, he
    overheard someone at the hospital discussing the fact
    that the victim had been sexually assaulted. This is a
    perfectly plausible explanation as to how he knew about
    the sexual assault because Marvin, a Manchester volun-
    teer fire marshal, testified that he also had heard hospi-
    tal personnel speaking openly about the sexual assault.
    In addition, Elizabeth Martin, the victim’s daughter-in-
    law, testified that, on the morning after the murder,
    she called the Manchester Police Department and was
    informed by Brooks that the victim had been sexually
    assaulted. Elizabeth Martin stated that she immediately
    conveyed this information to Karen Martin and to her
    brother with instructions not to tell their father, the
    victim’s son, because she was afraid the news would
    make him emotionally distraught. Finally, within days
    of the victim’s murder, there was speculation in the
    newspaper that the victim had been sexually assaulted
    and that Frederick Merrill, a recently released convict
    who had committed a similar home invasion and sexual
    assault of a fifty-five year old woman just three days
    after the victim’s murder and three miles from the vic-
    tim’s apartment, also had sexually assaulted and killed
    the victim.89
    The respondent further argues that DeHaan’s and
    Kelder’s testimony would not have made a difference
    at the petitioner’s criminal trial because it is duplicative
    of the testimony of Marvin, who, according to the
    respondent, ‘‘assisted [the state fire marshal] in the
    investigation, and offered his own burn time estimate
    for the defense . . . .’’ Marvin’s estimate, the respon-
    dent maintains, ‘‘differed in no meaningful way’’ from
    the estimates provided by DeHaan and Kelder. In reli-
    ance on these assertions, the respondent contends that
    Marvin’s testimony, coupled with the petitioner’s testi-
    mony at trial that he was at home with his family
    between the hours of 7 and 8 p.m., compels the conclu-
    sion that the jury considered and rejected an alibi
    defense based on the probable burn time of the fire.
    This claim is wholly without merit. Marvin was not a
    professional firefighter much less a forensic fire expert;
    he was a volunteer firefighter who was called by the
    petitioner to testify that, on the night of the murder,
    he overheard hospital personnel discussing the fact that
    the victim had been sexually assaulted. It is true that,
    when asked on direct examination how long it might
    have taken for the fire to reach its maximum tempera-
    ture, Marvin estimated that the fire started about fifteen
    to twenty minutes prior to reaching its peak tempera-
    ture at around 8:10 p.m. Marvin qualified his answer,
    however, by stating that it was ‘‘extremely rough’’ and
    ‘‘real hypothetical,’’ undoubtedly because he was not a
    professional fire investigator. Indeed, on cross-exami-
    nation, Marvin admitted that he really had ‘‘no idea
    when the fire was set’’ and that his estimate of the fire’s
    maximum temperature was just ‘‘a guess . . . .’’ More
    important, however, the petitioner did not rely on Mar-
    vin’s estimate to support an alibi defense based on the
    fire’s burn time, or for any other purpose. In fact, to
    the extent that the petitioner sought to establish that
    he could not have murdered the victim because he was
    at home when the murder occurred, the petitioner never
    contended that his claim was supported by any burn
    time evidence. In light of the foregoing, it strains credu-
    lity to believe that the jury—entirely on its own, without
    any argument by the petitioner’s trial counsel or guid-
    ance from the trial court—would have considered an
    alibi defense based on Marvin’s rough and inexpert
    testimony concerning the time that it took for the fire
    to reach its maximum temperature.
    The respondent also relies on the testimony of Jean
    Strimike, the petitioner’s former neighbor, who testified
    that, after the petitioner became president of their four
    member condominium association, he memorized all
    of the association’s complex rules and bylaws, and was
    a stickler about enforcing the rules. Strimike stated that
    she and the petitioner got into a heated dispute over
    nonconforming flowers that she had planted in front
    of their building, and, after she refused to remove them,
    the petitioner stomped them into the ground. The most
    we can say about this evidence, which very much typif-
    ies the kind and quality of evidence that the state pre-
    sented at the petitioner’s criminal trial,90 is that it reveals
    that the petitioner is someone who could behave poorly
    on occasion. It clearly does not give rise to a reasonable
    inference that the petitioner was capable of cold
    blooded murder.91 Of course, the state will be free to
    seek to introduce this evidence at a new trial and, to
    the extent it is admissible, to rely on whatever probative
    value it may have.
    IV
    CONCLUSION
    The petitioner was forty-two years old when he alleg-
    edly committed one of the most brutal crimes in our
    state’s history—the rape, torture and murder of a
    defenseless eighty-eight year old woman, a person who,
    by all accounts, was like a grandmother to him.
    Although there is abundant evidence in the record con-
    cerning the petitioner’s simplemindedness, his peculiar-
    ities and his very rigid way of thinking, one searches the
    record in vain for evidence that he ever was physically
    violent, that he suffered from a mood disorder, psycho-
    sis, drug addiction or anything else that could explain
    why, after visiting the victim every Sunday for years,
    he suddenly went back to her apartment on the Sunday
    in question and brutally murdered her, without his wife
    noticing either that he had left their house or any change
    in his demeanor or appearance upon his return. Further-
    more, at the petitioner’s criminal trial, the state was
    not required to commit to any particular time frame for
    the murder, arguing only that it occurred sometime
    between 5:45 p.m., when the victim was last seen alive
    by Howard, her daughter, and 8:05 p.m., when she failed
    to answer Howard’s telephone calls. If, however, the
    original jury were to have heard and credited DeHaan’s
    and Kelder’s testimony that the fire was set between
    7:30 and 8:05 p.m., and if that jury also were to have
    heard and credited Martin’s testimony that the peti-
    tioner was at home with her watching television at that
    time, there is not just a reasonable probability of a
    different result, there is a near certainty of one. And,
    as we have explained, there simply is no reason why the
    jury reasonably could not have credited that testimony.
    The petitioner therefore has established, under Strick-
    land, that his first habeas counsel’s representation of
    him was constitutionally deficient due to counsel’s fail-
    ure to pursue a Brady claim founded on the state’s
    suppression of the Ludlow note because that nondisclo-
    sure deprived the petitioner of evidence establishing
    a complete and potentially compelling alibi, thereby
    gravely undermining the reliability of the verdict against
    him. Because the record demonstrates convincingly
    that the petitioner is burdened by an unreliable convic-
    tion, he is entitled to a new criminal trial.
    The judgment of the Appellate Court is affirmed.
    In this opinion ROGERS, C. J., and EVELEIGH and
    McDONALD, Js., concurred.
    * March 31, 2015, the date that this decision was released as a slip opinion,
    is the operative date for all substantive and procedural purposes.
    1
    The petitioner was convicted of capital felony, arson murder, felony
    murder, murder, arson in the first degree, assault in the first degree, sexual
    assault in the first degree, sexual assault in the third degree, and kidnapping
    in the first degree. See State v. Lapointe, 
    237 Conn. 694
    , 695, 
    678 A.2d 942
    ,
    cert. denied, 
    519 U.S. 994
    , 
    117 S. Ct. 484
    , 
    136 L. Ed. 2d 378
     (1996). His
    convictions of arson murder, felony murder, murder, sexual assault in the
    first degree, and sexual assault in the third degree were combined with
    his capital felony conviction for sentencing purposes ‘‘to comport with
    constitutional double jeopardy protections.’’ 
    Id.,
     695 n.1.
    2
    Because the state sought the death penalty in connection with the capital
    felony charge, a penalty phase hearing was conducted in accordance with
    General Statutes (Rev. to 1987) § 53a-46a. The jury found the existence of
    a mitigating factor, and, pursuant to § 53a-46a (f), the petitioner received a
    sentence of life imprisonment without the possibility of release.
    3
    To establish that a new trial is required because of a Brady violation,
    a defendant must establish, first, that the state failed to disclose evidence,
    second, that that evidence is exculpatory, that is, it is favorable to the
    defendant, and, third, that the evidence is material. See, e.g., Adams v.
    Commissioner of Correction, 
    309 Conn. 359
    , 369, 
    71 A.3d 512
     (2013). To
    establish materiality, the defendant must demonstrate that there is a reason-
    able probability that, if the jury had considered the evidence, the result of
    the trial would have been different. See id., 370. In this context, a reasonable
    probability is a probability sufficient to undermine confidence in the out-
    come of the original trial. Id., 370–71. Ultimately, materiality is a mixed
    question of law and fact that is subject to this court’s plenary review. E.g.,
    State v. Ortiz, 
    280 Conn. 686
    , 720, 
    911 A.2d 1055
     (2006). We discuss these
    requirements more fully in part II of this opinion.
    4
    As we discuss more fully hereinafter, under Strickland, a defendant can
    prevail on a claim of ineffective assistance of counsel only if he can establish
    both that counsel’s performance fell below an objective standard of reason-
    ableness and that the deficient performance prejudiced the defendant
    because there is a reasonable probability that, but for counsel’s substandard
    performance, the result of the proceeding would have been different. See,
    e.g., Johnson v. Commissioner of Correction, 
    288 Conn. 53
    , 63, 
    951 A.2d 520
     (2008). A reasonable probability is a probability sufficient to undermine
    confidence in the outcome. See, e.g., Adams v. Commissioner of Correction,
    
    309 Conn. 359
    , 370–71, 
    71 A.3d 512
     (2013).
    5
    The Appellate Court affirmed the judgment of the third habeas court in
    part, upholding that court’s denial of the petitioner’s claim of actual inno-
    cence. See Lapointe v. Commissioner of Correction, supra, 
    138 Conn. App. 468
    , 480. The Appellate Court also dismissed in part the petitioner’s appeal.
    See id., 480.
    6
    The procedural background and the vast majority of the historical facts
    that follow are not disputed. To the extent that additional facts are relevant
    to our disposition of the parties’ claims, we identify them in part III of
    this opinion.
    7
    Dandy-Walker syndrome is a congenital brain malformation known to
    cause poor motor skills and, in most cases, cognitive impairment. See gener-
    ally Lapointe v. Warden, Superior Court, judicial district of Hartford, Docket
    No. CV-97-0571161 (September 6, 2000) (Freed, J.).
    8
    A secretor is a person who secretes blood type antigens into his bodily
    fluids. See Stedman’s Medical Dictionary (28th Ed. 2006) p. 1739.
    9
    Evidence adduced at the petitioner’s criminal trial established that 41
    percent of the population have type A blood and that 80 percent of the
    population are secretors.
    10
    Postconviction DNA testing revealed, however, that the pubic hair con-
    tained mitochondrial DNA that did not match that of the victim or the
    petitioner and that the gloves also contained DNA that did not match that
    of the victim or the petitioner.
    11
    Originally, Ludlow was the lead investigator in the case.
    12
    For example, the petitioner stated that he had stabbed the victim once
    in the stomach while she was lying on the couch; in fact, the killer stabbed
    the victim eleven times while she lay on her bed, and all but one of the stab
    wounds were to the victim’s back. Although the petitioner told Morrissey
    that he had strangled the victim manually, the evidence indicated that she
    had been asphyxiated by pressure to the right side of her neck from a
    blunt object. The petitioner also stated that the victim was wearing a pink
    nightgown that exposed her breasts, but no such article of clothing was
    recovered from the crime scene. Rather, the evidence indicated that, at the
    time of the attack, the victim was wearing pants, a blouse and a blue sweater,
    which the perpetrator forcibly removed. In addition, in the affidavit in sup-
    port of the warrant for the petitioner’s arrest, Lombardo noted that the
    petitioner also ‘‘was inconsistent when talking about the ligatures that were
    tied around [the victim’s] neck and arms.’’ According to Lombardo, the
    petitioner ‘‘first said that he had bound [the victim] with rope that he had
    brought . . . from home. The evidence showed that [the victim] had been
    bound with articles of clothing from her closet. [The] [p]etitioner did, how-
    ever, recant his statement about the rope later in the interview.’’
    13
    These details were: (1) a semen stain was recovered from the victim’s
    bedspread; (2) the victim’s underwear had been thrown to the right side of
    the bed; and (3) the victim was stabbed with a steak knife with a hard
    plastic handle.
    14
    The state argued at trial that the petitioner conducted himself in that
    manner because he was stalling for time before summoning help.
    15
    In support of his motion to suppress the incriminating statements, the
    petitioner claimed, first, that he never was advised of his rights under
    Miranda v. Arizona, 
    384 U.S. 436
    , 
    86 S. Ct. 1602
    , 
    16 L. Ed. 2d 694
     (1966),
    even though he was in police custody when he made the statements and,
    second, that the statements were involuntary because they were the product
    of police coercion. See Lapointe v. Commissioner of Correction, supra, 
    237 Conn. 702
    –703. The trial court found that the petitioner was not in custody
    when he was questioned, and, consequently, Miranda warnings were not
    required. 
    Id., 703
    . The trial court further found that, in fact, the petitioner
    had been advised of his rights in accordance with Miranda and that he
    knowingly and intentionally waived those rights. 
    Id.
     The trial court also
    found that the petitioner’s statements were made voluntarily and were not
    the product of police pressure. 
    Id.
    16
    This court agreed with the state that the trial court properly had deter-
    mined that the petitioner was not in custody when he made the statements
    and that the statements were made voluntarily. Lapointe v. Commissioner
    of Correction, supra, 
    237 Conn. 703
    .
    17
    The petitioner also had alleged: ‘‘(1) actual innocence premised on [his]
    inability . . . physically and intellectually to carry out and to conceal the
    crimes [of] which he had been convicted; (2) prosecutorial impropriety
    [stemming from the suppression of] a notebook that contained Lombardo’s
    notes from the homicide investigation; (3) discrimination by the state on the
    basis of the petitioner’s physical and mental disabilities; [and] (4) ineffective
    assistance of trial counsel . . . for their failure, inter alia, to procure the
    Lombardo notebook, to retain appropriate experts for the defense at trial
    and to argue that men’s gloves and certain hairs of unknown origin that
    had been found at the crime scene demonstrated that the petitioner was
    innocent of the charged crimes . . . .’’ Lapointe v. Commissioner of Correc-
    tion, supra, 
    138 Conn. App. 459
    . The petitioner further alleged ineffective
    assistance of trial counsel on the basis of their failure to present a third-
    party culpability defense predicated on the testimony of witnesses who, on
    the night of the murder, saw a man, bearing no resemblance to the petitioner,
    flee from the crime scene area in a disheveled condition at approximately
    8 p.m., shortly before the fire was reported.
    18
    In accordance with this testimony, the petitioner claimed in his second
    habeas petition that the Ludlow note was exculpatory both for the substance
    of the information that it contained about the minimum possible burn time
    and because that information would have prompted the petitioner’s trial
    counsel to consult a burn time expert and to employ a different trial strategy.
    According to the petitioner, this strategy would have prompted trial counsel
    to call Martin as a witness and to focus on an alibi defense predicated on
    her testimony and the testimony of a burn time expert as to how long the
    fire burned.
    19
    The Appellate Court viewed the evidence in the light most favorable to
    the petitioner because the second habeas court had dismissed the habeas
    petition inasmuch as the petitioner ‘‘failed to establish the prima facie ele-
    ments of his claims.’’ Lapointe v. Commissioner of Correction, supra, 
    113 Conn. App. 388
    .
    20
    It would appear that, under the Appellate Court’s assessment of the
    evidence, Martin’s testimony alone was exculpatory because, considering
    that testimony most favorably to the petitioner, she placed him at home
    during the entire period within which the victim’s murder could have been
    committed. It also appears, however, that, in the view of the Appellate Court,
    the minimum burn time reflected in the Ludlow note buttressed that alibi
    evidence. See Lapointe v. Commissioner of Correction, supra, 
    113 Conn. App. 392
    .
    We note, in addition, that the Appellate Court also agreed with the peti-
    tioner that the second habeas court improperly concluded, albeit without
    explanation, that the petitioner had not made a prima facie showing that
    first habeas counsel’s representation of the petitioner was constitutionally
    deficient on the basis of his failure to allege ineffective assistance of the
    petitioner’s trial counsel as a result of their failure to utilize certain evidence
    to prove the unreliability of the petitioner’s confessions. See id., 402. In
    particular, the petitioner had maintained in his second habeas petition that
    first habeas counsel’s representation of the petitioner was ineffective in that
    he failed to allege that, in closing argument, trial counsel improperly failed
    (1) to argue that the petitioner’s statement describing the clothes that the
    victim was wearing at the time of the attack did not match the crime scene
    evidence, (2) to argue that a pubic hair recovered from the victim’s sweater,
    which presumably was left by the actual killer, could not be linked to the
    petitioner, (3) to argue that a pair of men’s gloves recovered from the crime
    scene, which had no connection to the petitioner or the victim, was likely
    left by the actual killer, (4) to emphasize that the petitioner’s statement that
    he manually strangled the victim was inconsistent with the actual method
    of strangulation, namely, asphyxiation by pressure to the right side of the
    victim’s neck with a blunt object, and (5) to emphasize that the petitioner’s
    statement that he had stabbed the victim on the couch did not correlate to
    the physical evidence indicating that the victim had been stabbed on the bed.
    Id., 399–401. The Appellate Court concluded, contrary to the determination of
    the second habeas court, that these claims, taken together, were sufficient
    to establish a prima facie case of ineffective assistance of trial counsel, and,
    therefore, the court remanded the case to the habeas court for further
    proceedings on that claim, as well. See id., 402, 404.
    21
    The third habeas court permitted the petitioner to amend his second
    habeas petition to include a claim of actual innocence based on newly
    discovered DNA evidence. ‘‘The [resulting] operative three count complaint
    set forth the following three claims: (1) [First habeas counsel] provided
    ineffective assistance . . . by failing to raise as an issue the state’s suppres-
    sion of its arson expert’s opinion that the burn time of the fire set in
    the victim’s apartment was between ‘30–40 mins. Poss.’; (2) [First habeas
    counsel] provided ineffective assistance . . . by failing to prove that Culli-
    gan and Cosgrove, the petitioner’s trial counsel, provided ineffective assis-
    tance . . . by failing to utilize available evidence to demonstrate the factual
    unreliability of the petitioner’s inculpatory statements to the police; and (3)
    the petitioner was actually innocent of the crimes [of] which he was con-
    victed as evidenced by DNA testing on gloves and a pubic hair collected at
    the crime scene.’’ Lapointe v. Commissioner of Correction, supra, 
    138 Conn. App. 462
    .
    22
    The petitioner also called Martin as a witness at the third habeas trial.
    Although she had considerable difficulty recalling with any degree of accu-
    racy events that had occurred on the day of the victim’s murder some
    twenty-three years earlier, she stated in no uncertain terms that all of the
    statements that she had made about the matter during that time period,
    including her 1987 statement immediately following the murder, her 1989
    tape-recorded statement to Morrissey, and her 1992 suppression hearing
    testimony, were completely truthful. Those statements make clear that, on
    the night of the murder, the petitioner was at home with Martin and their son
    from 7 p.m. until approximately 8 p.m., when Howard asked the petitioner to
    go to the victim’s home to check on the victim.
    23
    All references to temperature in this opinion are to the Fahrenheit scale.
    24
    As we explain more fully in part III A of this opinion, the record reveals
    that, contrary to Corry’s assertions, DeHaan did not testify either that the
    fire was a high energy fire or that the floor temperature inside the victim’s
    apartment was 400 degrees when firefighters entered.
    25
    The third habeas court described the Ludlow note as ‘‘potentially’’ excul-
    patory in light of the Appellate Court’s conclusion that, contrary to the
    determination of the second habeas court, the petitioner had indeed made
    out a prima facie case that the note was exculpatory for purposes of Brady.
    See Lapointe v. Commissioner of Correction, supra, 
    113 Conn. App. 392
    .
    Nevertheless, in light of the Appellate Court’s conclusion, it appears that
    the respondent was entitled, on remand to the third habeas court, to present
    evidence demonstrating why, in his view, the note was not exculpatory,
    even though the petitioner established a prima facie basis for his claim.
    See, e.g., Adams v. Commissioner of Correction, 
    309 Conn. 359
    , 369–70, 
    71 A.3d 512
     (2013) (to prove Brady violation, defendant must establish that
    state’s withholding of information was both exculpatory and material). The
    third habeas court observed, however, that the Appellate Court ‘‘concluded
    that the petitioner has established the exculpatory nature of the Ludlow
    note and [therefore] satisfied the first prong of the Brady analysis.’’ Consider-
    ing itself bound by this determination, the third habeas court treated the
    Ludlow note as exculpatory.
    With respect to the issue of whether the state improperly had failed to
    disclose the Ludlow note, the third habeas court observed that there was
    ‘‘no indication or evidence that the . . . note was wilfully suppressed’’ by
    the state. The third habeas court did not decide whether the note neverthe-
    less had been suppressed inadvertently by the state; instead, for purposes
    of its analysis, the third habeas court assumed, without deciding, that the
    state unwittingly had failed to disclose it to the petitioner prior to his criminal
    trial. The respondent has not raised either ground in its appeal from the
    Appellate Court’s judgment.
    26
    As we explain more fully in part III A of this opinion, contrary to the
    third habeas court’s finding, Corry did not dispute DeHaan’s estimate of the
    peak temperature.
    27
    As we explain more fully in part III A of this opinion, Corry did not
    dispute Kelder’s testimony either with respect to the fire’s energy level or
    with respect to the fire’s peak temperature.
    28
    See footnote 3 of this opinion.
    29
    See footnote 4 of this opinion.
    30
    The third habeas court also rejected the petitioner’s claim of actual
    innocence based on DNA testing of the gloves and the pubic hair recovered
    from the crime scene, as well as the claim that first habeas counsel’s repre-
    sentation of the petitioner was constitutionally deficient on the basis of his
    failure to demonstrate ineffective assistance of trial counsel as a result of
    their failure to utilize available evidence to demonstrate the unreliability of
    his confessions. As to the first claim, ‘‘[a]lthough the [third habeas] court
    found that the petitioner had presented newly discovered evidence with
    respect to DNA analysis, it concluded that the results were unreliable,
    particularly as to the pair of gloves, because of contaminated or potentially
    contaminated DNA samples. With respect to the pubic hair, the [third habeas]
    court stated that it could not be determined with any degree of certainty
    how the hair came to rest on the [victim’s] blue sweater. Although the DNA
    analysis excluded the petitioner as a donor, the [third habeas] court reasoned
    that the hair could have come from the perpetrator or it could have been
    transferred to the crime scene in a manner unassociated with the attack on
    the victim.’’ Lapointe v. Commissioner of Correction, supra, 
    138 Conn. App. 463
    . With respect to the second claim, the third habeas court concluded
    that, although trial counsel could have done more to highlight the various
    ways in which the petitioner’s statements were inconsistent with the evi-
    dence, those discrepancies were otherwise readily discernible to the jury,
    and, consequently, the petitioner was not prejudiced by trial counsel’s failure
    to emphasize the inconsistencies.
    31
    ‘‘The record contains testimony that it took the petitioner approximately
    ten to fifteen minutes to walk from his home to the victim’s apartment.
    There also is testimony that because the petitioner has Dandy-Walker [s]yn-
    drome, he is slow and unsteady on his feet.’’ Lapointe v. Commissioner of
    Correction, supra, 
    138 Conn. App. 477
     n.19. Thus, it would have taken the
    petitioner at least twenty minutes to walk to and from the victim’s apartment,
    and it likely would have taken him longer if he had his small dog with him,
    as he asserted in his statements to the police.
    32
    In support of its conclusion, the Appellate Court also stated: ‘‘The peti-
    tioner exercised his sixth amendment right to a trial by an impartial jury.
    If the Ludlow note had been disclosed to trial counsel, however, it would
    have been the responsibility of the jury and not the court to weigh the
    credibility of the arson experts. Whether the burn time evidence, which was
    so critical in buttressing [the petitioner’s] alibi defense, raised a reasonable
    doubt as to the petitioner’s guilt would best be a determination left to the
    jury and not a habeas court.’’ Lapointe v. Commissioner of Correction,
    supra, 
    138 Conn. App. 476
    –77 n.17.
    33
    We note that, on appeal to the Appellate Court, the petitioner also
    claimed that the third habeas court improperly had rejected his actual
    innocence claim and his claim that first habeas counsel’s representation
    was constitutionally deficient on the basis of his failure to establish that
    trial counsel had rendered ineffective assistance by not utilizing the available
    evidence—in particular, the many inaccuracies in the petitioner’s statements
    about the how the crime was committed—to demonstrate that his admis-
    sions were unreliable. See Lapointe v. Commissioner of Correction, supra,
    
    138 Conn. App. 464
    , 468. The Appellate Court rejected the first claim; id.,
    468; and declined to reach the second claim in light of its determination
    that the petitioner was entitled to a new trial due to the state’s suppression
    of the Ludlow note in violation of Brady and first habeas counsel’s deficient
    performance under Strickland owing to his failure to pursue that claim
    competently. See id., 479–80 n.22.
    In addition, the respondent claimed in the Appellate Court that the state
    had not suppressed the Ludlow note. Id., 472 n.16. With respect to this issue,
    the Appellate Court acknowledged that the third habeas court had assumed
    without deciding that the note was inadvertently suppressed by the state;
    id., 472; and then stated: ‘‘On appeal, the respondent argues that the Ludlow
    note was not suppressed because it was preliminary and speculative, and
    the petitioner’s trial counsel knew of its essential facts. The [third] habeas
    court did not address those claims. In its memorandum of decision, the
    [third habeas] court stated: ‘There is no indication or evidence that the
    Ludlow note was [wilfully] suppressed, so this court will assume, without
    deciding, solely for purposes of addressing the petitioner’s claim, that the
    Ludlow note was inadvertently suppressed.’ . . . Without any further analy-
    sis by the [third habeas] court, the record is inadequate . . . to address
    this argument of the respondent.’’ Id., 472 n.16. Because, however, the
    respondent had prevailed in the third habeas court, he had no reason to
    seek a determination with respect to his claim that the Ludlow note had
    not been suppressed. Consequently, the record was inadequate for review
    of the issue through no fault of the respondent, and the Appellate Court
    therefore should have remanded the case to the habeas court for a resolution
    of the issue. On appeal to this court, however, the respondent has not
    challenged the decision of the Appellate Court with respect to this issue,
    and, therefore, the respondent has waived any such claim. We do note,
    however, that, even if the respondent had preserved the issue, and sought
    a remand to resolve it, there is a substantial likelihood that he would not
    prevail, albeit for an entirely different reason than that given by the Appellate
    Court. Specifically, if, contrary to the assumption of the third habeas court,
    the Ludlow note had not been suppressed by the state, the petitioner likely
    would be able to establish in his habeas proceeding, first, that first habeas
    counsel should have recognized the exculpatory nature of the note and,
    second, that his failure to pursue a claim predicated on the note constituted
    ineffective assistance of counsel, thereby entitling the petitioner to a new
    trial, which the Appellate Court ordered in any event.
    Finally, the respondent raised no claim in the Appellate Court with respect
    to issue of whether the Ludlow note was exculpatory. Consequently, the
    respondent has abandoned any such claim.
    34
    The state’s ‘‘obligations under Brady to disclose such information [do]
    not depend on whether the information to be disclosed is admissible as
    evidence in its present form. The objectives of fairness to the defendant,
    as well as the legal system’s objective of convicting the guilty rather than the
    innocent, require that the prosecution make the defense aware of material
    information potentially leading to admissible evidence favorable to the
    defense.’’ United States v. Rodriguez, 
    496 F.3d 221
    , 226 (2d Cir. 2007).
    35
    Such error occurs ‘‘when there is no evidence in the record to support
    [the court’s finding of fact],’’ or when, although there is evidence to support
    the factual finding, the reviewing court, upon consideration of the entire
    record, ‘‘is left with a definite and firm conviction that a mistake has been
    committed.’’ (Internal quotation marks omitted.) State v. Benjamin, 
    299 Conn. 223
    , 236, 
    9 A.3d 338
     (2010).
    36
    With respect to the materiality of withheld evidence, we have stated
    that we will give weight to the determination of the trial judge deciding that
    issue, even though our review is plenary, if that same judge also presided
    over the defendant’s criminal trial. See State v. Ortiz, 
    supra,
     
    280 Conn. 721
    –22. We do so because, in that circumstance, the judge had the opportu-
    nity to observe the trial proceedings firsthand and, as a consequence, is
    well positioned to assess the strength of the original trial evidence in relation
    to the evidence withheld by the state. See 
    id., 721
    . In the present case,
    however, no such respect is due because the third habeas court, Nazzaro,
    J., did not preside over the petitioner’s criminal trial.
    37
    As we have explained; see footnote 33 of this opinion; the respondent
    has abandoned any claim that he may have had with respect to whether,
    first, the Ludlow note was, in fact, exculpatory and, second, the state did,
    in fact, suppress the note.
    38
    Thus, we do not ask whether the jury conceivably could have credited
    the expert testimony. The standard, rather, is whether there is a reasonable
    probability of the jury having credited the expert testimony, thereby giving
    rise to a probability of a different verdict sufficient to undermine confidence
    in the outcome.
    39
    We note that, on several occasions, the third habeas court cast its
    materiality analysis in terms of whether the outcome of the petitioner’s
    criminal trial reasonably would have been different if he had had the benefit
    of the expert burn time testimony for purposes of that trial. See Lapointe
    v. Commissioner of Correction, Superior Court, judicial district of Tolland,
    Docket No. CV-02-0818542-S (April 15, 2011) (concluding that petitioner had
    failed to show ‘‘how [the expert burn time testimony] reasonably would
    have led the jury to conclude [that] there was reasonable doubt in light of
    all the evidence presented to the jury’’ [emphasis added]); see also 
    id.
     (‘‘[t]he
    court is unable to conclude that [first habeas counsel’s] failure to have an
    arson/fire expert testify in the first habeas [proceeding] would have resulted
    in anything different [from the present] habeas [case]: a prototypical battle
    of the experts resulting in diverging opinions’’ [emphasis added]). The third
    habeas court did correctly state, however, that, under Brady, the petitioner
    must establish that the withheld evidence ‘‘could reasonably be taken to
    put the whole case in such a different light as to undermine confidence in
    the verdict,’’ and that, ‘‘if the [withheld] evidence creates a reasonable doubt
    [regarding the petitioner’s guilt] that does not otherwise exist, constitutional
    error has been committed.’’ (Internal quotation marks omitted.) For pur-
    poses of this appeal, we may presume that the third habeas court applied
    the proper legal standard because, as we explain more fully hereinafter,
    due to the nature of the testimony that is the subject of the petitioner’s
    Brady claim, we review that testimony de novo.
    40
    When the issue of materiality gives rise to a disputed factual issue the
    resolution of which requires credibility findings by the trial court, we will
    give appropriate deference to those findings if they are supported by the
    record. We emphasize, however, that, because the predictive judgment of
    whether a jury reasonably might credit the Brady material, such that the
    jury reasonably might find the defendant not guilty, gives rise to a question
    of law, our deference to the trial court’s fact-finding is always tempered by
    an independent and searching examination of the record.
    41
    In Behn, which also involved a petition for a new trial based on newly
    discovered scientific evidence; see State v. Behn, supra, 
    375 N.J. Super. 413
    –14; the Appellate Division of the New Jersey Superior Court similarly
    declined to defer to the trial court’s finding that the expert scientific evidence
    did not warrant a new trial. See 
    id.,
     431–33. In that case, the trial court
    denied the new trial petition without a hearing in light of its determination
    that the newly discovered evidence, which was presented to that court in
    the form of comprehensive affidavits from the expert witnesses for the
    defense, was not ‘‘of the sort that would probably change the jury’s verdict
    if a new trial were granted.’’ (Internal quotation marks omitted.) Id., 432.
    The Appellate Division reversed the judgment of the trial court and ordered
    that the defendant, Chael S. Behn, be granted a new trial; id., 434; explaining
    that it was not necessary to remand the case for an evidentiary hearing, at
    which the trial court could hear live testimony from the expert witnesses,
    because the affidavits provided a sufficient basis for relief. See id. The
    Appellate Division observed that the trial court, ‘‘not having presided over
    [Behn’s criminal] trial, was in no better position to [perform the requisite]
    analysis than [the Appellate Division]. . . . [T]he [materiality question] pre-
    sents a mixed question of law and fact, requiring that [the Appellate Division]
    give deference to supported factual findings of the trial court . . . but
    review de novo the [trial] court’s application of any legal rules to such
    factual findings. . . . In this instance, the [trial] judge’s conclusion on the
    [materiality] prong [does] not involve any underlying factual findings but
    only a legal conclusion, [namely] whether the newly discovered evidence
    probably would have affected the jury’s verdict. As such, [the Appellate
    Division] exercise[s] de novo review.’’ (Citations omitted; internal quotation
    marks omitted.) Id., 432–33. In granting a new trial without remanding the
    case for an evidentiary hearing on the reliability of the expert testimony,
    the Appellate Division necessarily concluded that the persuasive force of
    the proffered expert testimony was sufficient to warrant a new trial without
    any finding by the trial court as to the personal credibility of the experts.
    42
    Our conclusion in this regard is limited to the kind of fact-finding that
    is implicated in the Brady context. In cases involving claims under Brady,
    the function of the habeas court is to determine whether the evidence
    withheld by the state is sufficiently credible that a jury reasonably could
    credit it and, if so, whether the evidence also is sufficiently pertinent to an
    issue in the case that it reasonably could lead to a different result. This
    predictive evaluation of the evidence is different from the ordinary case, in
    which the fact finder is responsible for the ultimate assessment of credibility.
    Thus, as the Pennsylvania Supreme Court recently explained, ‘‘[a]ssessing
    credibility for purposes of [Brady] prejudice is not necessarily the same
    thing as assessing credibility at a trial.’’ Commonwealth v. Johnson, 
    600 Pa. 329
    , 359, 
    966 A.2d 523
     (2009). After observing that its research had revealed
    no case that ‘‘specifically sets forth a standard for credibility determinations’’
    in that context, the court in Johnson explained that ‘‘[l]ogically, however,
    credibility assessments [for purposes of Brady] are not absolutes, but must
    be made with an eye to the governing standard of a ‘reasonable probability’
    that the outcome of the trial would have been different.’’ 
    Id.
     Because, in
    addressing a claim under Brady, a habeas court’s credibility determination
    is not an ‘‘absolute’’ finding, as the factual findings of the ultimate finder
    of fact are, but merely is a threshold evidentiary assessment required for
    the purpose of determining whether the ultimate finder of fact reasonably
    could credit the evidence, the principle that reviewing courts typically defer
    to credibility findings in the Brady context has its sole basis in the fact that
    the habeas court is ordinarily in a better position to judge credibility, and
    is not based on the general prohibition against appellate fact-finding. Conse-
    quently, when this court is in as good a position as the habeas court to assess
    credibility for the purpose of reviewing a claim under Brady, reviewing the
    habeas court’s credibility assessment de novo does not place this court in
    the improper role of finding ultimate facts but merely allows this court to
    carry out its proper role of determining the legal question of materiality
    under Brady. Indeed, because we ultimately must decide whether the state
    violated the petitioner’s due process rights by withholding exculpatory evi-
    dence, and because the superior position of the third habeas court to view
    firsthand the testimony of the parties’ experts had nothing to do with its
    credibility findings on that issue, we would be abdicating our responsibility
    with respect to the issue of materiality if we did not review those findings
    de novo.
    43
    In addition, as this court recently explained in clarifying the standard
    of review for Brady claims, the issue of materiality is subject to plenary
    appellate review, but deference is to be afforded the trial court’s findings
    with respect to the ‘‘underlying historical facts . . . .’’ State v. Ortiz, 
    supra,
    280 Conn. 720
    . The present case, however, does not require any such findings,
    and the third habeas court made none. Moreover, the third habeas court’s
    probabilistic assessment as to whether a jury reasonably might credit the
    exculpatory testimony of the petitioner’s experts was based solely on the
    court’s perception of the strength of those opinions and not on anything
    having to do with the experts’ experience, qualifications, character, veracity
    or demeanor during their testimony.
    44
    In support of this contention, the respondent claims that the Appellate
    Court improperly (1) failed to defer to the credibility findings of the third
    habeas court, (2) failed to consider the petitioner’s expert testimony ‘‘in the
    context of the entirety of the evidence of record,’’ in particular, the evidence
    adduced at the petitioner’s criminal trial, and (3) applied an incorrect test
    with respect to the materiality of the petitioner’s expert testimony. We reject
    the respondent’s first claim because, as we have explained; see part II B of
    this opinion; see also part III B 2 of this opinion; under the circumstances
    presented, the Appellate Court properly conducted a de novo review of the
    third habeas court’s credibility findings. We reject the respondent’s second
    claim for the reasons set forth in part III C of this opinion.
    We also reject the respondent’s third claim, which is predicated on the
    assertion that the Appellate Court, in determining that the petitioner’s expert
    testimony satisfied the Brady materiality test, ‘‘improperly based [its deci-
    sion on] that which it independently deemed to be conceivable, not [on]
    that which was reasonably probable in light of the [third] habeas court’s
    finding regarding credibility and the entirety of the evidence of record.’’ In
    support of this argument, the respondent relies on the statement of the
    Appellate Court that the testimony of the petitioner’s experts, ‘‘if believed
    by the jury, could have resulted in the jury’s finding that it was temporally
    impossible for the petitioner to have committed the crimes [of] which he
    was convicted.’’ Lapointe v. Commissioner of Correction, supra, 
    138 Conn. App. 479
    . According to the respondent, this language indicates ‘‘that the
    Appellate Court only paid lip service to Brady’s ‘reasonable probability’
    standard, while, in actuality . . . it reached its own materiality determina-
    tion speculating on the basis of what ‘could have’ happened ‘if’ certain
    evidence had been believed.’’ We do not agree that the Appellate Court
    resorted to speculation and conjecture in deciding the issue of materiality.
    The Appellate Court expressly stated that a Brady violation may be estab-
    lished only ‘‘by showing that the favorable evidence could reasonably be
    taken to put the whole case in such a different light as to undermine confi-
    dence in the verdict. . . . [E]vidence is material only if there is a reasonable
    probability that, had the evidence been disclosed to the defense, the result
    of the proceeding would have been different. A reasonable probability is a
    probability sufficient to undermine confidence in the outcome.’’ (Citation
    omitted; emphasis added; internal quotation marks omitted.) Lapointe v.
    Commissioner of Correction, supra, 
    138 Conn. App. 476
    . We have no doubt
    that the Appellate Court, having recited the correct standard for materiality—
    one that requires a reasonable likelihood that the result of the original trial
    would have been different—also applied that standard. Indeed, we cannot
    conceive how the Appellate Court possibly could have concluded, as it did,
    that the unavailability of the expert burn time testimony ‘‘affected the overall
    fairness of the trial and was so unfair as to undermine [its] confidence in
    the jury’s verdict’’; 
    id.,
     478–79; if it had determined only that that testimony
    provided a remote or speculative possibility of a different result. As the
    respondent himself acknowledges, ‘‘[i]t is well established that [m]ere con-
    jecture and speculation are not enough to support a showing of prejudice’’
    in this context. (Internal quotation marks omitted.) Sinchak v. Commis-
    sioner of Correction, 
    126 Conn. App. 670
    , 678, 
    14 A.3d 348
    , cert. denied,
    
    301 Conn. 901
    , 
    17 A.3d 1045
     (2011). Therefore, we review the Appellate
    Court’s use of the term ‘‘if’’ as properly reflecting its engagement in a
    probabilistic assessment of the effect of the Brady material on the jury’s
    assessment of the evidence. Accordingly, there is no merit to the respon-
    dent’s contention that the Appellate Court relied on an improper test to
    determine materiality.
    45
    Specifically, DeHaan testified that ‘‘the fire never got much more than—
    well, it was in the order of 250 to 350 kilowatts at its maximum. . . . In
    plain language . . . [that] would probably be about the same as an average
    fireplace fire.’’ He further explained that, in the event that there had been
    more ventilation—for example, if a door or window had been open during
    the fire—‘‘a love seat like [the one in the victim’s apartment] is capable of
    generating [a] maximum heat release rate . . . in the order of 2000 kilo-
    watts. In other words, it would have been six times [as] big [of a] fire; the
    fire would have basically reached the ceiling, actually spread across the
    ceiling, and it might have actually brought this whole room to involvement.’’
    46
    The respondent argues that Kelder also opined that the ground level
    temperature in the apartment at the time the firefighters entered was 400
    degrees or more, a temperature at which the firefighters concededly would
    have been burned. On the contrary, Kelder testified that, once Boland opened
    the sliding door, ‘‘the heat became lesser right away. It . . . vent[ed] itself
    right out the door,’’ which allowed the firefighters to enter. Indeed, according
    to Kelder, ‘‘there was not a lot of heat in that room at the time they entered.’’
    We note that, on cross-examination, Kelder was asked whether, on the
    basis of the firefighters’ trial testimony, he could estimate the temperature
    inside the apartment when the firefighters entered. Kelder responded that
    it was probably 600 to 800 degrees at floor level when Tomkunas touched
    the outside of the front door, at which point, as far as Kelder could recall,
    another firefighter opened the sliding glass doors, ‘‘dissipating the smoke
    and heat . . . right out the door.’’ Kelder further stated, however, that he
    would have to review the transcript of the trial testimony of the firefighters
    a second time to formulate a more precise estimate of what the temperature
    was when they arrived and that, in any event, his analysis of the fire was
    dependent on factors other than entry level temperatures.
    47
    DeHaan testified as follows on cross-examination:
    ‘‘Q. Now, in your testimony, you indicated that you estimated that the
    temperature in the apartment when . . . Tomkunas entered was 300
    degrees?
    ‘‘A. No, I think I said 400 degrees.
    ‘‘Q. Did you say 400 degrees?
    ‘‘A. I believe I did, yes. I talked about a lot of temperatures. . . .
    ‘‘Q. Well . . . what exactly do you mean by that?
    ‘‘A. I’m talking about the hot gas layer temperature, because it wouldn’t
    have been much hotter than that and still left so much . . . relatively undam-
    aged in the structure. If it had been much over 400 degrees . . . then there
    would have been more thermal damage to materials in the structure, in the
    smoke layer. If [it had] been much lower than that, then . . . Tomkunas
    would not have necessarily been dissuaded from entering.’’
    48
    When asked whether it was ‘‘significant that the rug in the apartment
    hadn’t burned in any way,’’ DeHaan stated: ‘‘Yes, that shows that the tempera-
    ture of the hot smoke layer never got above a certain threshold because
    the hotter that smoke layer is, the more intense the radiant heat is, and the
    lack of damage to the . . . synthetic fiber rug indicates that the radiating
    heat was very limited [be]cause what happens is that, even under fairly low
    radiant heat intensities, synthetic fabrics, like carpets, tend to start to melt,
    and, when they do, they get kind of crispy to the touch; once they cool off
    again, they’re kind of—you can actually rub your hand across [them] and
    detect that thermal effect . . . but there was no reported melting or ignition,
    even close to ignition [of the victim’s carpet], and that . . . set a limit for
    just how hot that hot smoke layer was [at its peak].’’
    49
    In contrast, both DeHaan’s report and Kelder’s report were introduced
    as full exhibits.
    50
    Accordingly, the third habeas court’s conclusory—and factually unsup-
    ported—assertion that DeHaan’s burn time estimate was inconsistent with
    the ‘‘historical and physical evidence marshaled by Corry’’ is puzzling. As
    we have indicated, all three experts were provided with the same information
    and materials about the fire. Although Kelder and Corry visited the victim’s
    apartment complex as part of their review of the evidence, DeHaan was
    provided with a set of architectural drawings, and his testimony indicates
    that he assumed for purposes of his analysis the same conditions that Kelder
    and Corry observed firsthand, namely, an airtight compartment with a high
    insulation factor. DeHaan testified that visiting the apartment twenty-three
    years after the fire would have served no useful purpose because the fire
    was a contents fire, and the contents were no longer available for inspection.
    Indeed, there was no material difference in the underlying testimony of the
    three experts; their testimony differed only with regard to their ultimate
    opinion as to the estimated burn time.
    51
    Specifically, Corry testified as follows:
    ‘‘A. Based on the evidence from witnesses and so forth, I would say 5:45
    [p.m.], based on the fact that . . . Howard, the [victim’s] daughter, drove
    by and said she saw [the victim] outside emptying trash between 5:30 and
    5:45 [p.m.], and probably 7:55 [p.m.], which is when . . . Howard claimed
    she called [the victim] and there was no answer on the [tele]phone.
    ‘‘Q. And what is the basis of your conclusion based on those facts?
    ‘‘A. Well, [the victim] was in the apartment and she didn’t answer the
    [tele]phone, so she had already been assaulted and was probably incapaci-
    tated at that point.
    ‘‘Q. So . . . with regard to the earlier time, when she was viewed outside
    the apartment, that was clearly before the fire was set?
    ‘‘A. Right.
    ‘‘Q. So . . . in your opinion, the fire could have been set at any time
    within that time frame?
    ‘‘A. I think so, yes. I believe that’s when it was set.’’
    Along the same lines, Corry predicated certain other conclusions about
    the fire’s burn time on facts or assumptions unrelated to the dynamics of
    the fire itself. For example, Corry opined that the ignition point of the fire
    was ‘‘on the bottom of the back of the couch.’’ When asked why, he stated:
    ‘‘Only because it would [require] . . . a match, and that’s what [the peti-
    tioner] said in his [third statement to the police, namely] . . . that he had
    a match.’’
    52
    Justice Zarella’s view of this case, then, is very simple. He asserts that
    the Appellate Court ‘‘removed any requirement that the petitioner make a
    credibility showing’’ under Brady, and, ‘‘[a]s a result, the Appellate Court
    analyzed the petitioner’s claim by hypothesizing what a jury could find, if
    it credited the new evidence. . . . The Appellate Court granted the peti-
    tioner a new trial on the basis of the results of this speculation. . . . The
    issue presented to this court is whether the Appellate Court properly con-
    cluded as it did.’’ (Citations omitted; emphasis in original.) Of course, the
    only possible answer to this question is ‘‘no,’’ and Justice Zarella supplies
    it. As we explain hereinafter, however, in characterizing the issue as he
    does, Justice Zarella sets up, and then demolishes, the flimsiest of straw men.
    53
    Thus, there simply is no justification for Justice Zarella to attribute to
    the Appellate Court an absurd standard of review. But, even if there were
    some question as to whether the Appellate Court had engaged in plenary
    review of the credibility of the parties’ expert testimony or, as Justice Zarella
    argues, no review at all, we would not accept Justice Zarella’s contention
    because it is well established that we would read any such ambiguity to
    support rather than to undermine the Appellate Court’s judgment. See, e.g.,
    Water Street Associates Ltd. Partnership v. Innopak Plastics Corp., 
    230 Conn. 764
    , 773, 
    646 A.2d 790
     (1994).
    54
    What would be surprising is if the respondent had argued that the
    Appellate Court simply assumed the credibility of that testimony and, further,
    that the habeas court likewise has no role in assessing the testimony. Indeed,
    the absurdity of attributing such a position to the Appellate Court is reflected
    in Justice Zarella’s characterization of the issue of law that, he claims, is
    presented by this appeal, namely, whether the petitioner has the ‘‘burden
    to establish the credibility of new evidence in order to prove Strickland/
    Brady prejudice and the [third] habeas court’s role in determining whether
    the petitioner has met that burden.’’ Because it is axiomatic that the peti-
    tioner bears such a burden—in other words, because the credibility of
    evidence presented to establish a Brady claim most certainly cannot be
    assumed—to ask the question that Justice Zarella poses is to answer it.
    55
    As we have explained, the respondent also claims that the Appellate
    Court misapplied the reasonable probability standard for ascertaining mate-
    riality under Brady by improperly speculating as to what a jury might find
    on the basis of that testimony rather than determining whether the testimony
    gave rise to a reasonable prospect of a different outcome. See footnote 44
    of this opinion. Of course, that claim is entirely different from the claim
    that Justice Zarella raises sua sponte.
    56
    We therefore reject Justice Zarella’s contention that our decision in the
    present case is somehow inconsistent with Blumberg Associates Worldwide,
    Inc. v. Brown & Brown of Connecticut, Inc., 
    311 Conn. 123
    , 
    84 A.3d 840
    (2014) (Blumberg), in which we limited the discretion of this court and the
    Appellate Court to identify and address claims not raised by the parties in
    recognition of the fact that ‘‘our system is an adversarial one in which the
    burden ordinarily is on the parties to frame the issues, and the presumption
    is that issues not raised by the parties are deemed waived.’’ Id., 164. Because
    we are addressing and resolving the claim that the respondent has raised,
    the principles underlying Blumberg simply are not implicated.
    57
    For his part, the petitioner argues that the Appellate Court correctly
    concluded that his experts were worthy of belief and that he was entitled
    to have a jury make the ultimate determination of whether to credit their
    testimony or that of the respondent’s expert. Indeed, the petitioner argues
    that the judgment of the Appellate Court should be affirmed because ‘‘[t]he
    point is all the experts, as made clear by the [third] habeas court, offered
    credible evidence as to the fire’s burn time, all of which established that
    the suppression of the burn time was an important and significant issue
    going to the heart of the prosecution. It was not for the [third] habeas court,
    in what it concedes was a ‘contest among experts,’ to determine materiality
    based on which expert it found the most credible.’’ To the extent that Justice
    Zarella recites various arguments that the petitioner has not made, those
    arguments are beside the point. Because the respondent is the appellant in
    this appeal, we focus on whether the respondent’s arguments are sufficiently
    persuasive to warrant reversal of the Appellate Court’s judgment.
    58
    Justice Zarella also contends that, ‘‘[b]ecause neither party has claimed,
    either in this court or the Appellate Court, that an appellate tribunal can
    properly make its own credibility assessments . . . we have no briefing
    from the parties on [this issue] . . . .’’ Once again, the record flatly contra-
    dicts Justice Zarella’s contention. The respondent’s brief contains an exten-
    sive discussion of why, in the respondent’s view, the third habeas court
    properly resolved the materiality question as it did. Indeed, as we discuss
    subsequently in this opinion; see part III C of this opinion; Justice Zarella’s
    arguments concerning the evidentiary underpinnings of the third habeas
    court’s conclusions regarding the burn time evidence mirror the respondent’s
    arguments in all respects—arguments that, according to Justice Zarella, the
    respondent was deprived of the opportunity to make, thus forcing Justice
    Zarella to make them on his own.
    59
    We also note that, according to Justice Zarella, the third habeas court
    concluded that the petitioner’s burn time testimony ‘‘likely would not be
    admissible’’ because it ‘‘would not be helpful to a jury . . . .’’ Footnote 23
    of Justice Zarella’s dissenting opinion. In support of this assertion, Justice
    Zarella relies on the following italicized language in the third habeas court’s
    memorandum of decision: ‘‘The expert testimony on the fire and its estimated
    total burn time would not be in the ordinary knowledge and experience of
    the typical juror. While it may be relatively easy to conclude that expert
    testimony such as what was presented to [the third habeas] court could
    have been presented to the jury, the use of such experts would not have
    assisted the jury in knowing precisely when the fire was set.’’ (Emphasis
    added.) Contrary to Justice Zarella’s assertion, it is perfectly clear that, in
    using this language, the third habeas court in no way was suggesting that
    the testimony of DeHaan and Kelder—two highly experienced and qualified
    experts in the science of fire reconstruction who, in the words of the third
    habeas court, were embroiled with Corry in ‘‘a prototypical battle of the
    experts’’—would have been inadmissible at the petitioner’s criminal trial.
    Rather, the court was merely explaining why, in its view, a jury would not
    be persuaded by that testimony, that is, because it was not sufficiently
    definite or precise as to when the fire was set. The third habeas court
    expressly stated that its rejection of the petitioner’s claim was predicated
    on its determination that Corry’s testimony was entitled to ‘‘more credit or
    weight’’ than the testimony of DeHaan and Kelder, and not, as Justice Zarella
    claims, that the testimony of DeHaan and Kelder was inadmissible. In fact,
    the third habeas court would have been incorrect as a matter of law if it
    had reached the conclusion that Justice Zarella attributes to it because it
    is undisputed that the testimony of the petitioner’s experts, if credited along
    with Martin’s testimony, would provide the petitioner with a complete alibi.
    60
    As we previously noted, the third habeas court’s credibility determina-
    tion was not predicated on any underlying findings that required a firsthand
    assessment of witness credibility. Justice Zarella, however, asserts that the
    third habeas court ‘‘necessarily depended on’’ the testimony of Igoe, a wit-
    ness at both the petitioner’s criminal trial and the third habeas trial, in
    crediting the opinion of Corry over the opinion of DeHaan. In support of
    this assertion, Justice Zarella observes that Igoe, whom the petitioner called
    as a witness, tested a small portion of the foam from inside the couch many
    hours after the fire was extinguished and indicated that it burned slowly,
    whereas DeHaan testified that, in his view, the couch itself had burned
    rapidly. Justice Zarella’s assertion that the third habeas court relied on this
    testimony in crediting Corry’s opinion is incorrect. Igoe further testified
    that he never sought to determine the burn time of the fire and never rendered
    an opinion about how long the fire burned. In fact, as the respondent states
    in his brief to this court, ‘‘Igoe . . . made [it] abundantly clear when he
    testified at the [third habeas] trial that he could opine only that it may have
    taken anywhere from ‘several minutes to several hours’ for the fire to ‘get
    rolling,’ ’’ depending on the conditions in the house. In other words, Igoe
    did not know whether the fire consumed the couch in moments or hours.
    This testimony explains why the third habeas court did not include Igoe’s
    testimony as one of the several reasons why he credited Corry over DeHaan:
    whatever Igoe may have meant when he stated that the portion of the couch
    that he tested had burned slowly, there is nothing in that testimony that
    would cast doubt on DeHaan’s opinion regarding the burn time of the fire.
    Moreover, Igoe’s testimony about the couch foam did not support Corry’s
    analysis over DeHaan’s or Kelder’s because, as we previously have explained,
    all three experts were in complete agreement about the dynamics of the
    fire and burn properties of the materials comprising the couch. Specifically,
    they all agreed that the materials, including the foam inside the couch
    cushions, were highly flammable and could support a powerful (high energy)
    fire if there had been more oxygen in the victim’s apartment. They also
    agreed that the fire, which was set on the back of the couch, not the couch
    cushions, burned out before it could involve the couch cushions. Photo-
    graphs of the crime scene reveal that the couch cushions were relatively
    intact in comparison to the back of the couch, which was completely
    destroyed, and Corry himself believed that something must have been lying
    across the couch to prevent the fire from spreading to the cushions. Conse-
    quently, Igoe’s testimony at the third habeas trial could have had no bearing
    on the third habeas court’s evaluation of the parties’ expert testimony.
    61
    In none of the cases on which Justice Zarella relies to support his
    contention; see, e.g., Sanchez v. Commissioner of Correction, 
    314 Conn. 585
    , 611–12, 
    103 A.3d 954
     (2014); Anderson v. Commissioner of Correction,
    
    313 Conn. 360
    , 375, 
    98 A.3d 23
     (2014), cert. denied sub nom. Anderson v.
    Semple,         U.S.     (
    83 U.S.L.W. 3678
    , February 23, 2015); did we have
    occasion to address the exceptional situation, presented here, in which this
    court is in as good a position as the trial court to judge credibility for
    purposes of the Brady materiality determination. Consequently, there is
    nothing in any of those cases that forecloses our de novo review of the
    credibility findings of the third habeas court in the present case.
    62
    Of course, a defendant seeking a new trial on the basis of newly discov-
    ered evidence bears a significantly higher burden of establishing the material-
    ity of the evidence at issue than a defendant raising a claim under Brady
    or Strickland. This is so, of course, because Brady and Strickland seek to
    vindicate the defendant’s fair trial rights, whereas a new trial petition based
    on newly discovered evidence does not.
    63
    In fact, the second step of the materiality analysis in this very case
    provides such an example. Under Brady and Strickland, it must be deter-
    mined whether the evidence at issue, when considered in the context of
    the original trial, is of sufficient import relative to that original trial evidence
    to undermine confidence in the verdict. As in all such cases, our review of
    that determination is de novo because we are as well situated as the habeas
    court to make that decision.
    64
    Justice Zarella also asserts that ‘‘[s]ubsequent cases from the Indiana
    Court of Appeals appear to have limited, if not overruled, the holding in
    Bunch.’’ Footnote 21 of Justice Zarella’s dissenting opinion. Our review of
    the cases that Justice Zarella cites reveals otherwise. On the contrary, those
    cases uniformly underscore the court’s continued support of Bunch. See,
    e.g., White v. State, 
    978 N.E.2d 475
    , 481 (Ind. App. 2012) (agreeing with
    court in Bunch that reviewing court should not defer to threshold admissibil-
    ity finding of postconviction court when that finding did not involve credibil-
    ity determination because, in such circumstances, reviewing court is ‘‘in the
    same position as the trial court and therefore [is] able to independently
    assess the evidence . . . without invading the province of the trial court’’
    [internal quotation marks omitted]), trans. denied, 
    982 N.E.2d 1016
     (Ind.
    2013); see also Cardinal Ritter High School, Inc. v. Bullock, 
    17 N.E.3d 281
    ,
    291 (Ind. App. 2014) (citing Bunch approvingly for proposition that it is not
    necessary for reviewing court to defer to postconviction court’s assessment
    of expert’s scientific evidence when ‘‘the assessment was not based on
    demeanor but on evidence that was also in front of the [reviewing] court’’).
    65
    Justice Zarella accuses us of posing these two examples in an attempt
    to ‘‘distract’’ the reader from our ‘‘constitutional transgression’’ in the present
    case. Footnote 17 of Justice Zarella’s dissenting opinion. On the contrary, we
    pose them to highlight the flaws in Justice Zarella’s constitutional analysis.
    Justice Zarella further explains that these ‘‘two undisputed propositions’’
    merely present ‘‘mixed questions of law and fact’’ that this court previously
    has acknowledged are subject to de novo review. 
    Id.
     To the extent that we
    understand Justice Zarella’s argument, it proves our point, first, because
    neither the clearly erroneous standard nor our Kitchens waiver inquiry
    represents a mixed question of law and fact, whereas the Brady materiality
    standard is properly characterized in that manner. E.g., State v. Ortiz, 
    supra,
    280 Conn. 720
    . Furthermore, although we have labeled the second prong
    of the clearly erroneous standard and the Kitchens waiver test as posing
    questions of law—because they are to be decided by the reviewing court,
    without regard to any findings by the trial court—they undeniably involve
    fact-finding of the most basic kind, and Justice Zarella makes no attempt
    to demonstrate otherwise. Of course, we are not now questioning our author-
    ity to make the kind of findings required in those two examples; we note
    them, rather, because they are manifestly inconsistent with Justice Zarella’s
    insistence that our exercise of de novo review in the present case is some-
    how unconstitutional.
    66
    Such a claim is also belied by the record because DeHaan actually
    testified that exposure to 300 or 400 degree temperatures for any period of
    time ‘‘would . . . give you second, third degree burns . . . .’’
    67
    Justice Zarella asserts that ‘‘[t]he majority attempts to reconcile
    DeHaan’s testimony on this point by claiming that DeHaan, in stating that
    one could have approached the fire and extinguished it, meant that one could
    have approached the fire if one were wearing proper protective equipment.
    Curiously, however, no such qualification appears in DeHaan’s testimony
    on this point—the majority has simply made this up out of whole cloth.’’
    Footnote 27 of Justice Zarella’s dissenting opinion. Although it certainly is
    true that no such qualification appears in DeHaan’s testimony, this is only
    because none was sought by the parties, presumably because they did not
    perceive the need for one. We also do not believe that an explanation is
    required because, unlike Justice Zarella, we do not read DeHaan’s testimony
    concerning the fire’s energy level in isolation so as to render it nonsensical
    or absurd. Rather, we read it in the context of DeHaan’s entire testimony,
    including his testimony that Tomkunas was unable to enter the victim’s
    apartment because he lacked the proper attire and breathing equipment,
    and not because the fire was of such magnitude as to preclude entry by a
    properly equipped firefighter. Indeed, it was undisputed among the experts
    that the fire never spread beyond the couch and was reduced to a smoldering
    fire quickly due to decreasing levels of oxygen.
    68
    We note that Justice Zarella also argues that the third habeas court
    ‘‘was fully justified in concluding that Kelder’s opinion would be excluded
    from a criminal trial altogether’’ because ‘‘[t]he petitioner did not provide
    any evidence to show that Kelder used scientifically valid methods to investi-
    gate the fire, rendering his testimony not credible and inadmissible.’’ For
    the reasons that we previously discussed; see footnote 59 of this opinion;
    we reject Justice Zarella’s contention that the third habeas court concluded
    that Kelder’s testimony was inadmissible. Nor is there any support in the
    record for Justice Zarella’s contention concerning the admissibility of Keld-
    er’s testimony. Even if Justice Zarella is correct, a jury only would have to
    credit one of the petitioner’s experts to conclude that it was temporally
    impossible for the petitioner to have committed the crimes with which he
    was charged.
    69
    Justice Espinosa also has issued a dissenting opinion. To the extent
    that her opinion purports to raise any relevant points of law, they are
    identical to those raised by Justice Zarella, whose dissenting opinion we
    already have addressed. Thus, no substantive response to Justice Espinosa
    is called for. We are constrained, however, to make the following brief
    observation. It often has been repeated and long understood that the princi-
    pal purpose of the ‘‘great writ’’ of habeas corpus, which traces its origins
    to the Magna Carta, is ‘‘to serve as a bulwark against convictions that violate
    fundamental fairness.’’ (Internal quotation marks omitted.) Luurtsema v.
    Commissioner of Correction, 
    299 Conn. 740
    , 757, 758, 
    12 A.3d 817
     (2011).
    ‘‘Because the writ is intended to safeguard individual freedom against arbi-
    trary and lawless state action, it must be administered with the initiative
    and flexibility essential to [e]nsure that miscarriages of justice within its
    reach are surfaced and corrected.’’ (Internal quotation marks omitted.) 
    Id.,
    757–58. Today, a majority of this court, applying those venerable legal princi-
    ples following a scrupulous and objective review of the trial record, upholds
    the decision of a unanimous panel of the Appellate Court in concluding
    simply that the state’s Brady violation, and the failure of the petitioner’s
    habeas counsel to recognize that violation, entitles the petitioner to a
    new trial.
    Justice Espinosa reaches a different conclusion, which, of course, is her
    right. Rather than support her opinion with legal analysis and authority,
    however, she chooses, for reasons we cannot fathom, to dress her argument
    in language so derisive that it is unbefitting an opinion of this state’s highest
    court. Perhaps worse, her interest lies only in launching groundless ad
    hominem attacks and in claiming to be able to divine the (allegedly improper)
    personal motivations of the majority. We will not respond in kind to Justice
    Espinosa’s offensive accusations; we are content, instead, to rely on the
    merits of our analysis of the issues presented by this appeal. Unfortunately,
    in taking a different path, Justice Espinosa dishonors this court.
    70
    This court has long recognized that ‘‘confessions represent the most
    damaging evidence of guilt . . . . State v. Ruth, 
    181 Conn. 187
    , 199, 
    435 A.2d 3
     (1980); see also State v. Patterson, 
    276 Conn. 452
    , 473, 
    886 A.2d 777
    (2005) (evidence regarding an accused’s admission of guilt generally is
    extremely important to the state and damaging to the accused); Common-
    wealth v. DiGiambattista, 
    442 Mass. 423
    , 446, 
    813 N.E.2d 516
     (2004) ([t]here
    is no dispute that the evidence of a defendant’s alleged statement or confes-
    sion is one of the most significant pieces of evidence in any criminal trial).’’
    (Citation omitted; internal quotation marks omitted.) State v. Lockhart, 
    298 Conn. 537
    , 596, 
    4 A.3d 1176
     (2010); see also Colorado v. Connelly, 
    479 U.S. 157
    , 182, 
    107 S. Ct. 515
    , 
    93 L. Ed. 2d 473
     (1986) (‘‘[t]riers of fact accord
    confessions such heavy weight in their determinations that the introduction
    of a confession makes the other aspects of a trial in court superfluous, and
    the real trial, for all practical purposes, occurs when the confession is
    obtained’’ [internal quotation marks omitted]); Ex parte Soffar, Texas Court
    of Criminal Appeals, Docket Nos. WR-29 980-03, WR-29 980-04 (Tex. Crim.
    App. October 3, 2012) (‘‘Juries routinely accept the notion that an innocent
    person would never confess to a crime he didn’t commit; therefore, if a
    person has confessed, he must be guilty. . . . Unfortunately, that common-
    sense position is not necessarily accurate. Legal literature is littered with
    cases in which innocent people confess to crimes that they have not commit-
    ted. . . . [O]nce a confession is introduced into evidence against a suspect
    at trial, it almost inevitably leads to a suspect’s conviction. [Indeed] . . .
    [s]tudies show that individuals who falsely confessed and chose to take
    their cases to trial were [found guilty] by juries [73 to 81 percent] of the
    time before having their innocence proven.’’ [Footnotes omitted; internal
    quotation marks omitted.]); M. Berger, ‘‘False Confessions—Three Tales
    from New York,’’ 
    37 Sw. U. L. Rev. 1065
    , 1067 (2008) (‘‘No one doubts that
    confessions have an enormous impact. Once jurors hear the defendant
    confessed, the result is likely to be a guilty verdict regardless of [the]
    defendant’s attempted explanation. The notion that an innocent suspect will
    admit to committing a crime is deeply counter to most persons’ assumptions
    about how they would respond if falsely accused. . . . [F]ew, if any phenom-
    ena of human behavior . . . are less intuitive than that of false confessions.’’
    [Footnote omitted; internal quotation marks omitted.]).
    71
    Shortly after Lombardo took over the investigation of the murder and
    sexual assault of the victim, he obtained a saliva sample from Brad Thomas,
    a suspect in another sexual assault case. Test results revealed that Thomas,
    like the petitioner, also was a secretor with type A blood. According to
    Lombardo, Thomas was eliminated as a suspect because there were sperm
    in the semen sample from the sex crime kit in the other sexual assault case
    in which he had been charged. This fact might not eliminate Thomas as a
    source of the semen at the crime scene. See footnote 73 of this opinion.
    72
    Although there is no evidence in the record concerning the age of the
    stain, it always has been assumed that it was left by the killer and, therefore,
    that the killer is a secretor with type A blood.
    73
    Novitch testified that ‘‘[a]n ejaculation is not a homogeneous mixture,’’
    and because ‘‘the sperm cells [that contain DNA] are heavy,’’ they frequently
    do not combine with the other components of the semen. As a result, Novitch
    further explained: ‘‘[V]ery often, when I find a seminal stain, there isn’t any
    sperm in that . . . stain,’’ even though the donor’s semen does, in fact,
    contain sperm.
    In addition, John Coleman, a forensic scientist employed by Life Codes
    Corporation, also examined the semen stain from the victim’s bedspread.
    Testifying on behalf of the state, he explained that heat will degrade the
    DNA in semen such that, ‘‘at 100 degrees, [it] would certainly affect the
    DNA molecule.’’ As we previously indicated, the parties’ fire experts testified
    at the third habeas trial that temperatures inside the victim’s apartment
    likely reached 400 to 600 degrees during the fire.
    74
    See, e.g., State v. Perea, supra, 
    322 P.3d 642
    –44 and nn.10–18 (discussing
    some of extensive literature on false confessions and factors likely to pro-
    duce them); B. Garrett, ‘‘The Substance of False Confessions,’’ 
    62 Stan. L. Rev. 1051
    , 1060 (2010) (‘‘Over the past two decades, scholars, social scien-
    tists, and writers have identified at least 250 cases in which they determined
    that people likely falsely confessed to crimes. New cases are regularly
    identified.’’); D. Harkins, ‘‘Revisiting Colorado v. Connelly: The Problem of
    False Confessions in the Twenty-First Century,’’ 
    37 S. Ill. U. L.J. 319
    , 320
    (2013) (‘‘[T]he advent of DNA testing has provided a powerful new way to
    conclusively demonstrate that false confessions occur much more frequently
    than was previously understood. . . . In fact, recent studies have illustrated
    that roughly one-fourth of all DNA exonerations involved a false admission
    of guilt—a staggering figure that is indicative of the power of confession
    evidence.’’).
    75
    Although the trial court found that the petitioner was not actually in
    police custody when he made his statements, the interrogation, which took
    place at the station house at the request of the police, lasted nine hours,
    and the petitioner did not leave until he was told to do so in the early
    morning hours of the following day. These circumstances, coupled with the
    petitioner’s mental impairment, gave rise to a scenario that, in many respects,
    was akin to custodial interrogation. See, e.g., State v. Mangual, 
    311 Conn. 182
    , 193, 
    85 A.3d 627
     (2014) (‘‘[a]s used in . . . Miranda [and its progeny],
    ‘custody’ is a term of art that specifies circumstances that are thought
    generally to present a serious danger of coercion’’ [internal quotation marks
    omitted]); see also In re Kevin K., 
    299 Conn. 107
    , 127, 
    7 A.3d 898
     (2010)
    (explaining that ‘‘[a] person is in custody . . . if, in view of all the sur-
    rounding circumstances, a reasonable person would have believed [that] he
    was not free to leave’’ [internal quotation marks omitted]).
    76
    Significantly, in 2011, our legislature sought to address the growing
    concern over false and coerced confessions by enacting Public Acts 2011,
    No. 11-174, § 1 (P.A. 11-174), codified at General Statutes § 54-1o, which
    mandates that all custodial interrogations of persons suspected of commit-
    ting certain enumerated felonies be electronically recorded. Public Act 11-
    174, § 1, became effective January 1, 2014.
    77
    Brooks, Lombardo’s commanding officer, testified that, prior to their
    interrogation of the petitioner, he and his officers had heard ‘‘from a number
    of people’’ that the petitioner ‘‘was slightly retarded . . . .’’ According to
    Brooks, the petitioner was always ‘‘friendly’’ and ‘‘talkative’’ but did not
    ‘‘impress [him] . . . as being an intellectually bright individual . . . .’’ He
    was, according to Brooks, ‘‘different . . . .’’ When asked to explain in what
    way the petitioner was different, Brooks responded: ‘‘One primary factor
    is that [he] did not drive a car. [There is] [n]o law against that, but [it is]
    highly unusual in our society today.’’ Brooks also noted that the petitioner
    ‘‘moved from job to job, and they were primarily low paying, low skilled
    type of jobs.’’
    78
    The petitioner was fifteen years old when he developed a condition,
    related to Dandy-Walker syndrome, that required him to undergo five surger-
    ies to relieve intercranial pressure.
    79
    For example, Thomas Moriarty, an attorney from Manchester, testified
    that the petitioner and Martin, his wife, were regular customers at the
    supermarket Moriarty managed during law school. According to Moriarty,
    the petitioner was ‘‘very simple,’’ ‘‘more like a child inside a man’s body.’’
    Moriarty testified that the petitioner was ‘‘really a jolly little . . . guy, you
    know. He was kind, and he was courteous. But . . . he was very simple.
    And his wife, frankly, came across the same way.’’ Moriarty testified that
    the petitioner was so gullible that, when he told him that the bananas sold
    in the store were grown on trees located behind the store, the petitioner
    asked repeatedly if Moriarty would show him the trees.
    According to Robert Russo, a priest at Saint Bridget Church in Manchester,
    it was ‘‘readily apparent’’ to anyone who knew the petitioner that his ‘‘mental
    capacity was not up to par.’’ Russo stated that, although people teased the
    petitioner quite a bit about it, he ‘‘took [it] in a very [kind] way. He would
    laugh about it [and] joke about it. . . . [People] obviously knew he was
    slow, and they would try to engage him in conversation that was far above
    his mental abilities. And [the petitioner] would always try to respond. But,
    of course, he couldn’t do it. And so they would laugh at that, make jokes
    about it.’’
    Michael Andreo, the owner of a supermarket at which the petitioner
    worked for several years, testified that the petitioner was ‘‘[m]entally . . .
    incapable’’ of running a cash register or even stocking shelves. ‘‘He tried to
    stock shelves,’’ but he would ‘‘get mixed up’’ and put things in the wrong
    place.
    Elizabeth Martin, the petitioner’s mother-in-law, testified that both the
    petitioner and his wife had the mentality of ‘‘eight year old[s] . . . .’’ When
    asked how they were able to function at home if this were the case, Elizabeth
    Martin responded: ‘‘Well, I hate to hurt [the petitioner’s] feelings, but not
    great. . . . [The petitioner’s wife] couldn’t really do housework [because
    of her physical disability]. So, it was . . . left to [the petitioner]. And most
    things . . . my husband [had] to [do for them]. A lot of the things [in the
    house] . . . were broken . . . . [The petitioner] was awkward. He wasn’t
    well coordinated.’’
    80
    The petitioner was evaluated by the following mental health profession-
    als and physicians: Kenneth M. Selig, a forensic psychiatrist in private prac-
    tice; Anne M. Phillips, a clinical psychologist in private practice; Walter M.
    Phillips, chief of psychology at Waterbury Hospital and a member of the
    faculty at Yale University; Geraldine R. Cassens, a neuropsychologist at the
    Institute of Living in the city of Hartford; Gus Anderson, a neurologist in
    private practice; and Donald R. Grayson, a psychiatrist in private practice.
    Reports were obtained from all of these experts and introduced at various
    stages of the proceedings.
    81
    At trial, Grayson testified that the petitioner’s higher than expected IQ
    score on a test administered by Anne M. Phillips was the result of the
    petitioner’s ability to ‘‘[memorize] a great deal of ‘ice cream knowledge,’ ’’
    such as state capitals, information that makes him appear more intelligent
    than he really is but does little to help him navigate or function in the day-
    to-day world.
    82
    As this court explained in its decision in the petitioner’s direct appeal
    from the judgment of conviction, ‘‘[i]n order to counter the [petitioner’s]
    experts’ opinions concerning the [petitioner’s] possible inability to assert
    himself and their testimony that the [petitioner] might be meek and highly
    suggestible, the state presented several witnesses, both at the suppression
    hearing and during rebuttal at trial, who testified that, in view of their
    personal experiences with the [petitioner], they found him to be extremely
    independent, assertive, argumentative and even hot tempered.’’ State v.
    Lapointe, supra, 
    237 Conn. 723
    . Upon review of the aformentioned testi-
    mony, however, it is clear that only one of the witnesses, the petitioner’s
    former neighbor, described the petitioner as argumentative and hot tem-
    pered. On appeal, the respondent relies on the testimony of this witness—
    who claims that the petitioner once stomped her flowers into the ground
    in a fit of pique because the flowers were planted in violation of their
    condominium association’s rules—in support of the argument that, even if
    the original jury had considered the original trial evidence together with
    the new alibi evidence, there is no reasonable probability that the result
    would have been different. As we explain more fully hereinafter, the testi-
    mony of the petitioner’s neighbor, like the testimony of the state’s other
    rebuttal witnesses, most of whom were members of the victim’s family,
    does not instill confidence in the verdict. To the contrary, most of it strongly
    reinforced the testimony of defense witnesses that the petitioner is a socially
    odd and childlike man, with a very rigid approach to life.
    83
    Lombardo testified at length regarding the petitioner’s body language
    during the interrogation. Lombardo told the jury that, in his experience, the
    petitioner’s passivity and failure to object loudly, as well as the way he sat
    in ‘‘a runner’s position’’ and wrung his hands, was indicative of ‘‘someone
    who [was] being deceptive or trying to hide something.’’ It bears mention,
    however, that, at the petitioner’s first habeas trial, Richard Leo, a leading
    authority on police interrogation methods and false confessions, testified
    that the commonly held belief among police officers that deception can
    be determined merely by observing someone’s body language is ‘‘totally
    pseudoscientific . . . . [I]f somebody is slumped over, if somebody is pas-
    sive, if somebody utters quiet denials, if somebody is in a runner’s position,
    somebody is sweating, evasive or nervous, that is not necessarily indicative
    of guilt . . . .’’ Leo’s observation that the police officers make poor lie
    detectors has been confirmed in a number of recent studies. See, e.g., G.
    Gudjonsson, ‘‘False Confessions and Correcting Injustices,’’ 
    46 New Eng. L. Rev. 689
    , 696 (2012) (‘‘[c]oncerns have been raised that the [Reid behavioral
    analysis interview] indicators represent little more than common-sense
    beliefs about deception that are contradicted by scientific studies and place
    innocent . . . suspects at risk of being misclassified and giving a false
    confession’’); R. Leo, ‘‘False Confessions: Causes, Consequences, and Impli-
    cations,’’ 37 J. Am. Acad. Psychiatry L. 332, 334 (2009) (‘‘[S]ocial scientific
    studies have repeatedly demonstrated across a variety of contexts that
    people are poor human lie detectors and thus are highly prone to error in
    their judgment about whether an individual is lying or telling the truth. Most
    people get it right at rates that are no better than chance [that is, 50 percent]
    or the flip of a coin. Moreover, specific studies of police interrogators have
    found that they cannot reliably distinguish between truthful and false denials
    of guilt at levels greater than chance; indeed, they routinely make erroneous
    judgments. The method of behavior analysis taught by [one well established]
    police training firm . . . has been found empirically to lower judgment
    accuracy, leading [two researchers] to conclude that the [foregoing method
    of behavior analysis] may not be effective—and, indeed, may be counterpro-
    ductive—as a method of distinguishing truth and deception . . . .’’ [Citation
    omitted; footnotes omitted; internal quotation marks omitted.]); J. Masip et
    al., ‘‘Is the Behaviour Analysis Interview Just Common Sense?,’’ 25 Applied
    Cognitive Psychol. 593, 595 (2011) (‘‘[T]he behavioural indicators of decep-
    tion [established by earlier research] do not coincide with the scientific
    evidence accumulated over several decades of [more recent] empirical
    research. . . . [More recent research reveals] that observers’ accuracy in
    judging the veracity of truthful and deceptive [video-recorded] statements
    was lower if the observers had previously been trained to detect deception
    using . . . cues [established by that earlier research] than if they had not
    been trained.’’ [Emphasis in original.]). We acknowledge Leo’s testimony
    and the foregoing related scholarly articles merely to point out that any
    testimony by Lombardo at a new trial concerning the petitioner’s purportedly
    incriminating body language may well be subject to substantial impeach-
    ment, thereby minimizing or even eliminating whatever adverse effect that
    testimony might have had on the petitioner at his criminal trial.
    84
    As we discuss more fully in footnote 91 of this opinion, the witness to
    whom Lombardo was referring, King, the victim’s next door neighbor, testi-
    fied at the petitioner’s criminal trial that she never told Lombardo or anyone
    else that she had seen the petitioner walking his dog near the victim’s
    apartment on the evening of the victim’s murder.
    85
    As the petitioner contends, a secretly recorded interview of Martin by
    Morrissey, which came to light after Morrissey had testified at the hearing
    on the petitioner’s motion to suppress, provides strong support for the
    petitioner’s account of his own interrogation. Specifically, the audio
    recording demonstrates that Morrissey threatened Martin with arrest and
    repeatedly told her that she could lose custody of her son if she did not
    provide Morrissey with incriminating information about the petitioner.
    Because the recording came to light while the suppression hearing was
    ongoing, the trial court, Barry, J., permitted the petitioner’s trial counsel to
    recall Morrissey to be questioned about the recording and the discrepancies
    between it and Morrissey’s earlier testimony regarding his interview of
    Martin. At that time, Morrissey acknowledged that, when he first appeared
    as a witness, and in the affidavit that was filed in support of the application
    for the petitioner’s arrest warrant, Morrissey provided inaccurate and mis-
    leading testimony concerning his interview of Martin and the statements
    she gave during that interview. Indeed, we have reviewed the suppression
    hearing testimony that Morrissey provided both before and after the disclo-
    sure of the recording, as well as the recording itself, and we are compelled
    to observe that the numerous discrepancies between Morrissey’s original
    account of his interview with Martin and what actually transpired during
    that interview as reflected in the recording are very troubling and call into
    serious question the credibility of one of the state’s key witnesses. In his
    amended habeas petition, the petitioner alleged that his trial counsel pro-
    vided ineffective assistance by failing to present the recording to the jury
    to impeach Morrissey’s testimony and to establish that the petitioner’s con-
    fession was coerced and false. The third habeas court rejected this claim,
    concluding, inter alia, that, although the recording was ‘‘laden with implicit
    threats’’ to Martin, trial counsel’s failure to use it at trial was a ‘‘tactical
    decision’’ that did not rise to the level of ineffective assistance of counsel,
    a determination that the petitioner challenged on appeal to the Appellate
    Court. The Appellate Court did not reach this issue, however, in light of its
    determination that the petitioner was entitled to a new trial on the basis of
    the state’s suppression of the Ludlow note. See Lapointe v. Commissioner
    of Correction, supra, 
    138 Conn. App. 479
    –80 n.22. On appeal to this court
    following our granting of certification, the petitioner raises as an issue his
    trial counsel’s failure to present the recording of Morrissey’s interview of
    Martin as an alternative ground for affirmance. Like the Appellate Court,
    we need not reach this issue in light of our determination that the petitioner
    is entitled to a new trial due to the state’s suppression of the Ludlow note.
    We agree with the Appellate Court, however, that it is difficult to discern
    why trial counsel would not have presented this evidence to the jury ‘‘when
    the stated trial strategy was to demonstrate the falsity of the petitioner’s
    statements’’; 
    id.,
     480 n.22; and when the evidence bore so directly on the
    credibility of Morrissey, the officer who had elicited the most incriminating
    statement from the petitioner and whose truthfulness and reliability regard-
    ing the circumstances under which that statement was elicited were critical
    to the state’s case.
    Furthermore, notwithstanding the third habeas court’s ruling, we have
    little doubt that the petitioner’s counsel will make effective use of the
    recording at a new trial, if the state elects to retry the petitioner, both to
    impeach Morrissey’s credibility and to bolster the petitioner’s claim that the
    burn time estimates provided by DeHaan and Kelder prove that it was
    temporally impossible for the petitioner to have committed the crimes of
    which he was convicted because the testimony of DeHaan, Kelder and
    Martin provides him with a complete and compelling alibi.
    86
    For present purposes, our focus, of course, is the import of the burn
    time evidence relative to the strength of the case that the state presented
    against the petitioner; see, e.g., Rocha v. Thaler, 
    619 F.3d 387
    , 396 (5th Cir.
    2010) (‘‘[t]he materiality of Brady material depends almost entirely on the
    value of the evidence relative to the other evidence mustered by the state’’
    [internal quotation marks omitted]), cert. denied,           U.S.      , 
    132 S. Ct. 397
    , 
    181 L. Ed. 2d 255
     (2011); a case that, as we have explained, was
    predicated largely on his statements to the police. As we also have explained,
    a real concern arises over the reliability of the petitioner’s admissions in
    light of his physical and mental impairments, the nature and substance of
    his admissions, and the manner in which they were obtained. Indeed, this
    commonsense concern has been substantiated by numerous articles and
    studies on false confessions that have been published in the more than
    two decades that have passed since the petitioner’s criminal trial. We also
    acknowledge the testimony of Richard Leo, a much published and frequently
    cited expert on false confessions—his research on false confessions has
    been cited by numerous courts, including the United States Supreme Court—
    who testified at the petitioner’s first habeas trial in support of the petitioner’s
    claim of actual innocence. Following a hearing at which the first habeas
    court determined that Leo’s proffered testimony was both reliable and rele-
    vant, Leo testified that false confessions have certain telltale signs. For
    example, he noted that a classic interrogation tactic is ‘‘to suggest to the
    suspect that it was merely an accident, because it lowers the level of culpabil-
    ity. . . . It gives the suspect a way to believe that they’re either not going
    to get punished or they [will] get a lesser level of punishment. [The] police
    are trained in this technique. It’s one of the most common techniques.’’ Leo
    explained that, whenever a suspect confesses to a crime by claiming that
    it was an accident, as the petitioner did in the present case, it is safe to
    assume that the interrogator put the idea into the suspect’s head. Leo further
    testified that the petitioner’s repeated reference to having no memory of
    the crime and statements to the effect that his mind must have gone blank
    are other strong indicators of a false confession. In most false confession
    cases, Leo explained, a suspect gets to a point at which he ‘‘stop[s] challeng-
    ing the evidence and . . . come[s] to doubt the reliability of [his] memory,
    and [he] come[s] to make statements like, ‘well, maybe I was blacking out’
    . . . . [He tries] to understand [how] it’s possible that [he] could have done
    this with [no] recollection or memory of having done it, and [he will] say
    things like [the petitioner said in the present case]: ‘Maybe my mind went
    blank; maybe that’s what happened . . . .’ ’’ Leo also was troubled by the
    highly equivocal nature of the petitioner’s statements: ‘‘[The petitioner states
    in the second statement], ‘I probably made a pass at her and she said no.’
    People who come to doubt their memory because of the [false] evidence
    ploy, because they’re gullible, because they’re naive and believe [that the]
    police wouldn’t lie to them [about the evidence] . . . talk in conditional
    and ambivalent language: I probably did this; I could have done that; I must
    have done this; I would have done that. They express uncertainty in how
    they describe or admit to something, and that uncertainty essentially demon-
    strates their absence of actual knowledge. They’re speculating about some-
    thing.’’ Leo also observed: ‘‘The next line is, ‘if the evidence shows I was
    there and that I killed her, then I killed her, but I don’t remember being
    there.’ Again, this is the kind of reasoning someone goes through when [he]
    come[s] to doubt [his] memory. I don’t remember doing it, but, if the evidence
    is there, I must have done it.’’ According to Leo, ‘‘this is how innocent
    false confessors who lack the actual knowledge of how the crime occurred
    [confess]. They talk in conditional language . . . .’’
    Leo further noted that all three of the petitioner’s statements ‘‘contained
    factual errors that shouldn’t be there if it’s a confession of a truthful person.
    . . . [The petitioner] says that he strangled her manually, but, apparently,
    she was not strangled manually. He [says] that he physically raped her, but
    . . . there was no penile rape. These are errors. He says he tied her up with
    rope initially, but she was not tied up with rope. These are the kinds of
    errors that guilty people don’t make. . . . Conversely, when one looks at
    false confession cases, these are exactly the kind of errors that innocent
    false confessors make because they demonstrate a lack of actual knowledge.
    They communicate ignorance. In the typical false confession case, [in which]
    something like this occurs, the false confessor is guessing. They’re trying
    to infer what occurred, they’re trying to feed back the information that they
    have ascertained, or they’re just making it up, and they get it wrong.’’ In
    this regard, we deem it noteworthy that, when Lombardo was asked how
    the petitioner responded when Lombardo confronted him with the fact
    that a witness purportedly had seen him walking his dog near the victim’s
    apartment at 7 p.m., Lombardo stated that the petitioner had simply ‘‘agreed’’
    that the information that the witness provided was accurate, even though, as
    we explained in footnotes 84 and 91 of this opinion, no such witness existed.
    Of course, Leo did not testify at the petitioner’s criminal trial. Thus, we
    do not rely on his habeas testimony in evaluating the strength of the state’s
    case at the petitioner’s criminal trial. We recite that testimony, rather, only
    to underscore our conclusion, which is predicated on the nature of the
    petitioner’s admissions and the circumstances under which they were
    obtained, that his admissions are unreliable, a claim that the petitioner’s
    trial counsel raised at his criminal trial.
    87
    The respondent also argues that a jury likely would discount the petition-
    er’s alibi in light of Martin’s suppression hearing testimony that she could
    not account for the petitioner’s whereabouts between 6:15 and 7 p.m. Specifi-
    cally, the respondent argues that ‘‘Martin’s account changed every time she
    officially spoke about [the] petitioner’s whereabouts,’’ which will ‘‘[reflect]
    poorly [on] her credibility.’’ We reject this argument because it ignores the
    context in which Martin’s testimony was elicited. At the hearing, Martin
    was asked by the state, ‘‘from the time you began to get your son ready for
    bed, until the time you came down with your son to watch [television], did
    you see your husband at all?’’ Martin responded, ‘‘No. I did not.’’ The state
    then asked Martin whether she knew ‘‘where he was’’ during that time. Martin
    responded: ‘‘He was downstairs.’’ The following colloquy then took place.
    ‘‘Q. Do you know he was inside the house during the whole time or not?
    ‘‘A. I don’t know, I guess.
    ‘‘Q. . . . So, if he’d been outside of the house during that time, you
    wouldn’t have known it, is that fair to say?
    ‘‘A. Yes.
    ‘‘Q. . . . And you have no way of knowing whether he stayed in the house
    during that time or whether he left? Is that fair to say?
    ‘‘A. I guess. . . . That’s fair, so yes.
    ***
    ‘‘Q. . . . And I take it that’s not something that occurred to you when
    you talked to [Detective Morrissey], that [the petitioner] might have left
    [while you were upstairs] . . . ?
    ‘‘A. No. . . . I didn’t even think of that.
    ‘‘Q. . . . So, you just assumed he was home because you didn’t . . .
    know any different?
    ‘‘A. [Yes].
    ‘‘Q. . . . But you didn’t see him at all during that bedtime procedure with
    your son . . . ?
    ‘‘A. No. I did not. . . . I assumed he was home.
    ‘‘Q. . . . And you wouldn’t know, one way or the other?
    ‘‘A. No.’’
    Contrary to the respondent’s contention, we believe that a jury readily
    could conclude that it had never had occurred to Martin, until the state
    presented the idea to her at the suppression hearing, that the petitioner had
    slipped out of the house and, while Martin was upstairs getting their son
    ready for bed, walked to the victim’s apartment, sexually assaulted and
    murdered her, and set her apartment on fire, and then returned home before
    Martin came downstairs, looking and acting no differently than when she
    had seen him thirty to forty-five minutes earlier.
    88
    We note that, in support of his contention that the state’s case against
    the petitioner was founded on ‘‘compelling evidence of guilt,’’ the respondent
    quotes extensively from our statement of the facts in State v. Lapointe,
    supra, 
    237 Conn. 696
    –702, in which we recited the facts that the jury reason-
    ably could have found. It is apparent from even a cursory review of that
    factual recitation that we set forth those facts in the light most favorable
    to the state, even though the petitioner had made no claim of evidentiary
    insufficiency. The petitioner’s direct appeal afforded us no opportunity to
    assess the strength of the state’s case; because our current task is to deter-
    mine the importance of the suppressed evidence in relation to the strength
    of the state’s evidence at the petitioner’s criminal trial, we examine that
    evidence objectively rather than in the light most favorable to the state.
    See, e.g., Kyles v. Whitley, 
    supra,
     
    514 U.S. 441
    –54 (affording no deference
    to government’s theory of guilt when reviewing original trial evidence to
    determine materiality of Brady material); Tice v. Johnson, 
    647 F.3d 87
    , 110
    (4th Cir. 2011) (‘‘[the court is] not bound . . . to view the facts in the light
    most favorable to the prosecution’’).
    89
    At the petitioner’s criminal trial, the court allowed the petitioner to
    introduce into evidence numerous articles from The Hartford Courant and
    The Journal Inquirer, a Manchester newspaper, for the limited purpose of
    establishing that, contrary to the state’s contentions, it was widely known
    that, within days of the victim’s murder, the victim had been sexually
    assaulted. Some of the articles contain information concerning a sexual
    assault in the town of South Windsor and the similarities between that crime
    and the victim’s murder. Merrill, a career criminal who was released from
    prison one month before the victim’s murder, was immediately arrested for
    the South Windsor sexual assault. In one of the articles, Merrill was described
    by Edward Daily, a lieutenant and spokesperson for the Connecticut State
    Police, as ‘‘ ‘one of the most evil men’ ’’ that Daily ever had encountered.
    S. Jensen, ‘‘Police: ‘Peanut Butter Bandit’ No Joke,’’ Journal Inquirer, March
    13, 1987, p. 18. According to the same article, Merrill was questioned in
    connection with the victim’s murder because of the similarities between
    the two crimes and their close proximity to one another. See 
    id.
    We note, in addition, that, in his first habeas petition; see footnote 17 of
    this opinion; the petitioner alleged ineffective assistance of trial counsel on
    the basis of their failure to utilize available evidence to raise a third-party
    culpability defense. In support of this claim, the petitioner presented the
    testimony of Paulette DeRocco, a Manchester resident, who stated that, on
    March 9, 1987, the day after the murder, she contacted the police to inform
    them that, at approximately 8 p.m. the night before, she and her two teenaged
    children were driving past the victim’s apartment complex on their way
    home when they saw a man running from the complex ‘‘like he was being
    chased by a pack of dogs.’’ DeRocco had to slam on her brakes to avoid
    hitting him. According to DeRocco, the man was wearing ‘‘dark . . . mainte-
    nance worker’s type clothes’’ and appeared ‘‘disheveled with [his] shirttail
    partially out.’’ DeRocco told the police that she and her children watched
    the man running down the street until he disappeared behind a building.
    DeRocco contacted the police as soon as she heard about the victim’s
    murder because she thought that there might be a connection between the
    crime and the man she had seen fleeing the immediate vicinity of the crime
    scene. According to DeRocco, when she and her children arrived home on
    the night of the victim’s murder, ‘‘the sirens were going off’’ in town, and
    she remembered thinking that it was strange that they would go off right
    after she had observed someone so suspicious. The description that DeRocco
    gave of the man she saw running from the victim’s apartment complex bore
    no resemblance to the petitioner. DeRocco testified that the police took
    her statement and asked her to review photographs of possible suspects,
    but she was unable to identify anyone. The first habeas court rejected the
    petitioner’s claim concerning his trial counsel’s failure to raise a third-party
    culpability defense on the ground that DeRocco’s testimony was insufficient
    to link the unidentified person to the victim’s murder. See Lapointe v.
    Warden, supra, Superior Court, Docket No. CV-97-0571161. The petitioner
    did not challenge this determination or any of the first habeas court’s other
    determinations concerning the claims alleged in the first habeas petition on
    appeal. We express no view with respect to the admissibility of this third-
    party culpability evidence at a new trial.
    90
    The respondent identifies a litany of other purportedly unusual and
    suspicious conduct by the petitioner that the state argued at trial was evi-
    dence of his guilt, including the following: (1) the petitioner used King’s
    front door rather than her back door when he went to use her telephone,
    even though King’s back door was closer to the victim’s apartment; (2)
    when the petitioner first used King’s telephone, he called Martin and Howard
    rather than the fire department, even though, following the victim’s murder,
    he told a police officer that he thought he smelled smoke while on his way
    over to the victim’s apartment and that the door was warm to the touch;
    (3) the petitioner told Howard that the back door was locked when he
    arrived at the victim’s apartment, even though firefighters found it unlocked;
    (4) the petitioner did not inform the first firefighter on the scene that the
    apartment was ‘‘occupied by an elderly and sickly relation’’ but, instead,
    yelled, ‘‘ ‘[t]his is it; this is the place’ ’’; (5) over the years, the petitioner
    peppered the police with questions about the status of the investigation and
    whether he was a suspect in the case; and (6) the petitioner testified that
    he may have walked his dog a second time on the day of the murder and
    allegedly told a family friend that he visited the victim several times on the
    day of the murder. Suffice it to say that we do not believe that a jury would
    necessarily find any of this conduct particularly odd or suspicious, even for
    the average person, and would likely find it much less so for the petitioner,
    a person who, by all accounts, is easily confused and does not perceive or
    respond to things in the ordinary way.
    91
    The weakness of the state’s case is further demonstrated by the respon-
    dent’s reliance on the testimony of King, the victim’s neighbor, who, the
    respondent argues, ‘‘testified that she had seen the petitioner walking his
    dog near the victim’s apartment shortly after 7 p.m. on the day [of the
    victim’s murder].’’ A review of the record reveals, however, that King did
    not testify that she saw the petitioner walking his dog near the victim’s
    apartment at 7 p.m. Rather, Lombardo testified that King told him, two
    years after the murder, that she had seen the petitioner walking his dog at
    7 p.m. King, however, at both the hearing on the petitioner’s motion to
    suppress and at the petitioner’s criminal trial, strenuously denied ever telling
    Lombardo any such thing. King stated that the only time she saw the peti-
    tioner on the day of the murder was when he came to her apartment to use
    the telephone, first to call Martin and Howard, and then, a few minutes
    later, to call the fire department.
    The respondent’s reliance on such purported facts does not end with
    King’s testimony. For example, the respondent contends that ‘‘the jury had
    evidence, in the form of the results of psychological testing, that the peti-
    tioner may have been a person who: was overly sensitive to criticism; reacted
    to even minor problems with anger and hostility; tended to externalize
    blame; bore grudges and worked to get even with those he perceived to
    have wronged him; and exhibited sexual deviation.’’ In support of this con-
    tention, the respondent cites the testimony of Anne M. Phillips, one of the
    psychologists who examined the petitioner following his arrest. See footnote
    80 of this opinion. A review of Phillips’ testimony, however, reveals that it
    provides no support for the respondent’s assertions. According to Phillips,
    the test results at issue were the petitioner’s raw scores on the Minnesota
    Multiphasic Personality Inventory (MMPI) test, an examination consisting
    of 567 true or false questions that she administered to the petitioner following
    his arrest. Phillips explained that the computer program that scores the test
    is designed to flag any potential areas of concern, regardless of whether
    they are applicable to the test taker, and that it is the clinician who ultimately
    determines their applicability. Phillips explained that the test does not take
    into account the individual circumstances of the test taker, which bear
    heavily on how the test results are interpreted by the test administrator.
    For example, Phillips explained that a patient may score high on the depres-
    sion scale, but, if the clinician knows that the test taker’s mother recently
    died, the score is interpreted in light of the test taker’s grief related to that
    loss. With respect to the petitioner, Phillips explained that it would be highly
    unusual for a person, incarcerated for a crime that he says he did not commit
    and facing a possible death sentence, not to score high on the anger or
    paranoia scales. As for sexual deviancy, Phillips further explained that there
    is only one question on the MMPI test that relates to sexuality, and the answer
    is recorded under a category labeled ‘‘Sexual Concern and Deviation.’’ The
    question is: ‘‘I wish I [was] not bothered by thoughts of sex.’’ Because the
    petitioner answered ‘‘true’’ to this question, sexual concern or deviation
    was flagged as a potential area of concern. Phillips stated that, on the basis
    her follow-up discussions with the petitioner, she ruled out any problems
    relating to sexual deviancy. Indeed, according to Phillips, the Megargee
    typology section of the MMPI test, ‘‘a system developed for classifying
    incarcerated inmates according to their degree of psychological disturbance,
    their adjustment to incarceration, their propensity for impulsive and danger-
    ous behavior, and the most appropriate form of incarceration and treatment,’’
    classified the petitioner ‘‘as . . . Type I . . . . which is . . . considered
    to be the most stable and most benign of the ten Megargee profiles.’’ Phillips
    explained that ‘‘it’s a profile that is an essentially normal one . . . . [I]ndi-
    viduals matching [this] . . . profile tend . . . not to be convicted [of]
    crimes of an impulsively hedonistic nature, and their problems do not appear
    to stem from difficulties in interpersonal adjustment or from psychopathol-
    ogy. Offenders matching this type tend to have a more ‘benign’ record
    than other convicted felons. . . . There appears to be no pressing need for
    psychological treatment and restrictive administrative management . . . .
    Research supports the view that Type I inmates tend to adjust well to
    prison and present few disciplinary problems.’’ According to Phillips, prison
    officials rely on a prisoner’s Megargee typology in determining his or her
    status as an inmate.