Jordan v. Commissioner of Correction ( 2022 )


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    BRYAN JORDAN v. COMMISSIONER
    OF CORRECTION
    (SC 20485)
    Robinson, C. J., and McDonald, D’Auria,
    Kahn, Ecker and Keller, Js.
    Syllabus
    The petitioner, who had been convicted of manslaughter in the first degree
    with a firearm in connection with the shooting death of the victim,
    sought a writ of habeas corpus, claiming that his criminal trial counsel,
    P, had provided ineffective assistance insofar as she failed to conduct
    a proper investigation, to present available evidence supporting his self-
    defense claim, and to raise a third-party culpability defense. On the day
    of the shooting, the petitioner was arguing with the victim. Certain
    individuals who witnessed the incident agreed that an initial gunshot
    was fired by someone other than the petitioner or the victim. Several
    witnesses then saw the petitioner pull out a gun and fire in the direction
    of the victim. The petitioner fled the scene, and the witnesses heard
    more gunshots. At the habeas trial, the habeas court heard testimony
    from the petitioner, as well as eight witnesses, including six individuals,
    A, X, Y, J, W and R, who witnessed the events surrounding the shooting
    but who were not called by P to testify during the petitioner’s criminal
    trial. A was the petitioner’s sister, X was A’s daughter and the petitioner’s
    niece, Y was the sister to A and the petitioner, J was a friend of the
    petitioner and the victim, W was a close friend of the victim, and R was
    an acquaintance of both the petitioner and the victim. The court did
    not hear testimony from P because she had died prior to the habeas
    trial. The habeas court rendered judgment granting the habeas petition,
    reasoning that P’s failure to call A, X, Y, J, W and R to testify at the
    petitioner’s criminal trial prejudiced him by unduly diminishing his con-
    stitutional right to present a defense. On the granting of certification,
    the respondent appealed to the Appellate Court, which reversed the
    habeas court’s judgment, concluding that the petitioner had not provided
    sufficient evidence to rebut the strong presumption that P had exercised
    her reasonable, professional judgment. On the granting of certification,
    the petitioner appealed to this court. Held:
    1. This court clarified that, in cases such as the present one, in which the
    attorney who allegedly provided ineffective assistance is unavailable to
    testify at the petitioner’s habeas trial, the framework of the inquiry into
    counsel’s performance is not altered merely because of that unavailabil-
    ity, and the Appellate Court in the present case placed undue emphasis
    on the petitioner’s failure to present P’s testimony, as the petitioner’s
    claim regarding P’s performance turned on the objective reasonableness
    of the possible strategic reasons that P might have had rather than on
    P’s subjective state of mind; moreover, this court’s plenary review of
    the petitioner’s ineffective assistance claims required it to examine the
    record of his criminal trial in the absence of P’s testimony, as that record
    served as an informative window through which this court could identify
    P’s possible strategic reasons and consider the objective reasonableness
    of those reasons, and such an approach was consistent with that taken
    in Connecticut and federal case law; furthermore, a habeas court’s
    inquiry into the reasonableness of counsel’s actions is not limited to a
    review of the criminal trial record, although the habeas court’s evaluation
    of counsel’s performance should begin with a thorough review of that
    record, as a court’s conclusion is strong when it is based in evidence
    divined from the record, and when the criminal trial record does not
    reveal the reasons for counsel’s decisions, the habeas court is required
    to affirmatively entertain other possible reasons and to rely on the
    presumption of reasonable, professional assistance.
    2. The petitioner could not prevail on his claim that P’s performance was
    constitutionally deficient on the ground that she had failed to adequately
    investigate and to call six eyewitnesses whose testimony would have
    supported his self-defense claim: P’s failure to investigate X and Y was
    objectively reasonable, as P reasonably might have declined to investi-
    gate them given that their potential bias as close family to the petitioner
    might have undermined their credibility, that they were young at the
    time of the shooting, and that their testimony did not directly support
    a claim of self-defense; moreover, P’s decision not to call A and J was
    objectively reasonable, as A’s testimony did not directly support a claim
    of self-defense, P reasonably could have concluded that A’s bias as the
    petitioner’s sister might have undermined her credibility such that the
    damaging effect of her testimony would have outweighed its benefit,
    and the criminal trial record strongly supported the possibility that P
    made a strategic decision not to call J so that P would have a stronger
    basis on which to attack the sufficiency of the state’s evidence regarding
    the requisite intent to commit murder, even though such a decision
    might have weakened the petitioner’s self-defense claim; furthermore,
    irrespective of P’s performance with respect to W and R, her failure to
    investigate or to call them as witnesses did not prejudice the petitioner,
    as this court could not conclude that there was a reasonable probability
    that the result of the petitioner’s criminal trial would have been different
    if P had called W or R to testify in light of the facts that their testimony
    that the victim had a gun at the scene was duplicative of the testimony
    of the state’s key witnesses at the petitioner’s criminal trial, that W’s
    testimony would have contradicted the petitioner’s criminal trial testi-
    mony regarding a critical fact, and that R observed the shooting from
    a distance and could not identify the individuals who were present at
    the scene.
    3. There was no merit to the petitioner’s claim that P’s performance was
    constitutionally deficient on the ground that P had unreasonably failed
    to raise a third-party culpability defense as a result of her inadequate
    investigation and decision not to call J and W as witnesses at the criminal
    trial; although J’s and W’s testimony that the victim’s brother, K, fired
    his gun and the medical examiner’s testimony regarding the path through
    which the bullet travelled after entering the victim’s body may have
    supported an inference that the fatal gunshot was fired by K, not the
    petitioner, P reasonably may have believed that the third-party culpabil-
    ity defense was weaker than the petitioner’s self-defense claim because
    the state had strong evidence to counter a third-party culpability narra-
    tive, as all of the witnesses testified that the victim did not fall to the
    ground until after the petitioner fired his gun, suggesting it was the
    petitioner’s shot, and not the first shot fired, that struck and killed
    the victim.
    Argued May 3—officially released November 5, 2021*
    Procedural History
    Amended petition for a writ of habeas corpus,
    brought to the Superior Court in the judicial district
    of Tolland and tried to the court, Kwak, J.; judgment
    granting the petition, from which the respondent, on
    the granting of certification, appealed to the Appellate
    Court, Lavine, Prescott and Sheldon, Js., which reversed
    the habeas court’s judgment and remanded the case
    with direction to deny the petition, and the petitioner,
    on the granting of certification, appealed to this court.
    Affirmed.
    Daniel J. Krisch, assigned counsel, for the appellant
    (petitioner).
    James A. Killen, senior assistant state’s attorney,
    with whom, on the brief, were Patrick J. Griffin, state’s
    attorney, and Rebecca A. Barry, supervisory assistant
    state’s attorney, for the appellee (respondent).
    Opinion
    McDONALD, J. This certified appeal requires us to
    consider how a habeas petitioner may satisfy his burden
    to establish a claim of ineffective assistance of counsel
    under Strickland v. Washington, 
    466 U.S. 668
    , 
    104 S. Ct. 2052
    , 
    80 L. Ed. 2d 674
     (1984), when the allegedly
    ineffective counsel has died prior to the habeas trial.
    The petitioner, Bryan Jordan, was engaged in an argu-
    ment with the victim, Curtis Hannons, when an initial
    gunshot fired from elsewhere prompted the petitioner
    to pull out his gun and fire it once at the victim’s head.
    The petitioner was convicted of manslaughter in the
    first degree, in addition to another crime, and sentenced
    to forty-five years of imprisonment, and he thereafter
    filed a petition for a writ of habeas corpus on the basis
    of ineffective assistance of his trial counsel. The habeas
    court granted the petition for a writ of habeas corpus,
    reasoning that trial counsel’s failure to call six addi-
    tional eyewitnesses to testify at the underlying criminal
    trial prejudiced the petitioner’s defense. The Appellate
    Court subsequently reversed the habeas court’s judg-
    ment on the ground that the petitioner, as a conse-
    quence of his trial counsel’s death, had not provided
    sufficient evidence to rebut the strong presumption that
    his trial counsel had exercised her reasonable profes-
    sional judgment. Jordan v. Commissioner of Correc-
    tion, 
    197 Conn. App. 822
    , 871–72, 
    234 A.3d 78
     (2020).
    On appeal to this court, the petitioner claims that the
    Appellate Court’s standard places an insurmountable
    obstacle in the path of a habeas petitioner whose trial
    counsel is unavailable to testify. For the following rea-
    sons, we clarify the applicable standard and conclude
    that the petitioner has failed to satisfy the Strickland
    test with respect to either claim of ineffective assistance
    of counsel.
    The Appellate Court’s decision affirming the petition-
    er’s conviction on direct appeal sets forth the facts and
    procedural history; State v. Jordan, 
    117 Conn. App. 160
    ,
    161–62, 
    978 A.2d 150
    , cert. denied, 
    294 Conn. 904
    , 
    982 A.2d 648
     (2009); which we summarize in relevant part.
    On the day of the shooting, the petitioner was in an
    argument with the victim and the victim’s brother, Jason
    Kelly. The argument ended when the petitioner got into
    his car and drove away. A few minutes later, the peti-
    tioner returned, and another heated discussion took
    place between the petitioner and the victim. Several
    people congregated around the petitioner and the vic-
    tim, attempting to calm them down.
    The eyewitnesses gave varying accounts of precisely
    what happened next. All agreed, however, that an initial
    gunshot was fired by someone other than the petitioner
    or the victim. Several witnesses then saw the petitioner
    pull out a gun and fire it once in the direction of the
    victim’s head. The petitioner fled on foot, and the wit-
    nesses heard several more gunshots. The victim was
    transported to a hospital, where he died.
    The petitioner was arrested and charged with murder
    in violation of General Statutes § 53a-54a (a), as well
    as several lesser included offenses.1 The petitioner
    asserted a claim of self-defense. Id., 170. The jury ulti-
    mately found the petitioner not guilty of murder but
    guilty of manslaughter in the first degree with a firearm
    in violation of General Statutes § 53a-55a (a). Id., 162.
    The trial court sentenced the petitioner to the maximum
    permitted sentence of forty years of imprisonment with
    respect to this charge. Jordan v. Commissioner of Cor-
    rection, supra, 
    197 Conn. App. 824
     n.1. The Appellate
    Court affirmed the petitioner’s conviction on direct
    appeal. State v. Jordan, 
    supra,
     
    117 Conn. App. 172
    .
    The Appellate Court’s decision reversing the habeas
    court’s judgment in the present case sets forth addi-
    tional facts and procedural history pertaining to the
    habeas proceeding; Jordan v. Commissioner of Correc-
    tion, supra, 
    197 Conn. App. 824
    –28; which we summa-
    rize in relevant part. The petitioner filed the present
    amended petition for a writ of habeas corpus against
    the respondent, the Commissioner of Correction, in
    2015. The petition raised, in relevant part, two claims
    of ineffective assistance of trial counsel in violation of
    the United States and Connecticut constitutions. Specif-
    ically, the petitioner first alleged that his criminal trial
    counsel, Diane Polan, failed to conduct a proper investi-
    gation and failed to present available evidence support-
    ing his self-defense claim. The petitioner also alleged
    that Polan failed to raise a third-party culpability defense
    as a result of the same improper investigation and fail-
    ure to present available evidence.
    The habeas court, Kwak, J., conducted a trial and
    heard testimony from the petitioner, as well as eight
    witnesses called on his behalf, including Polan’s private
    investigator, an attorney testifying as an expert on pro-
    fessional standards, and six individuals who witnessed
    the events surrounding the shooting but were not called
    by Polan to testify during the criminal trial. The court
    did not hear testimony from Polan because she had
    died prior to the habeas trial. The court subsequently
    granted the petition for a writ of habeas corpus on the
    basis of both claims of ineffective assistance of counsel.
    Specifically, the court determined that ‘‘the petitioner
    had met his burden of demonstrating that Polan had
    rendered constitutionally deficient performance by fail-
    ing to investigate properly or to present available evi-
    dence in support of the petitioner’s claim of self-defense
    and by failing properly to investigate, raise, or present
    evidence in support of a third-party culpability defense.’’
    
    Id., 828
    . The court further determined that the petitioner
    had met his burden of demonstrating that Polan’s defi-
    cient performance ‘‘had prejudiced him by unduly dimin-
    ishing his due process right to establish a defense.’’ 
    Id.
    The Appellate Court reversed the judgment of the
    habeas court with respect to both claims of ineffective
    assistance of counsel. 
    Id., 872
    . The court emphasized
    that, because Polan was unavailable to testify at the
    habeas trial, the petitioner had not met his burden of
    establishing how her investigative efforts were inade-
    quate. 
    Id., 848
    . Likewise, the court reasoned that the
    petitioner had not met his burden of disproving the
    objective reasonableness of any strategic reasons Polan
    might have had for her decisions regarding the investi-
    gation, which witnesses to call, and the potential third-
    party culpability defense. 
    Id.
     The court then considered
    the testimony of the habeas witnesses at length and
    concluded that the petitioner failed to demonstrate that
    Polan’s performance had been deficient with respect
    to either claim of constitutionally ineffective assistance.
    
    Id., 860, 871
    .
    Thereafter, the petitioner filed a petition for certifica-
    tion to appeal, which we granted, limited to the follow-
    ing issue: ‘‘Did the Appellate Court properly reverse the
    habeas court’s determination that the performance of
    the petitioner’s criminal trial counsel fell outside the
    range of competent counsel under Strickland v. Wash-
    ington, 
    [supra,
     
    466 U.S. 668
    ]?’’ Jordan v. Commissioner
    of Correction, 
    335 Conn. 931
    , 
    236 A.3d 218
     (2020).
    On appeal, the petitioner contends that the Appellate
    Court applied an incorrect standard to his claims of
    ineffective assistance of counsel. Specifically, the peti-
    tioner contends that the habeas court required him to
    negate every ‘‘ ‘plausible’ ’’ reason Polan might have had
    for her failure to investigate and call six witnesses with
    respect to his self-defense claim, as well as her failure
    to raise a third-party culpability defense that would
    have been supported by those same witnesses. With
    respect to his first claim of ineffective assistance, the
    petitioner asserts that Polan’s failure to investigate the
    six witnesses who observed the events surrounding the
    shooting and to call them to support his self-defense
    claim constituted objectively unreasonable representa-
    tion. With respect to his second claim of ineffective
    assistance, the petitioner asserts that Polan’s failure to
    investigate and to call the same witnesses, as well as
    her failure to raise a claim of third-party culpability
    supported by those witnesses, was objectively unrea-
    sonable. The respondent disagrees, contending that the
    Appellate Court properly applied the strong presump-
    tion of reasonable competence and concluded that the
    petitioner had failed to meet his heavy burden of over-
    coming that presumption with respect to either claim
    of constitutionally ineffective assistance.
    I
    We begin with the standard of review and principles
    of law that govern the petitioner’s claims. ‘‘The habeas
    court is afforded broad discretion in making its factual
    findings, and those findings will not be disturbed unless
    they are clearly erroneous. . . . [In addition], [t]he
    habeas judge, as the trier of facts, is the sole arbiter of
    the credibility of witnesses and the weight to be given
    to their testimony. . . . The application of the habeas
    court’s factual findings to the pertinent legal standard,
    however, presents a mixed question of law and fact,
    which is subject to plenary review.’’ (Citations omitted;
    internal quotation marks omitted.) Gaines v. Commis-
    sioner of Correction, 
    306 Conn. 664
    , 677, 
    51 A.3d 948
    (2012).
    The sixth and fourteenth amendments to the United
    States constitution, as well as article first, § 8, of the
    Connecticut constitution, guarantee a criminal defen-
    dant the assistance of counsel for his or her defense.
    See U.S. Const., amend. VI; Conn. Const., art. I, § 8. ‘‘It
    is axiomatic that the right to counsel is the right to the
    effective assistance of counsel. . . . A claim of ineffec-
    tive assistance of counsel consists of two components:
    a performance prong and a prejudice prong. To satisfy
    the performance prong, a claimant must demonstrate
    that counsel made errors so serious that counsel was
    not functioning as the counsel guaranteed . . . by the
    [s]ixth [a]mendment.’’ (Citation omitted; internal quota-
    tion marks omitted.) Ledbetter v. Commissioner of Cor-
    rection, 
    275 Conn. 451
    , 458, 
    880 A.2d 160
     (2005), cert.
    denied sub nom. Ledbetter v. Lantz, 
    546 U.S. 1187
    , 
    126 S. Ct. 1368
    , 
    164 L. Ed. 2d 77
     (2006). ’’When a [habeas
    petitioner] complains of the ineffectiveness of [trial]
    counsel’s assistance, the [petitioner] must show that
    counsel’s representation fell below an objective stan-
    dard of reasonableness.’’ Strickland v. Washington,
    
    supra,
     
    466 U.S. 687
    –88. ‘‘In other words, the petitioner
    must demonstrate that [trial counsel’s] [performance]
    was not reasonably competent or within the range of
    competence displayed by lawyers with ordinary training
    and skill in the criminal law.’’ (Internal quotation marks
    omitted.) Ledbetter v. Commissioner of Correction,
    
    supra, 460
    . Moreover, ‘‘the performance inquiry must
    be whether counsel’s assistance was reasonable consid-
    ering all the circumstances.’’ Strickland v. Washington,
    
    supra, 688
    .
    ‘‘To satisfy the prejudice prong, a claimant must dem-
    onstrate that there is a reasonable probability that, but
    for counsel’s unprofessional errors, the result of the
    proceeding would have been different.’’ (Internal quota-
    tion marks omitted.) Ledbetter v. Commissioner of Cor-
    rection, 
    supra,
     
    275 Conn. 458
    . ‘‘[T]he question is whether
    there is a reasonable probability that, [without] the
    errors, the [fact finder] would have had a reasonable
    doubt respecting [the petitioner’s] guilt.’’ Strickland v.
    Washington, 
    supra,
     
    466 U.S. 695
    . ‘‘A reasonable proba-
    bility is a probability sufficient to undermine confidence
    in the outcome.’’ Id., 694. ‘‘In making this determination,
    a court hearing an ineffectiveness claim must consider
    the totality of the evidence before the judge or jury.
    . . . Some errors will have had a pervasive effect on
    the inferences to be drawn from the evidence, altering
    the entire evidentiary picture, and some will have had
    an isolated, trivial effect.’’ Id., 695–96. ‘‘[T]he ultimate
    focus of inquiry must be on the fundamental fairness
    of the proceeding whose result is being challenged.’’
    Id., 696. ‘‘Although a petitioner can succeed only if he
    satisfies both prongs, a reviewing court can find against
    a petitioner on either ground.’’ (Internal quotation marks
    omitted.) Johnson v. Commissioner of Correction, 
    330 Conn. 520
    , 538, 
    198 A.3d 52
     (2019).
    Our analysis of the petitioner’s claims focuses largely
    on Polan’s performance. The United States Supreme
    Court has elaborated further principles that inform this
    prong of the Strickland test. ‘‘Judicial scrutiny of coun-
    sel’s performance must be highly deferential. It is all
    too tempting for a [petitioner] to second-guess [trial]
    counsel’s assistance after conviction . . . and it is all
    too easy for a court, examining counsel’s defense after
    it has proved unsuccessful, to conclude that a particular
    act or omission of counsel was unreasonable. . . . A
    fair assessment of attorney performance requires that
    every effort be made to eliminate the distorting effects
    of hindsight, to reconstruct the circumstances of coun-
    sel’s challenged conduct, and to evaluate the conduct
    from counsel’s perspective at the time. Because of the
    difficulties inherent in making the evaluation, a court
    must indulge a strong presumption that counsel’s con-
    duct falls within the wide range of reasonable profes-
    sional assistance; that is, the [petitioner] must over-
    come the presumption that, under the circumstances,
    the challenged action might be considered sound trial
    strategy.’’ (Citation omitted; emphasis added; internal
    quotation marks omitted.) Strickland v. Washington,
    
    supra,
     
    466 U.S. 689
    .
    In a typical habeas trial for a claim of ineffective
    assistance, the petitioner’s criminal trial counsel would
    testify about whether the challenged action was part
    of a strategic decision or litigation tactic, rather than
    a result of inadvertence or ‘‘sheer neglect.’’ (Internal
    quotation marks omitted.) Harrington v. Richter, 
    562 U.S. 86
    , 109, 
    131 S. Ct. 770
    , 
    178 L. Ed. 2d 624
     (2011);
    see, e.g., 
    id.
     (‘‘[t]here is a ‘strong presumption’ that
    counsel’s attention to certain issues to the exclusion of
    others reflects trial tactics rather than ‘sheer neglect’ ’’);
    Henry v. Scully, 
    918 F. Supp. 693
    , 715 (S.D.N.Y. 1995)
    (‘‘[n]ormally, before finding counsel inadequate, an evi-
    dentiary hearing would be held’’ to determine whether
    counsel’s action was ‘‘strategic, that is, that it repre-
    sented a conscious decision on counsel’s part’’), aff’d,
    
    78 F.3d 51
     (2d Cir. 1996); Spearman v. Commissioner
    of Correction, 
    164 Conn. App. 530
    , 553, 
    138 A.3d 378
    (noting that petitioner conceded that trial counsel’s
    decision was ‘‘a matter of strategy made at trial’’ and
    then considering ‘‘whether this strategic decision was
    reasonable’’), cert. denied, 
    321 Conn. 923
    , 
    138 A.3d 284
    (2016). Assuming the habeas court finds testimony
    regarding trial counsel’s strategy credible, the petitioner
    would then attempt to overcome the strong presump-
    tion that the asserted strategy was objectively reason-
    able. See, e.g., Harrington v. Richter, 
    supra, 104
    ; Strick-
    land v. Washington, 
    supra,
     
    466 U.S. 689
    .
    Neither this court nor the United States Supreme
    Court has considered how a habeas petitioner may sat-
    isfy his or her burden under Strickland when the alleg-
    edly ineffective trial counsel has died or is otherwise
    unavailable to testify at the habeas trial. However, based
    on the nature of the performance prong of Strickland,
    we begin by noting that the framework of that inquiry
    is not significantly altered by the unavailability of the
    allegedly ineffective counsel. As the United States
    Supreme Court has observed, Strickland ‘‘calls for an
    inquiry into the objective reasonableness of counsel’s
    performance, not counsel’s subjective state of mind.’’
    (Emphasis added.) Harrington v. Richter, 
    supra,
     
    562 U.S. 110
    . As a result, the habeas court cannot ‘‘insist
    counsel confirm every aspect of the strategic basis for
    his or her actions.’’ Id., 109. Likewise, trial counsel’s
    testimony may identify specific strategic or tactical rea-
    sons counsel had for the challenged action, but the
    habeas court is not confined to consider only those
    reasons identified. Rather, in all circumstances, the
    strong presumption of Strickland that counsel exer-
    cised reasonable professional judgment requires the
    habeas court ‘‘to affirmatively entertain the range of
    possible reasons’’ trial counsel might have had for the
    challenged action. (Internal quotation marks omitted.)
    Cullen v. Pinholster, 
    563 U.S. 170
    , 196, 
    131 S. Ct. 1388
    ,
    
    179 L. Ed. 2d 557
     (2011). Given the court’s obligation
    affirmatively to contemplate possible strategic reasons
    for the challenged action, the strategic reasons identi-
    fied by counsel’s habeas testimony do not necessarily
    restrict or resolve the Strickland inquiry. Accordingly,
    when trial counsel is not available to testify, the absence
    of such testimony does not alter the relevant inquiry.
    In that circumstance, as always, the court must contem-
    plate the possible strategic reasons that might have
    supported the challenged action and then consider
    whether those reasons were objectively reasonable.
    See, e.g., id.; Strickland v. Washington, 
    supra,
     
    466 U.S. 689
    .
    In applying Strickland and its progeny to the context
    of unavailable counsel, the Appellate Court in this case
    placed undue emphasis on the petitioner’s failure to
    present testimony by his deceased attorney, reasoning
    that this failure was effectively fatal to his claim: ‘‘[S]pe-
    cific evidence of Polan’s reasons for pursuing or not
    pursuing any particular defense strategy—something
    generally obtained at the habeas trial through the testi-
    mony of trial counsel or someone directly familiar with
    her strategy—was utterly lacking. Ordinarily, such evi-
    dence is crucial to meet the high hurdle imposed on a
    petitioner to show that his counsel’s exercise of profes-
    sional judgment fell outside the wide range considered
    competent for constitutional purposes.’’ Jordan v. Com-
    missioner of Correction, supra, 
    197 Conn. App. 870
    –71;
    see also 
    id., 871
     (‘‘the petitioner was unable, due to a
    lack of evidence, to negate all possibility that Polan
    engaged in a reasonable . . . defense strategy’’ (empha-
    sis added)). As we noted, however, the performance
    prong of Strickland ‘‘calls for an inquiry into the objec-
    tive reasonableness of counsel’s performance, not
    counsel’s subjective state of mind.’’ Harrington v. Rich-
    ter, supra, 
    562 U.S. 110
    . In other words, the petitioner’s
    claim turned on the objective reasonableness of the
    possible strategic reasons Polan might have had and
    that the habeas court was required affirmatively to con-
    sider. Evidence regarding whether Polan actually, sub-
    jectively made the challenged decisions based on those
    reasons—evidence that was lacking by virtue of Polan’s
    death, and that the Appellate Court indicated was ‘‘cru-
    cial’’ to the petitioner’s claim; Jordan v. Commissioner
    of Correction, supra, 871—would not have addressed
    the relevant inquiry, which was objective reasonable-
    ness. As the petitioner in this case persuasively con-
    tends, requiring every habeas petitioner, whose alleg-
    edly ineffective trial counsel is unavailable to testify
    at the habeas trial, to provide evidence of counsel’s
    subjective state of mind would undoubtedly and imper-
    missibly heighten the petitioner’s burden under Strick-
    land.
    In sum, our plenary review requires us, first, affirma-
    tively to contemplate the possible strategic reasons that
    might have supported Polan’s decisions regarding
    investigating witnesses, calling witnesses, and present-
    ing third-party culpability, and, second, to consider
    whether those reasons were objectively reasonable.2
    See, e.g., Cullen v. Pinholster, 
    supra,
     
    563 U.S. 196
    ;
    Strickland v. Washington, 
    supra,
     
    466 U.S. 689
    . In order
    affirmatively to contemplate possible strategic reasons
    for Polan’s actions, we begin by examining the record
    of the petitioner’s criminal trial. See, e.g., Franko v.
    Commissioner of Correction, 
    165 Conn. App. 505
    , 519–
    20, 
    139 A.3d 798
     (2016). In the absence of testimony by
    trial counsel, the record of the underlying proceeding
    serves as an informative window into the representation
    alleged to have been ineffective, allowing the reviewing
    court to identify possible strategic reasons, consider the
    objective reasonableness of those reasons, and firmly
    ground its ultimate conclusion.
    This approach is consistent with the Connecticut
    cases and federal court cases that have considered this
    circumstance. For example, in Franko, a habeas peti-
    tioner claimed ineffective assistance regarding a jury
    instruction issue, and trial counsel was unavailable to
    testify at the habeas proceeding. Id., 509, 515. The
    Appellate Court reasoned that, ‘‘[l]acking the ability to
    determine directly the reasons for trial counsel’s
    actions, courts must examine all other available evi-
    dence from the trial record in order to determine
    whether the conduct complained of might be consid-
    ered sound trial strategy.’’ Id., 519. In doing so, the court
    found objectively reasonable, strategic reasons for trial
    counsel’s actions contained in the transcript of his clos-
    ing argument. Id., 522–24. In addition, in Bullock v.
    Whitley, 
    53 F.3d 697
     (5th Cir. 1995), a habeas petitioner
    claimed ineffective assistance regarding trial counsel’s
    preparation for an alternative defense. 
    Id., 700
    . The
    Fifth Circuit emphasized that, although trial counsel
    was deceased at the time of the habeas trial, his testi-
    mony was ‘‘not necessary to [the court’s] determination
    that [counsel’s] decision might be considered sound
    trial strategy.’’ 
    Id., 701
    . After reviewing the criminal
    trial record, the court concluded that trial counsel was
    prepared and made objectively reasonable decisions
    regarding a difficult case. See 
    id.,
     701 n.11 (‘‘[a]lthough
    there was no opportunity to obtain [trial counsel’s] testi-
    mony regarding his motivations, our review of the
    record has left us with the distinct impression that
    [counsel] did the best he could with what he had’’).
    Finally, in Henry v. Scully, supra, 
    918 F. Supp. 693
    , a
    habeas petitioner claimed ineffective assistance
    because his criminal trial counsel failed to request a
    jury instruction that a codefendant’s confession could
    be used only against the codefendant and not against
    the petitioner. 
    Id., 714
    . In granting the habeas petition,
    the United States District Court for the Southern Dis-
    trict of New York reasoned that, even accepting that
    the criminal trial record supported the argument that
    trial counsel’s decisions were based on a strategy of
    presenting a joint defense for the two codefendants,
    such strategy was not objectively reasonable under
    Strickland. 
    Id., 715
    . These cases demonstrate that, irre-
    spective of the merits of a habeas petition, in the
    absence of trial counsel’s testimony, a reviewing court
    finds the strongest foundation for the outcome of the
    petition in the record of the underlying proceeding.
    Regardless of the availability of trial counsel to testify
    at the habeas proceeding, the habeas court’s inquiry into
    the reasonableness of counsel’s actions is not limited
    to a review of the criminal trial record. See Cullen v.
    Pinholster, 
    supra,
     
    563 U.S. 196
     (court must ‘‘affirma-
    tively entertain the range of possible reasons’’ counsel
    might have had for challenged action (internal quotation
    marks omitted)); Moye v. Commissioner of Correction,
    
    168 Conn. App. 207
    , 222, 
    145 A.3d 362
     (2016) (trial
    counsel’s action was objectively reasonable despite
    record containing ‘‘little or no circumstantial evidence
    from which the habeas court could have divined’’ coun-
    sel’s reasons), cert. denied, 
    324 Conn. 905
    , 
    153 A.3d 653
    (2017). We emphasize, however, that a habeas court’s
    evaluation of an ineffective assistance claim in a circum-
    stance of unavailable trial counsel ought to begin with
    a thorough review of the record of the underlying pro-
    ceeding because, as the cases that have considered this
    circumstance demonstrate, the court’s conclusion is
    surely strongest when it is based in evidence divined
    from that record. See, e.g., Bullock v. Whitley, 
    supra,
    53 F.3d 701
    ; Henry v. Scully, supra, 
    918 F. Supp. 715
    ;
    Franko v. Commissioner of Correction, supra, 
    165 Conn. App. 520
    . Grounding the court’s reasoning in the
    record maintains the ideal balance between the court’s
    responsibility affirmatively to entertain possible strate-
    gic reasons and its obligation to avoid ‘‘[indulging] post
    hoc rationalization for counsel’s [decision-making] that
    contradicts the available evidence of counsel’s actions
    . . . .’’ (Emphasis added; internal quotation marks
    omitted.) Harrington v. Richter, 
    supra,
     
    562 U.S. 109
    ;
    see also Franko v. Commissioner of Correction, supra,
    520 (reviewing court ‘‘should not speculate as to trial
    counsel’s reasons for making [litigation] decisions’’).
    Likewise, beginning the court’s analysis with a thorough
    review of the record best maintains the original Strick-
    land burdens in the absence of counsel’s testimony,
    without unfairly prejudicing either the petitioner or the
    respondent. Compare Slevin v. United States, 
    71 F. Supp. 2d 348
    , 358 n.9 (S.D.N.Y. 1999) (recognizing that
    ‘‘the death of a petitioner’s trial counsel is just as, if
    not more, likely to prejudice the respondent’’), aff’d,
    
    234 F.3d 1263
     (2d Cir. 2000), with Jordan v. Commis-
    sioner of Correction, supra, 
    197 Conn. App. 871
     (recog-
    nizing that ‘‘the death of counsel . . . made the peti-
    tioner’s case more difficult to prove than it might
    otherwise have been’’). That said, we recognize that the
    record of the underlying proceeding may not always
    reveal the reasons for counsel’s decisions, in which
    case the court will be required affirmatively to entertain
    other possible reasons and to rely on the presumption
    of reasonable professional assistance. See Moye v. Com-
    missioner of Correction, supra, 222.
    II
    We now turn to the petitioner’s claim of ineffective
    assistance of counsel with respect to his self-defense
    claim. Specifically, the petitioner contends that Polan’s
    performance was constitutionally deficient because she
    failed to adequately investigate and to call six witnesses
    whose testimony would have supported his self-defense
    claim. The respondent disagrees, contending that the
    petitioner cannot overcome Strickland’s strong pre-
    sumption of reasonable competence because decisions
    about which witnesses to call are quintessential trial
    strategy decisions entitled to great deference.
    The substantive principles governing a self-defense
    claim are well settled. ‘‘Pursuant to [General Statutes]
    § 53a-19 (a) . . . a person may justifiably use deadly
    physical force in self-defense only if he reasonably
    believes both that (1) his attacker is using or about to
    use deadly physical force against him, or is inflicting
    or about to inflict great bodily harm, and (2) that deadly
    physical force is necessary to repel such attack.’’ (Foot-
    note omitted; internal quotation marks omitted.) State
    v. Saunders, 
    267 Conn. 363
    , 372–73, 
    838 A.2d 186
    , cert.
    denied, 
    541 U.S. 1036
    , 
    124 S. Ct. 2113
    , 
    158 L. Ed. 2d 722
     (2004). We repeatedly have stated that the second
    requirement is ‘‘subjective-objective,’’ meaning that it
    requires the jury to ‘‘make two separate affirmative
    determinations . . . . First, the jury must determine
    whether, on the basis of all of the evidence presented,
    the defendant in fact had believed that he had needed
    to use deadly physical force, as opposed to some lesser
    degree of force, in order to repel the victim’s alleged
    attack. . . . If . . . the jury determines that the defen-
    dant in fact had believed that the use of deadly force
    was necessary, the jury must make a further determina-
    tion as to whether that belief was reasonable, from the
    perspective of a reasonable person in the defendant’s
    circumstances. . . . Thus, if a jury determines that the
    defendant’s honest belief that he had needed to use
    deadly force, instead of some lesser degree of force,
    was not a reasonable belief, the defendant is not entitled
    to the protection of § 53a-19.’’3 (Internal quotation
    marks omitted.) Id., 373–74.
    A
    The following additional facts and procedural history
    are relevant to our resolution of this claim, reflecting
    our examination of the petitioner’s underlying criminal
    trial record to divine possible strategic reasons that
    might have supported Polan’s investigative and trial
    decisions. In the petitioner’s criminal trial, the state
    relied on several eyewitnesses. Relevant to this appeal,
    one eyewitness, Roger B. Williams, Sr., lived in the
    neighborhood where the shooting took place, knew
    both the petitioner and the victim, and testified that he
    was present for the entire incident. Jordan v. Commis-
    sioner of Correction, supra, 
    197 Conn. App. 840
    . Wil-
    liams testified that the victim drew his gun during the
    argument, before the petitioner drew his. 
    Id., 841
    . Wil-
    liams also indicated that one of the petitioner’s habeas
    witnesses had fired the initial gunshot, at which point
    the petitioner drew a gun and fired it at the victim’s
    head. 
    Id.
     In addition, the state called Kimberly Steven-
    son, the victim’s girlfriend and the mother of their chil-
    dren, who witnessed the shooting from her bedroom
    window. 
    Id.
     She testified that, although she heard the
    initial gunshot, she did not see who fired it, and that
    the petitioner subsequently drew a gun and fired it at
    the victim’s head. 
    Id.
     Stevenson also testified that she
    had not seen the victim with a gun during the afternoon
    leading up to the shooting. 
    Id.
     Williams and Stevenson
    both testified that Kelly, the victim’s brother, was not
    present at the shooting. 
    Id.,
     841–42. At the state’s
    request, the trial court admitted a recorded statement,
    given by a third eyewitness to the police while he was
    in custody on unrelated charges, that generally corrobo-
    rated Williams’ and Stevenson’s accounts. 
    Id., 842
    . Finally,
    the state called two police officers who responded to
    the scene shortly after the shooting; 
    id., 843
    ; and a
    detective who testified about his efforts to investigate
    the shooting and to locate the petitioner. 
    Id., 826
    .
    The petitioner testified on his own behalf at his crimi-
    nal trial. Specifically, he testified that he did not know
    whether the victim had a gun, but he had ‘‘observed
    [the victim] fumbling with his pocket in a way that
    suggested he might be armed.’’ 
    Id., 843
    . The petitioner
    testified that he likewise believed that Kelly had a gun.
    
    Id.
     He further testified that he drew his gun only in
    response to the first gunshot and that he fired in the
    direction of the victim because he believed the first
    gunshot had been fired from that direction. 
    Id.
     On cross-
    examination, the petitioner testified that he was not in
    constant possession of his gun throughout the day and
    that he sometimes left his gun in the glove compartment
    of his car. 
    Id., 844
    . Finally, the medical examiner who
    performed the autopsy of the victim testified regarding
    the nature, location, and trajectory of the victim’s bullet
    wound. 
    Id.
    Polan’s cross-examination of the state’s witnesses
    as well as her closing argument demonstrate that her
    overall trial strategy was based on three related theories
    of the case. First, Polan highlighted the reasonable
    doubt that the bullet from the petitioner’s gun was the
    one that actually killed the victim, relying on the eyewit-
    ness’ testimony that the petitioner had been standing
    directly in front of the victim and the medical examin-
    er’s testimony regarding the leftward and upward path
    of the bullet wound. 
    Id.,
     844–45. Second, Polan high-
    lighted the reasonable doubt that the petitioner ever
    developed the specific intent required for the various
    charges, relying on the eyewitness’ conflicting accounts
    about what had happened, as well as the consistent
    testimony about the rapid pace of events. 
    Id.,
     845–46.
    Third, Polan presented evidence in support of the peti-
    tioner’s self-defense claim, relying on the eyewitness’
    testimony regarding the initial gunshot, the possibility
    that the victim and others in the vicinity were armed,
    and the fact that the petitioner did not fire until fired
    at. 
    Id.
     Polan ended her closing argument by focusing
    on the second and third theories: ‘‘This is a tragic killing,
    it’s a tragedy that [the victim] is . . . not with us today,
    but it’s not a murder. It’s not a murder because the
    state cannot prove the specific intent to kill beyond a
    reasonable doubt, and, again, there is ample evidence
    here that [the petitioner] acted in self-defense. He was
    shot at [and] didn’t know where the shots were coming
    from. It all happened so quickly that he did not form
    a specific intent to kill [the victim]. Yes, he shot in [the
    victim’s] direction; he told you that when he testified
    here yesterday, but his intent was not to kill [the victim].
    [The petitioner’s] intent was to protect himself.’’ (Inter-
    nal quotation marks omitted.) 
    Id., 846
    .
    We next consider the record of the habeas trial, begin-
    ning with the six witnesses whom, the petitioner con-
    tends, Polan should have called to testify about the
    events surrounding the shooting. Three witnesses were
    closely related to the petitioner and to each other:
    Audrey Jordan, the petitioner’s sister; Alexis Jordan,
    Audrey’s daughter and the petitioner’s niece; and Jymi-
    sha Freeman, sister to Audrey and the petitioner.
    Audrey testified that she was inside her mother’s house
    when she heard gunshots. She went outside, saw a body
    on the ground, and walked forward to hug Stevenson
    where she knelt beside the victim’s body. Audrey testi-
    fied that she observed Stevenson jump up, run inside
    her nearby house, and come back to the scene with a
    towel. Stevenson used the towel to pick up a gun lying
    inches from the victim’s body, carried it back inside
    her house, and then returned to the scene without the
    gun or the towel. Audrey also testified that she spoke
    with the state’s detective and Polan about what she had
    observed.
    Alexis was about eight years old and Jymisha was
    about eleven years old at the time of the incident. Both
    witnesses testified that they were inside the same house
    as Audrey when they heard gunshots and went outside.
    Alexis saw the victim’s body and a gun lying a few
    inches from it; Jymisha could not identify the victim,
    and she did not see a gun from her farther distance.
    Alexis corroborated Audrey’s testimony that Stevenson
    wrapped a gun in a cloth and carried it from near the
    victim’s body into her house. Likewise, Jymisha testified
    that she saw Stevenson at the scene with a white towel
    or cloth in her hand. Neither witness spoke with Polan,
    her private investigator, or the police about the incident.
    Flonda Jones also testified at the habeas trial; she
    had provided a written statement to Polan’s private
    investigator dated approximately nine months after the
    incident, which was admitted into evidence at the
    habeas trial. She was a friend of both the petitioner and
    the victim, and she witnessed the two confrontations
    between them, including the shooting. Jones stated that,
    as the petitioner was leaving the first confrontation and
    walking to his car, he said to the victim: ‘‘You going to
    confront me with a gun.’’ She stated that the petitioner
    subsequently returned, and the victim resumed his argu-
    ment with the petitioner. Throughout this confronta-
    tion, Jones observed the victim reaching for a gun in his
    waistband multiple times. In both her written statement
    and her testimony at the habeas trial, Jones stated that
    Kelly fired the initial gunshot from where he stood next
    to and slightly behind the victim.
    Then, according to Jones’ written statement, the vic-
    tim and the petitioner both pulled guns from their waist-
    bands. The petitioner fired his gun, the victim fell to
    the ground, and the petitioner began running away.
    Jones’ testimony at the habeas trial diverges from her
    written statement with respect to who fired the gunshot
    that killed the victim. When confronted with her written
    statement on cross-examination, however, Jones testi-
    fied that the written statement ‘‘sounds about right.’’
    She further testified that she saw a gun fall out of the
    victim’s waistband when he fell. Jones also corrobo-
    rated Audrey’s and Alexis’ testimony that Stevenson
    wrapped the gun in a cloth and carried it into her house.
    Jones testified that she spoke with the police and
    Polan’s private investigator about the incident and that
    she was subpoenaed for the petitioner’s criminal trial
    but not called to testify.
    James Walker, a close friend of the victim, also testi-
    fied at the habeas trial. Walker was Kelly’s cousin, and
    he indicated that he, Kelly, and the victim grew up
    together. Walker testified that he saw the ‘‘heated dis-
    cussion’’ between the petitioner and the victim and
    observed the victim ‘‘flashing’’ the gun at his waistband
    but that the victim never actually drew his weapon. He
    testified that he saw Kelly standing behind the victim
    on the steps of a nearby building throughout the con-
    frontation. Walker testified that he turned away from
    the petitioner and the victim and then heard a gunshot.
    When he turned back around, he saw that the victim
    was on the ground and that Kelly was firing his gun
    from his place on the steps. Walker testified that he
    fled but returned a few minutes later to see Stevenson
    and Williams next to the victim’s body. He saw Williams
    remove something wrapped in a towel from the scene,
    but he did not know what. Walker testified that he
    spoke with the state’s detective about what he had
    observed, but he did not speak with Polan or her private
    investigator. Finally, in response to questions seeking
    to impeach his credibility, Walker testified that he did
    not intend to testify in support of the petitioner because
    he was ‘‘loyal’’ to the victim.
    The sixth witness to testify at the habeas trial was
    Billy Wright. He indicated that he knew both the peti-
    tioner and the victim. He was seventeen at the time of
    the incident, and he testified that he was at a playground
    when he saw the victim on a nearby porch talking to
    someone he could not identify. Wright testified that he
    saw the victim pull a gun from his waistband, at which
    point he decided to leave the playground to get away
    from the incident. He heard gunshots as he was leaving,
    but he did not see who fired them because his back
    was turned, and he did not see anything else from the
    incident or anyone else whom he recognized. Wright
    denied Williams’ testimony from the petitioner’s crimi-
    nal trial that Wright had a gun during the incident and
    that he fired the initial gunshot. He also testified that
    he spoke with the state’s detective about the incident.
    The habeas court found all six of these witnesses credi-
    ble.
    The petitioner testified at the habeas trial regarding
    Polan’s trial preparation. He testified that he told Polan
    the names of certain witnesses to the incident, including
    Jymisha, Jones, Walker, and Wright, and that Polan
    had subpoenaed Audrey. Polan informed the petitioner
    about Jones’ written statement and explained that,
    given Jones’ anticipated testimony, she intended to
    raise a self-defense claim. Specifically, the petitioner
    testified that, ‘‘[w]hen I elected to go to trial, I went to
    the trial under the premise that we were—it was a self-
    defense case based on the testimony of [Jones].’’ The
    petitioner also testified that he asked Polan why she
    did not call Jones, but he could not recall the reason
    Polan provided. He further testified that, when Polan
    indicated to the petitioner that he would testify, he
    asked her, ‘‘why won’t you call the witnesses, and she
    just said concentrate on what we’re doing,’’ which, at
    that time, had been preparing for the petitioner’s own
    testimony. In addition, Mike O’Donnell, the private
    investigator who worked with Polan on the petitioner’s
    criminal trial, testified at the habeas trial. O’Donnell
    testified that he ‘‘never discussed the witness list with
    [Polan]’’ and otherwise remembered almost nothing
    from his work on the petitioner’s case, including any
    conversations with Jones.
    B
    In this appeal, the petitioner contends that, given the
    totality of the record from the underlying criminal trial
    and the habeas trial, it is clear that Polan had failed to
    conduct a proper investigation into the six witnesses
    to the incident. The petitioner further contends that
    Polan should have called those witnesses to support
    his self-defense claim. The petitioner asserts that those
    eyewitnesses were crucial to his self-defense claim
    because they would have established that the victim
    had a gun and was exhibiting threatening behavior
    toward him.
    Because the petitioner’s claims specifically challenge
    Polan’s failure to investigate and to call certain wit-
    nesses, we note that we have articulated further princi-
    ples, as has the United States Supreme Court, that
    inform our review of these specific challenged actions
    under Strickland. In the investigation context, ‘‘[i]nas-
    much as [c]onstitutionally adequate assistance of coun-
    sel includes competent pretrial investigation . . .
    [e]ffective assistance of counsel imposes an obligation
    [on] the attorney to investigate all surrounding circum-
    stances of the case and to explore all avenues that may
    potentially lead to facts relevant to the defense of the
    case.’’ (Citation omitted; internal quotation marks omit-
    ted.) Gaines v. Commissioner of Correction, supra,
    
    306 Conn. 680
    ; see also Skakel v. Commissioner of
    Correction, 
    329 Conn. 1
    , 34, 
    188 A.3d 1
     (2018), cert.
    denied,       U.S.     , 
    139 S. Ct. 788
    , 
    202 L. Ed. 2d 569
    (2019). ‘‘[S]trategic choices made after thorough investi-
    gation of law and facts relevant to plausible options are
    virtually unchallengeable; and strategic choices made
    after less than complete investigation are reasonable
    precisely to the extent that reasonable professional
    judgments support the limitations on investigation.’’
    Strickland v. Washington, 
    supra,
     
    466 U.S. 690
    –91; see
    also Skakel v. Commissioner of Correction, supra, 32.
    Regarding ineffectiveness claims relating to the failure
    to call witnesses, ‘‘[w]hen faced with the question of
    whether counsel performed deficiently by failing to call
    a certain witness, the question is whether this omission
    was objectively reasonable because there was a strate-
    gic reason not to offer such . . . testimony . . . [and]
    whether reasonable counsel could have concluded that
    the benefit of presenting [the witness’ testimony] . . .
    was outweighed by any damaging effect it might have.’’
    (Internal quotation marks omitted.) Johnson v. Com-
    missioner of Correction, supra, 
    330 Conn. 539
    . More-
    over, ‘‘our habeas corpus jurisprudence reveals several
    scenarios in which courts will not second-guess defense
    counsel’s decision not to investigate or call certain wit-
    nesses or to investigate potential defenses, such as
    when . . . counsel learns the substance of the witness’
    testimony and determines that calling that witness is
    unnecessary or potentially harmful to the case . . . .’’
    (Footnotes omitted.) Gaines v. Commissioner of Cor-
    rection, supra, 681–82.
    On the basis of our review of the criminal and habeas
    trial records, we conclude that there were objectively
    reasonable, strategic reasons Polan might have had for
    her limited investigation and her decisions not to call
    certain habeas witnesses. Regarding Audrey, given that
    the habeas court credited her testimony that Polan sub-
    poenaed her for the petitioner’s criminal trial, it may
    reasonably be inferred that Polan knew the substance
    of Audrey’s anticipated testimony. It may also reason-
    ably be inferred that Polan knew that Audrey was the
    petitioner’s sister. It is not unduly speculative and does
    not constitute impermissible post hoc rationalization
    to entertain the possibility that Polan concluded that
    Audrey’s bias might have undermined her credibility
    enough that the damaging effect of her testimony would
    have outweighed its benefit. Under Cullen, it is our
    obligation to entertain reasonably possible reasons that
    may explain trial counsel’s decisions, and it is not
    unduly speculative and does not constitute impermissi-
    ble post hoc rationalization to entertain the possibility
    that Polan concluded that Audrey’s bias might have
    undermined her credibility enough that the damaging
    effect of her testimony would have outweighed its bene-
    fit. Experienced trial lawyers know that simpler is often
    better and sometimes will decide not to call a witness
    because, in counsel’s estimation, the marginal value to
    be gained from the expected testimony is not worth
    the risk that the jury will become distracted, confused
    or even doubtful about the theory of defense following
    an effective cross-examination of the witness. We can-
    not conclude that such a decision would have been
    objectively unreasonable. Indeed, we have previously
    recognized that counsel’s decision not to call a witness
    based on counsel’s concern about the witness’ potential
    bias as a family member of the habeas petitioner was
    objectively reasonable. See Johnson v. Commissioner
    of Correction, supra, 
    330 Conn. 552
    . We noted that this
    concern ‘‘was justified even if [the witness] was consid-
    ered . . . credible . . . by the habeas court . . . .’’
    
    Id.
     Moreover, given that Polan knew of Audrey, her
    decision not to call her at trial is ‘‘virtually unchallenge-
    able . . . .’’ Strickland v. Washington, 
    supra,
     
    466 U.S. 690
    .
    Regarding Alexis and Jymisha, nothing in the record
    supports an inference that Polan knew the substance
    of their anticipated testimony; rather, given that the
    habeas court credited their testimony that they never
    spoke with Polan or her investigator, it may reasonably
    be inferred that Polan did not contact either of them
    to learn the substance of their anticipated testimony.4
    Accordingly, Polan’s decision not to investigate them
    will be considered objectively reasonable ‘‘to the extent
    that reasonable professional judgments support the lim-
    itations on [Polan’s] investigation.’’ Id., 691. However,
    as with Audrey, it may reasonably be inferred that Polan
    knew that Alexis and Jymisha were close family to the
    petitioner. It would have been reasonable for Polan to
    conclude that, as with the petitioner’s sister, Audrey,
    their bias might have undermined their credibility. We
    cannot conclude that such a decision would have been
    objectively unreasonable. See, e.g., Johnson v. Com-
    missioner of Correction, supra, 
    330 Conn. 552
    . Polan
    also reasonably might have declined to investigate
    Alexis and Jymisha given their young ages—eight and
    eleven years old, respectively, at the time of the shoot-
    ing—which Polan likely would have learned from the
    petitioner or Audrey when they were first brought to
    Polan’s attention.
    We also emphasize, as the Appellate Court noted,
    that Alexis, Jymisha, and Audrey’s testimony did not
    directly support a claim of self-defense. See Jordan v.
    Commissioner of Correction, supra, 
    197 Conn. App. 853
    . Their testimony tended to demonstrate only that
    a gun had been lying on the ground near the victim’s
    body after he was shot, suggesting that it was the vic-
    tim’s gun and that he may have had it when he was
    shot. 
    Id.
     Williams, the state’s key eyewitness from the
    criminal trial, testified before the jury that the victim
    had drawn a gun prior to being shot. Thus, Polan reason-
    ably could have concluded that Alexis, Jymisha, and
    Audrey’s testimony was cumulative of, and not as com-
    pelling as, Williams’ testimony. Consequently, we can-
    not conclude that any limitation on Polan’s investigation
    of these witnesses would have been objectively unrea-
    sonable.
    Turning to Polan’s failure to call Jones at the criminal
    trial, we note that Jones’ written statement to Polan’s
    private investigator, as well as her credible testimony
    that Polan subpoenaed her for the petitioner’s criminal
    trial, strongly supports the inference that Polan knew
    the substance of Jones’ anticipated testimony. See 
    id., 855
    . The criminal trial record reveals an objectively
    reasonable reason Polan might have had to decline to
    call Jones: Although Jones’ testimony would have sup-
    ported the petitioner’s self-defense claim, it also would
    have undermined Polan’s efforts to inject reasonable
    doubt into the state’s case regarding the petitioner’s
    intent. Specifically, Jones’ statement recited the peti-
    tioner’s words to the victim, as the petitioner was leav-
    ing the first confrontation, ‘‘[y]ou going to confront me
    with a gun.’’ Jones and the state’s key eyewitness from
    the criminal trial, Williams, consistently described how
    the petitioner returned a few minutes after the end
    of the first confrontation, at which point the second
    confrontation and eventual shooting occurred. In addi-
    tion, the criminal trial record contains testimony from
    the petitioner that he did not have possession of his
    gun at all times and that he sometimes left it in his car.
    Together, this evidence would have strongly sup-
    ported the state’s argument that the petitioner pos-
    sessed the requisite intent for murder because he left
    the first confrontation in order to acquire his gun and
    to resume his argument with the victim while armed.
    Without Jones’ statement that the petitioner said, ‘‘[y]ou
    going to confront me with a gun’’ as he was leaving the
    first confrontation, the state’s argument lacked direct
    evidence that the petitioner possessed the requisite
    intent for murder. In other words, the criminal trial
    record strongly supports the possibility that Polan
    decided not to call Jones so that she would have a
    stronger basis from which to attack the sufficiency of
    the state’s evidence regarding the requisite intent to
    commit murder, even though such a decision might
    have weakened the petitioner’s self-defense claim.5 The
    jury ultimately found the petitioner not guilty of murder
    but guilty of the lesser included offense of manslaughter
    in the first degree with a firearm. Thus, it is reasonable
    to conclude that Polan’s decisions, including her deci-
    sion not to call Jones, contributed to the jury’s decision
    to find the petitioner not guilty of the more serious
    charge. See, e.g., Harrington v. Richter, 
    supra,
     
    562 U.S. 111
     (‘‘while in some instances even an isolated error
    can support an [ineffective assistance] claim if it is
    sufficiently egregious and prejudicial . . . it is difficult
    to establish ineffective assistance when counsel’s over-
    all performance indicates active and capable advocacy’’
    (citation omitted; internal quotation marks omitted)).
    As the Appellate Court noted, ‘‘[i]t is hard to label
    Polan’s efforts on behalf of the petitioner as ineffective
    advocacy when those efforts resulted in a significant
    reduction in the petitioner’s potential sentencing expo-
    sure through his acquittal on the murder charge. If the
    petitioner had been convicted of murder, he faced a
    sentence ranging from the mandatory minimum of
    twenty-five years to a maximum of life in prison. See
    General Statutes § 53a-35a (2). Instead, his manslaugh-
    ter with a firearm conviction carried a lesser penalty,
    a five year mandatory minimum with a maximum sen-
    tence of forty years of incarceration. General Statutes
    § 53a-35a (5).’’ Jordan v. Commissioner of Correction,
    supra, 
    197 Conn. App. 865
    .
    We cannot conclude that the decision not to call
    Jones was objectively unreasonable. Given the strong
    support in the criminal trial record, this was a strategic
    decision made by Polan that, ‘‘although not entirely
    immune from review,’’ is ‘‘entitled to substantial defer-
    ence by the court.’’ Skakel v. Commissioner of Correc-
    tion, supra, 
    329 Conn. 31
    . This is precisely a circum-
    stance in which the court should not ‘‘second-guess
    defense counsel’s decision not to . . . call certain wit-
    nesses’’ because counsel ‘‘[learned] the substance of
    the witness’ testimony and determin[ed] that calling
    that witness [was] unnecessary or potentially harmful
    to the case . . . .’’ (Footnotes omitted.) Gaines v. Com-
    missioner of Correction, supra, 
    306 Conn. 681
    –82. As
    with Polan’s decision not to call Audrey, this was a
    ‘‘strategic [choice] made after thorough investigation
    . . . [that is] virtually unchallengeable . . . .’’ Strick-
    land v. Washington, 
    supra,
     
    466 U.S. 690
    . Moreover,
    counsel’s decision regarding which defense theory to
    emphasize—attacking the sufficiency of the evidence
    supporting the state’s case or buttressing a statutory
    defense—is a quintessential decision of trial strategy
    and professional judgment that Strickland considers to
    be objectively reasonable. ‘‘There are countless ways
    to provide effective assistance in any given case. Even
    the best criminal defense attorneys would not defend
    a particular client in the same way.’’ Id., 689. Accord-
    ingly, we conclude that Polan’s decision not to call
    Jones did not constitute constitutionally deficient per-
    formance.
    Regarding Walker and Wright, nothing in the record
    supports an inference that Polan knew the substance
    of their anticipated testimony. Given that the habeas
    court credited their testimony, it may reasonably be
    inferred that Polan did not contact either of them to
    learn the substance of their anticipated testimony.
    Accordingly, Polan’s decision not to investigate them
    will be considered objectively reasonable ‘‘to the extent
    that reasonable professional judgments support the lim-
    itations on [Polan’s] investigation.’’ Strickland v. Wash-
    ington, supra, 
    466 U.S. 691
    . Moreover, and unlike with
    the previous four witnesses, nothing in the record
    points to any particular reasons that appear to have
    supported Polan’s decisions not to investigate them.6
    However, we need not speculate why Polan might not
    have investigated Walker and Wright or determine
    whether such decision could be objectively reasonable
    despite the lack of support in the criminal trial record.
    Irrespective of the performance prong, we conclude
    that the petitioner cannot satisfy the prejudice prong
    of the Strickland test with respect to these witnesses.
    ‘‘Although a petitioner can succeed only if he satisfies
    both prongs [of the Strickland test], a reviewing court
    can find against a petitioner on either ground.’’ (Internal
    quotation marks omitted.) Johnson v. Commissioner
    of Correction, supra, 
    330 Conn. 538
    . Considering the
    totality of the evidence before the jury, we cannot con-
    clude that there is a reasonable probability that the
    result of the petitioner’s criminal trial would have been
    different if Polan had called Walker or Wright to testify.
    See, e.g., Ledbetter v. Commissioner of Correction,
    supra, 
    275 Conn. 458
    . Regarding Walker, who was a
    close friend of the victim, we begin by noting that his
    testimony that the victim had a gun was duplicative of
    the testimony of the state’s key eyewitness, Williams.
    In fact, Polan reasonably could have determined that
    Walker’s testimony that the victim never actually drew
    his gun would have been less compelling for purposes
    of the petitioner’s self-defense claim than Williams’ tes-
    timony, given that Williams claimed that the victim actu-
    ally drew his gun. Jordan v. Commissioner of Correc-
    tion, supra, 
    197 Conn. App. 857
    –58; see also Meletrich
    v. Commissioner of Correction, 
    332 Conn. 615
    , 628,
    
    212 A.3d 678
     (2019). Additionally, although Walker’s
    testimony would have supplied credible evidence by
    a hostile witness that the victim had a gun and was
    exhibiting threatening behavior toward the petitioner,
    his testimony also contained a crucial fact that would
    have undercut its persuasive effect. Specifically, Walk-
    er’s testimony that he saw the victim ‘‘ ‘flashing’ ’’ his
    gun; (emphasis added) Jordan v. Commissioner of Cor-
    rection, supra, 857; would have contradicted the peti-
    tioner’s criminal trial testimony that he did not see the
    victim’s gun and did not know whether the victim actu-
    ally had a gun. See id., 843. This testimony concerned
    the critical factual dispute of whether the petitioner
    reasonably believed that the victim was about to fire
    his gun at him, which was central to his self-defense
    claim. Because the petitioner’s testimony and Walker’s
    testimony on this critical fact were inconsistent, how-
    ever, we cannot conclude that there is a reasonable
    probability that Walker’s testimony would have altered
    the outcome of the criminal trial. Rather, there was
    a real possibility that the jury would have found the
    petitioner, Walker, or both less credible because of the
    discrepancy concerning this central issue.
    Regarding Wright, his testimony would have sup-
    ported the petitioner’s self-defense claim only to the
    extent that the jury credited his testimony that the vic-
    tim had a gun at the scene. However, this was consistent
    with testimony by the state’s key eyewitness, Williams,
    that the victim drew his gun before the petitioner drew
    his. Id., 841. Given that Wright testified that he observed
    the shooting from such a distance, his testimony con-
    tained little additional evidence that would have sup-
    ported the petitioner’s self-defense claim. He did not
    see any of the other witnesses around the victim, and
    he could not even identify the petitioner as the person
    with whom the victim was conversing. Moreover, at
    the criminal trial, Williams had identified Wright as the
    person who fired the initial gunshot. Id. Because of
    Williams’ testimony at the criminal trial, coupled with
    Wright’s habeas testimony regarding his distant obser-
    vation of the shooting and his weak recall of the other
    individuals present, we cannot conclude that there is
    a reasonable probability that Wright’s testimony would
    have altered the outcome of the criminal trial. In sum,
    to the extent that Polan performed deficiently by failing
    to call Walker or Wright, the effect of such failure is best
    characterized as ‘‘isolated’’; Strickland v. Washington,
    
    supra,
     
    466 U.S. 696
    ; it did not have ‘‘a pervasive effect
    on the inferences to be drawn from the evidence’’; 
    id.,
    695–96; or ‘‘[alter] the entire evidentiary picture . . . .’’
    Id., 696. Our confidence in the outcome is not under-
    mined by Walker’s or Wright’s habeas testimony.
    In sum, we conclude that Polan’s failure to investigate
    Alexis and Jymisha was objectively reasonable. We like-
    wise conclude that Polan’s decisions not to call Audrey
    and Jones were objectively reasonable. We also con-
    clude that, irrespective of Polan’s performance, her fail-
    ure to investigate or call Walker or Wright did not preju-
    dice the petitioner. Consequently, the petitioner has not
    satisfied the Strickland test with respect to Polan’s
    representation in connection with his self-defense
    claim.
    III
    We next consider the petitioner’s claim of ineffective
    assistance with respect to Polan’s failure to raise a third-
    party culpability defense. Specifically, the petitioner
    contends that Polan’s performance was constitutionally
    deficient because, as a result of her inadequate investi-
    gation and decisions not to call Jones and Walker, Polan
    unreasonably failed to raise a third-party culpability
    defense. The petitioner asserts that Jones’ and Walker’s
    testimony that Kelly fired his gun, combined with the
    testimony by the medical examiner regarding the left-
    ward and upward path of the victim’s bullet wound,
    supports a strong inference that the fatal gunshot was
    fired by Kelly, not the petitioner. The respondent dis-
    agrees, contending that Polan reasonably decided that
    it was ‘‘better to try to cast pervasive suspicion of doubt
    than to strive to prove a certainty that exonerates.’’
    Harrington v. Richter, 
    supra,
     
    562 U.S. 109
    . We agree
    with the respondent.
    We first review the standards governing the third-
    party culpability defense. ‘‘It is well established that a
    defendant has a right to introduce evidence that indi-
    cates that someone other than the defendant committed
    the crime with which the defendant has been charged.
    . . . The defendant must, however, present evidence
    that directly connects a third party to the crime. . . .
    It is not enough to show that another had the motive
    to commit the crime . . . nor is it enough to raise a
    bare suspicion that some other person may have com-
    mitted the crime of which the defendant is accused.’’
    (Internal quotation marks omitted.) Bryant v. Commis-
    sioner of Correction, 
    290 Conn. 502
    , 514, 
    964 A.2d 1186
    ,
    cert. denied sub nom. Murphy v. Bryant, 
    558 U.S. 938
    ,
    
    130 S. Ct. 259
    , 
    175 L. Ed. 2d 242
     (2009). ‘‘It is not ineffec-
    tive assistance of counsel . . . to decline to pursue a
    [third-party] culpability defense when there is insuffi-
    cient evidence to support that defense.’’ Id., 515.
    Polan did not request, and the criminal trial court did
    not provide, a third-party culpability jury instruction.
    Jordan v. Commissioner of Correction, supra, 
    197 Conn. App. 869
    . The criminal trial record, however,
    demonstrates that one of Polan’s defense strategies was
    to highlight the reasonable doubt in the state’s case by
    explaining to the jury, particularly on the basis of the
    forensic evidence presented by the medical examiner,
    that the bullet that killed the victim could not have been
    fired by the petitioner. 
    Id.
     It is not unduly speculative
    to conclude that Polan might have determined that this
    was the better approach to a theory of third-party culpa-
    bility because it would not have involved the more
    rigorous requirements a jury instruction on the defense
    would have imposed. See Harrington v. Richter, 
    supra,
    562 U.S. 109
    ; see also Bryant v. Commissioner of Cor-
    rection, supra, 
    290 Conn. 514
     (defendant must directly
    connect third party to crime). Polan reasonably may
    have believed that the third-party culpability defense
    was weaker than the petitioner’s self-defense claim
    because the state had strong evidence to counter a
    third-party culpability narrative. For example, all the
    witnesses testified that the victim did not fall to the
    ground until after the petitioner fired his gun, suggesting
    it was his shot, and not the first shot fired, that struck
    and killed the victim.7 Thus, although not abandoning
    it completely, Polan chose not to make it more of a
    focus of her closing argument and risk confusing or
    alienating the jury. Moreover, third-party culpability
    was only one of several defense strategies Polan pur-
    sued. As we emphasized with respect to the petitioner’s
    self-defense claim, Polan’s decisions regarding which
    defense strategies to emphasize throughout the trial
    involved the exercise of her professional judgment and
    were not objectively unreasonable. See Strickland v.
    Washington, 
    supra,
     
    466 U.S. 689
    .
    The petitioner nevertheless contends that this case
    is factually analogous to Bryant v. Commissioner of
    Correction, supra, 
    290 Conn. 502
    , in which we held
    that counsel’s ‘‘decision not to present the [third-party]
    culpability defense fell below an objective standard of
    reasonableness, and, therefore, constituted deficient
    performance under the principles enunciated in Strick-
    land.’’ 
    Id., 520
    . The petitioner asserts that, as in Bryant,
    the credible and highly persuasive testimony of two of
    the habeas witnesses—one of whom was neutral, the
    other of whom was hostile—supported a third-party
    culpability defense. See 
    id., 517
    . The petitioner further
    asserts that, as in Bryant, this testimony was ‘‘exceed-
    ingly important’’ because both cases involved ‘‘a credi-
    bility contest . . . .’’ (Internal quotation marks omit-
    ted.) 
    Id., 518
    .
    Bryant is distinguishable, however, because we
    noted in that case that the explanations offered by coun-
    sel for his decision not to call the third-party culpability
    witnesses were objectively unreasonable based on the
    governing law and the criminal trial record. 
    Id.,
     521–22
    and n.15. As divined from the criminal trial record in
    the present case, the strategic reason for Polan’s deci-
    sion not to pursue an express third-party culpability
    defense is much stronger than the reasons proffered
    by counsel in Bryant. In addition, the arguments raised
    by the petitioner regarding Bryant and third-party cul-
    pability emphasize the crucial nature of Jones’ and
    Walker’s testimony and the prejudicial effect of Polan’s
    decision not to call them or to raise an express third-
    party culpability defense. Although these arguments
    inform the prejudice prong of the Strickland test, they
    do not address the performance prong or our conclu-
    sion that the criminal trial record supports Polan’s rea-
    sonable decisions regarding which defense strategies to
    pursue throughout the trial. Accordingly, the petitioner
    has not satisfied the Strickland test with respect to
    Polan’s representation in connection with his third-
    party culpability claim.
    The judgment of the Appellate Court is affirmed.
    In this opinion the other justices concurred.
    * November 5, 2021, the date that this decision was released as a slip
    opinion, is the operative date for all substantive and procedural purposes.
    1
    In addition, the petitioner was charged with carrying a pistol or revolver
    without a permit in violation of General Statutes § 29-35. State v. Jordan,
    
    supra,
     
    117 Conn. App. 162
    . The jury found the petitioner guilty of this crime,
    and the trial court sentenced the petitioner to the maximum permitted
    sentence of five years of imprisonment, to run consecutively to the sentence
    imposed for the first degree manslaughter conviction. Jordan v. Commis-
    sioner of Correction, supra, 
    197 Conn. App. 824
     n.1.
    2
    The petitioner contends that the Appellate Court applied an incorrect
    standard by requiring him to negate all ‘‘plausible’’ reasons for Polan’s
    actions, rather than the ‘‘possible’’ reasons for her actions. (Emphasis
    altered; internal quotation marks omitted.) Specifically, the petitioner asserts
    that possibility designates a quantitative assessment falling between proba-
    bility and impossibility, whereas plausibility is a qualitative assessment of
    superficiality. We note, however, that the Appellate Court used those terms
    interchangeably throughout its opinion. See Jordan v. Commissioner of
    Correction, supra, 
    197 Conn. App. 856
     (‘‘[t]here are a number of plausible
    reasons’’ for Polan’s actions); 
    id., 869
     (‘‘there are a number of possible
    reasons’’ for Polan’s actions). In addition, the United States Supreme Court
    also has used those terms interchangeably throughout its ineffective assis-
    tance jurisprudence. See, e.g., Cullen v. Pinholster, 
    supra,
     
    563 U.S. 196
    (court must ‘‘affirmatively entertain the range of possible reasons’’ for coun-
    sel’s actions (internal quotation marks omitted)); Strickland v. Washington,
    
    supra,
     
    466 U.S. 690
     (actions taken ‘‘after thorough investigation of law and
    facts relevant to plausible options’’ are objectively reasonable). For purposes
    of our disposition of this case, we eschew use of the term ‘‘plausibility’’ in
    favor of the term ‘‘possibility.’’
    3
    In concluding that the petitioner failed to satisfy the prejudice prong of
    the Strickland test with regard to the habeas witnesses’ testimony that the
    victim had a gun, the Appellate Court emphasized that this evidence ‘‘would
    only be marginally relevant to the petitioner’s self-defense claim because it
    was the reasonableness of the petitioner’s subjective perception of the
    situation, as he saw it, not the perception of the other witnesses, that was
    relevant to the issue of self-defense. In other words, Polan did not need to
    demonstrate that the victim in fact had a gun, only that the petitioner
    reasonably believed [that he was] armed.’’ (Emphasis omitted; internal quota-
    tion marks omitted.) Jordan v. Commissioner of Correction, supra, 
    197 Conn. 865
    . However, as the petitioner persuasively contends, the witnesses’
    testimony that the victim actually had a gun would have corroborated his
    belief that the victim had a gun, which would have been relevant to the
    reasonableness element of his self-defense claim. See, e.g., State v. Saunders,
    supra, 
    267 Conn. 373
    –74.
    4
    The Appellate Court speculated that Polan knew the substance of Alexis’
    and Jymisha’s anticipated testimony because Audrey ‘‘may have told Polan
    and O’Donnell . . . what they may have observed.’’ Jordan v. Commis-
    sioner of Correction, supra, 
    197 Conn. App. 852
    . However, Audrey’s habeas
    testimony did not indicate that she communicated such information to Polan
    or to her private investigator. We need not so speculate because the record
    supports our conclusion that Polan might have declined to learn the sub-
    stance of Alexis’ and Jymisha’s testimony because of their young ages and
    family relation to the petitioner.
    5
    The Appellate Court listed other ‘‘plausible’’ reasons why Polan might
    have decided not to call Jones that find no support in the criminal trial
    record. Specifically, the court reasoned that Jones ‘‘had a criminal record,’’
    although the habeas record contains no further details, and that Jones was
    a friend of the petitioner, which ignores her testimony that she was also a
    friend of the victim and that she was therefore a neutral witness. Jordan
    v. Commissioner of Correction, supra, 
    197 Conn. App. 856
    . As the petitioner
    notes, the court provided no basis in the criminal trial record for its inference
    that these were among the possible reasons Polan might have had. Given
    that there is an objectively reasonable, strategic basis for Polan’s decision
    not to call Jones that finds substantial support in the criminal trial record,
    we need not speculate further.
    6
    The Appellate Court speculated that Polan both knew the substance of
    Walker’s testimony and determined that ‘‘she would have a better chance
    of persuading the jury by relying on the state’s witnesses’’ because of factual
    inconsistencies between Walker’s testimony and Williams’ testimony. Jor-
    dan v. Commissioner of Correction, supra, 
    197 Conn. 858
    . This reasoning,
    however, appears to contradict Polan’s emphasis of the factual inconsisten-
    cies in the testimony of the various eyewitness as part of her strategy to
    highlight the reasonable doubt in the state’s case. See 
    id., 845
     (‘‘Polan,
    attempting to capitalize on the inconsistent factual testimony of the state’s
    own witnesses, began her closing argument by attempting to persuade the
    jury that there was reasonable doubt about what had occurred’’); see also
    Harrington v. Richter, 
    supra,
     
    562 U.S. 109
     (court should not ‘‘indulge post
    hoc rationalization for counsel’s [decision-making] that contradicts the
    available evidence of counsel’s actions’’ (emphasis added; internal quotation
    marks omitted)). Given that the petitioner’s claim with respect to Walker’s
    testimony fails on the prejudice prong of the Strickland test, we decline to
    speculate outside the record regarding why Polan did not investigate or
    call Walker.
    7
    Additionally, as the Appellate Court explained, Stevenson, Williams and
    the petitioner himself testified at the criminal trial that the victim had begun
    to turn away from the petitioner at the time the petitioner fired his gun,
    which could have explained away the forensic evidence that was central to
    the success of any third-party culpability claim. See Jordan v. Commissioner
    of Correction, supra, 
    197 Conn. App. 870
    . This further supports the conclu-
    sion that Polan reasonably may have determined that it would not have been
    the strongest defense strategy to request a third-party culpability instruction.