Commonwealth v. Wood , 469 Mass. 266 ( 2014 )


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    SJC-10977
    COMMONWEALTH   vs.   WILLIAM WOOD.
    Suffolk.     March 7, 2014. - August 7, 2014.
    Present:    Ireland, C.J., Cordy, Botsford, Gants, & Lenk, JJ.1
    Homicide. Felony-Murder Rule. Robbery. Evidence, Third-party
    culprit, Relevancy and materiality, Hearsay, Prior
    misconduct, Joint venturer, Expert opinion, Testimony
    before grand jury. Jury and Jurors. Constitutional Law,
    Confrontation of witnesses. Witness, Expert. Perjury.
    Grand Jury. Practice, Criminal, Capital case, Hearsay,
    Jury and jurors, Confrontation of witnesses, Argument by
    prosecutor, Grand jury proceedings, Conduct of prosecutor,
    Verdict, Question by jury, Duplicative convictions. Joint
    Enterprise.
    Indictments found and returned in the Superior Court
    Department on May 4, 2004.
    The cases were tried before Patrick F. Brady, J.
    Stephen Neyman for the defendant.
    Cailin M. Campbell, Assistant District Attorney (Patrick
    Haggan, Assistant District Attorney, with him) for the
    Commonwealth.
    1
    Chief Justice Ireland participated in the deliberation on
    this case prior to his retirement.
    2
    CORDY, J.    In the early morning hours of February 13, 2004,
    Betsy Tripp was bound with telephone wire and murdered in her
    home, a condominium on Monsignor Way in the Dorchester section
    of Boston.   Her throat was slit.   The man who shared the
    condominium with her, Morris Thompson, was shot in the face,
    coming close to death, and losing an eye.    The perpetrators fled
    in a vehicle that Thompson had borrowed from a neighbor in the
    condominium complex and for which Thompson had the keys.     The
    vehicle was abandoned in the parking lot of a Dorchester
    elementary school and set ablaze shortly after 2 A.M. that same
    morning.
    Thompson survived his wounds and accused the defendant,
    William Wood, and Wood's friend, Quincy Butler, of committing
    the crimes in the course of a botched kidnapping and robbery
    attempt.   Both were charged with murder and related crimes,2 and
    were tried together.   There were four trials.   Two ended in
    mistrials when the jury were unable to unanimously agree on a
    verdict.   A third resulted in mistrial when the trial judge
    became ill during trial.   At the fourth trial, which is the
    2
    The defendant, William Wood, was charged with murder in
    the first degree, armed carjacking, two counts of kidnapping,
    armed home invasion, two counts of armed robbery, assault and
    battery by means of a dangerous weapon (a handgun), larceny of a
    motor vehicle, and malicious destruction of property over $250.
    Quincy Butler was charged with the same offenses, in addition to
    one count of possession of a firearm.
    3
    subject of this appeal, the defendant was convicted of murder in
    the first degree on theories of felony-murder and extreme
    atrocity or cruelty.3   Butler was convicted of murder in the
    second degree, and his appeal is pending in the Appeals Court.
    As outlined further below, the principal witnesses for the
    Commonwealth were Thompson and Butler's former roommate and girl
    friend at the time of the murder, Laura DaSilva.   DaSilva's
    testimony included her observations regarding the kidnapping at
    gunpoint of Thompson from her apartment by the defendant and
    Butler shortly before the murder; her observations of the
    defendant and Butler when they returned to her apartment at
    approximately 3 A.M. on February 13 and disposed of their
    clothing, including what appeared to be bloody gloves; and
    admissions made to her by Butler later that same morning
    regarding what he and the defendant had done at Tripp's
    condominium.
    Both the defendant and Butler testified at trial,
    essentially denying their involvement in the crimes.   In
    addition to their testimony, the defense focused on the lack of
    forensic evidence tying either of them to the crime scene, what
    3
    The defendant was also convicted of armed carjacking, two
    counts of kidnapping, armed home invasion, two counts of armed
    robbery, and larceny of a motor vehicle. The judge dismissed
    his convictions on both counts of armed robbery as duplicative
    of his conviction of felony-murder in the first degree. The
    defendant was acquitted of assault and battery by means of a
    dangerous weapon on Morris Thompson.
    4
    they claimed was an inadequate police investigation, and,
    relatedly, the possibility that Thompson or one of Thompson's
    drug-related associates had committed the crimes.    The outcome
    of the case, to a large degree, turned on the jury's assessment
    whether the Commonwealth's principal witnesses or the
    codefendants were telling the truth.
    On appeal, the defendant raises numerous claims of error.
    For the reasons stated below, we find no reversible error, and
    discern no basis to exercise our authority under G. L. c. 278,
    § 33E, to reduce or reverse the murder verdict.    Consequently,
    we affirm the defendant's convictions.   We also reinstate the
    defendant's two convictions of armed robbery, the underlying
    felonies in the felony-murder conviction, which the judge
    dismissed as duplicative.   As we have concluded in similar
    circumstances, those convictions are not duplicative where the
    defendant is also convicted on another theory of murder in the
    first degree, here murder with extreme atrocity or cruelty.
    Commonwealth v. Gambora, 
    457 Mass. 715
    , 734 (2010) ("if a jury
    return a special verdict specifying felony-murder as one of
    several theories under which they convicted the defendant, the
    underlying felony remains a distinct crime").     Commonwealth v.
    Raymond, 
    424 Mass. 382
    , 396-397 (1997) (same).
    5
    1.   Background.   We summarize the facts as the jury could
    have found them, in the light most favorable to the
    Commonwealth.   Commonwealth v. Sanna, 
    424 Mass. 92
    , 93 (1997).
    a.   The murder.   Thompson and Tripp began dating eight
    years prior to her death in 2004, and moved into a condominium
    in Dorchester together in 2001 or 2002.    Thompson received
    disability checks every month and also worked odd jobs, often as
    a doorman at various Boston nightclubs or as a construction
    worker.
    In February, 2004, Thompson's neighbor, Mitra Ghobadi,
    asked him to refurbish her apartment.    He determined that he
    needed help to finish the job on time.    DaSilva had lived with
    Thompson and Tripp for some time to escape an abusive former boy
    friend, and Thompson decided to enlist the help of her new boy
    friend, Butler.    Thompson testified that he knew Butler as "Q."4
    DaSilva testified that on the evening of February 12,
    Thompson drove to her house in Boston with an "eight ball" of
    "crack" cocaine.    He smoked the crack cocaine with DaSilva,
    Butler, and two other residents of the apartment in DaSilva's
    bedroom.5,6   Thompson told Butler that he would pay him $200 at
    4
    Butler testified that he had met Morris Thompson numerous
    times at Laura DaSilva's apartment.
    5
    Thompson repeatedly denied being a drug user and testified
    that he did not smoke "crack" cocaine that night.
    6
    the end of the following day for his assistance refurbishing
    Ghobadi's apartment.   Butler responded that he had a friend who
    could help them get through the work more quickly.   Thompson
    agreed, and said that Butler and his friend could split the
    $200.
    At some point, the defendant entered the bedroom.    Butler
    told DaSilva to follow him to the bathroom to talk with him.
    Once there, Butler said "that he was taking [Thompson] out and
    [Thompson] wasn't coming back to the house."
    Thompson became uneasy at the sight of the defendant, and
    something "just didn't feel right."   At that point, Butler said,
    "We're gonna get paid tonight," pulled out a silver revolver
    with a black handle,7 and put the gun to Thompson's head, while
    the defendant went through Thompson's pockets.    The defendant
    took Thompson's automobile keys, money, and wallet, while
    DaSilva sat and watched from the bed, silently.
    After taking Thompson's money, Butler and the defendant
    took Thompson to his automobile.8   The defendant drove while
    6
    The two other residents retired to their bedroom after
    smoking and did not witness or take part in the armed robbery or
    its aftermath.
    7
    Laura DaSilva testified that she had seen the defendant
    give the gun to Butler months earlier.
    8
    On the night of the murder, Morris Thompson drove Mitra
    Ghobadi's automobile, which she had lent to him after the
    automobile he shared with Betsy Tripp was damaged. As the
    7
    Thompson sat in the passenger seat and Butler sat behind him
    holding the gun to Thompson's head.     The group arrived at
    Thompson's and Tripp's condominium building sometime after
    midnight.    After asking if the building had any security
    cameras, the defendant and Butler walked Thompson to the front
    door of the building and used his keys to open it.     When they
    then entered the condominium unit, Tripp was sleeping in the
    bedroom.
    The defendant and Butler ripped a telephone cord from the
    wall and tied Thompson up with his hands behind his back in the
    living room.    They also woke Tripp and tied her in a similar
    manner.     They demanded money, and the defendant rummaged through
    the house while Butler sat holding Thompson at gunpoint.
    Eventually they demanded Tripp's automated teller machine (ATM)
    card and its personal identification number (PIN),9 which she
    gave to the defendant.    The defendant left the house to use the
    ATM, while Butler stayed, "beating [Thompson] around on the
    floor."
    distinction is not relevant, we refer to the vehicle as
    Thompson's for the sake of brevity.
    9
    The defendant testified that he had previously met
    Thompson through DaSilva and occasionally sold him crack
    cocaine. He also testified that he had Tripp's automated teller
    machine card because Thompson had traded it to him in exchange
    for crack cocaine on February 12, 2004, several hours before the
    murder.
    8
    The defendant went to an ATM in Codman Square, which was
    located a few minutes from Thompson's and Tripp's building.
    Between 1:49 and 1:50 A.M., he tried to withdraw money from the
    ATM five times, before successfully obtaining forty dollars.
    One minute later, he went to another ATM in the area and
    unsuccessfully tried to withdraw more money.    He then returned
    to the condominium.
    On his return, the defendant told Butler that he did not
    get any money.   Tripp explained that her account was empty
    because a check she had received had not cleared yet.    At that
    point, the defendant went into the kitchen, returned with a
    knife, grabbed Tripp by the back of the head, and cut her
    throat.
    On hearing Tripp scream, Thompson jumped up and tried to
    push the defendant out of the way.   As Thompson jumped toward
    the defendant, Butler fired one shot and hit Thompson in the
    side of the head.10   The bullet exited near his left eye.
    Thompson immediately lost consciousness and fell to the floor.
    When he awoke, Tripp was lying beside him, bleeding and barely
    alive.    He broke out of his restraints and went into the hallway
    looking for help from his neighbors.
    10
    Butler fired a second shot, which hit Tripp in the arm,
    after Thompson lost consciousness.
    9
    On answering a knock at his door, Richard Young, Thompson's
    neighbor, found Thompson bleeding profusely with his left eye
    hanging out of its socket.     Thompson testified that he told
    Young, "A guy named 'Q' shot me in the head, and Will cut my
    girlfriend's throat."11    Young told his wife to telephone 911,
    and he telephoned the fire department.     Within minutes, the
    police and emergency medical technicians (EMTs) arrived.
    Thompson repeatedly told the police and medical personnel on the
    scene that "'Q' shot him."     At some point, Young also heard
    Thompson say, "My girlfriend is in the apartment."
    The police found Tripp lying on the floor.     She was covered
    with clothes, and she had a "deep," significant slash across her
    neck.     She was still alive and struggling to breathe as EMTs
    attended to her, but she was pronounced dead on arriving at
    Boston Medical Center.
    After the shooting, the defendant and Butler took
    Thompson's automobile to the nearby Fifield Elementary School
    and set it on fire.     At approximately 3 A.M., they returned to
    DaSilva's house.     The two went into DaSilva's bedroom, took off
    their clothes, and placed them in a plastic bag.     DaSilva
    noticed a pair of black leather gloves that appeared to be
    stained with blood, prompting her nervously to ask them if it
    11
    Thompson admitted that he was not sure if Richard Young
    understood him, and in fact Young testified only that Thompson
    said, "I've been shot."
    10
    was blood.    Neither responded, and instead Butler counted some
    money and gave it to the defendant, who said that after the
    stress he had just been through he wanted to get high, to which
    Butler responded, "No, not right now, nobody's getting high
    right now."
    After the defendant left DaSilva's house, she went to take
    a shower.    Butler followed her into the bathroom and told her
    that he (rather than the defendant) had slit Tripp's throat,
    saying, "She didn't have to die like that."12    Butler told her
    that he and the defendant had tied Thompson and Tripp with
    telephone wire before taking Tripp's ATM card.    Butler added
    that the defendant went to get money from the ATM, and that the
    defendant told Tripp that, if he did not get any money, he was
    going to slit her throat.    Butler also stated that Thompson
    started to free himself while he (Butler) was cutting Tripp's
    throat, and the defendant responded by shooting Thompson.
    12
    DaSilva consistently testified at trial that Butler told
    her that he, rather than the defendant, killed Tripp, and that
    the defendant shot Thompson. What Butler told DaSilva may have
    been part of his effort to frighten her into silence. Thompson
    testified consistently at trial that he observed the defendant
    kill Tripp, and that Butler shot him. Based on the jury verdict
    (the defendant guilty of murder in the first degree on theories
    of felony-murder and extreme atrocity or cruelty, and Butler
    guilty of murder in the second degree), it seems likely that the
    jury believed Thompson's testimony and discounted Butler's
    overstating of his role in the murder of Tripp and the shooting
    of Thompson in his recounting of the details to DaSilva.
    11
    Finally, he said that the two left under the assumption that
    both Thompson and Tripp were dead.
    b.   The investigation.   The police investigation got
    underway immediately after the murder.    Extensive fingerprint
    and deoxyribonucleic acid (DNA) testing on the clothing, knives,
    and other surfaces found in the condominium was conducted, but
    did not conclusively link either the defendant or Butler to the
    crime scene.
    On February 20, 2004, Boston police detectives asked Butler
    and DaSilva to come to police headquarters and make statements.
    DaSilva was afraid Butler would harm her children if she
    implicated him in the murder.13   As a result, DaSilva lied to the
    police and told them that Butler had been with her at the time
    Tripp was killed.   Later, Butler encouraged her to keep her
    false story consistent.
    On February 23, Thompson gave a statement to Boston police
    detectives in which he repeated that Butler had shot him and
    that the defendant had slit Tripp's throat.   The detectives
    intended to conduct a photographic array, when one of them
    13
    DaSilva testified that Butler took her to a hotel one or
    two days after the murder and told her that he might have to
    kill the defendant because Thompson had survived. He also told
    her that she was to tell the police that he, Butler, stayed with
    her the whole night of the murder and did not go anywhere. When
    DaSilva suggested she might kill herself, Butler told her that
    if she died he would kill her three children. This conversation
    made her very frightened for the safety of her children.
    12
    knocked over his bag, causing a piece of paper showing six
    photographs to fall out.       Thompson saw the paper, recognized the
    defendant's picture, and said, "That's the guy that had cut
    Betsy's throat."     He later identified Butler as the shooter in
    another photographic array.
    On February 26, the detectives asked DaSilva to come back
    to the police station for further questioning.       Once at the
    station, DaSilva admitted that she had lied in her first
    statement because of her fear of Butler.        She then gave a
    different account of what she witnessed the night of the murder,
    implicating Butler, although she testified at trial that she had
    still held back certain details, including some of Butler's
    admissions to her.     Butler and the defendant were then arrested
    and subsequently indicted.14      We address other relevant facts as
    they arise below.
    2.     Discussion.   a.   Third-party culprit and Bowden
    evidence.    In a pretrial motion joined by Butler, the defendant
    sought to introduce, through several witnesses and cross
    examination, evidence intended to show that a third party --
    likely Thompson -- killed Tripp, as well as evidence that the
    14
    DaSilva testified that in March, 2004, after Butler and
    the defendant were arrested and in jail, she received a
    telephone call from a third party accompanied by Butler and the
    defendant in a three-way conference call. Butler and the
    defendant asked her what she had told the police, and she denied
    having spoken to them. They then reiterated that she was not to
    talk to the police.
    13
    police failed to investigate certain statements implicating
    Thompson.   We discern no error in the judge's rulings excluding
    much of the proffered evidence.
    The defendant sought to introduce testimony from Natalie
    Shaheen, a friend of Tripp, recalling several statements made to
    her by Tripp, purportedly showing a deteriorating relationship.
    Specifically, it was represented that Shaheen would testify that
    Tripp had told her that Thompson had been abusive toward her for
    years, both threatening and inflicting physical injury; that she
    was frightened of Thompson and the people he brought over to the
    condominium as a consequence of his crack cocaine habit, and did
    not feel safe in her own home; and that Thompson had told Tripp
    many times that he would kill her.    Sheehan would also have
    testified that Tripp had planned to tell Thompson to move out of
    her home, and that Tripp feared that Thompson was "catching on"
    to her plan.   Finally, Sheehan would have testified that Tripp
    stated to her that if she were killed, it would be Thompson who
    killed her.
    The defendant also sought to introduce evidence through his
    cross-examination of Thompson.    In particular, he intended to
    question Thompson regarding his substance abuse history in order
    to impeach his expected testimony that he had only used crack
    cocaine once, and that he did not use it on the night of the
    murder.
    14
    He also intended to question Thompson regarding an incident
    between Thompson and a woman named Laura Buchman, in which
    Buchman stole a camera from Thompson over a drug dispute and
    Thompson allegedly paid several people to beat Buchman up in
    retaliation.   He further intended to call Buchman as a witness
    to describe the camera incident and testify that she and
    Thompson often used crack cocaine together without Tripp's
    knowledge, and that Thompson acted "crazy" when using cocaine.
    The judge excluded all the proffered evidence from Shaheen
    and Buchman as either hearsay or irrelevant, and allowed the
    defendant to inquire as to Thompson's possession and use of
    drugs and his dealings with a drug dealer known as "Tony" or "T"
    only in the days immediately preceding the murder.    With regard
    to Shaheen, the judge determined that her proposed testimony was
    hearsay that did not fall within any exception.   He noted that
    none of the proffered evidence provided a substantial connecting
    link to any third-party culprit.    In particular, he stated,
    "Looking at the whole picture I can't see Thompson as third
    party culprit.   I can't rationally, without an incredible
    imagination, I can't picture him being the culprit.    And as far
    as a third party unknown drug dealer being the culprit, it just
    seems too farfetched and feeble."
    "The standard applicable to admission of third-party
    evidence in Massachusetts is well settled . . . ."    Commonwealth
    15
    v. Buckman, 
    461 Mass. 24
    , 30 (2011), cert. denied, 
    132 S. Ct. 2781
    (2012).   "Third party culprit evidence is 'a time-honored
    method of defending against a criminal charge.'"    Commonwealth
    v. Silva-Santiago, 
    453 Mass. 782
    , 800 (2009), quoting
    Commonwealth v. Rosa, 
    422 Mass. 18
    , 22 (1996).   "A defendant may
    introduce evidence that tends to show that another person
    committed the crime or had the motive, intent, and opportunity
    to commit it."   Commonwealth v. Lawrence, 
    404 Mass. 378
    , 387
    (1989), quoting Commonwealth v. Harris, 
    395 Mass. 296
    , 300
    (1985).
    A judge's discretion to admit third-party culprit evidence
    is not without limits.   The proffered evidence "must have a
    rational tendency to prove the issue the defense raises, and the
    evidence cannot be too remote or speculative."     
    Silva-Santiago, 453 Mass. at 801
    , quoting 
    Rosa, 422 Mass. at 22
    .    See 
    Buckman, 461 Mass. at 32
    .   Further, if the evidence is hearsay not
    falling within any exception, it is admissible only if it is
    "otherwise relevant, will not tend to prejudice or confuse the
    jury, and there are other 'substantial connecting links' to the
    crime."   
    Silva-Santiago, supra
    , quoting Commonwealth v. Rice,
    
    441 Mass. 291
    , 305 (2004).   "Because the issue is one of
    constitutional dimension, we are not bound by an abuse of
    discretion standard, but rather examine the issue
    16
    independently."    Commonwealth v. Conkey, 
    443 Mass. 60
    , 66-67
    (2004), S.C., 
    452 Mass. 1022
    (2008).
    The judge did not err in excluding the proffered third-
    party culprit evidence here.    First, the entirety of Shaheen's
    proffered testimony was inadmissible hearsay, and as such was
    required to have "substantial connecting links" to the crimes.
    See 
    Buckman, 461 Mass. at 32
    ("Third-party culprit evidence is
    offered for the truth of the matter, and as such it must have
    substantial probative value in connecting a third person to the
    crime").   While Shaheen's testimony may have shown that the
    relationship between Thompson and Tripp was strained, any
    inference that Thompson was the culprit is entirely unsupported
    by any evidence.   Thompson's testimony as to the events of the
    evening was largely consistent with DaSilva's testimony, based
    on her observations and Butler's admissions to her.15   It was
    also consistent with what the responding police and EMTs
    observed when they arrived at the scene.    The judge concluded,
    and we agree, that it strains credulity, and is entirely
    speculative, that Thompson slit Tripp's throat, shot himself,
    survived, discarded a firearm, and fabricated a story
    implicating the defendant and Butler while suffering from a
    15
    There is nothing in the record to suggest that Thompson
    and DaSilva ever had any opportunity or incentive to collude in
    constructing consistent versions of the event that evening.
    Indeed, Thompson indicated during his testimony that he believed
    DaSilva had organized the robbery.
    17
    painful and blinding wound that, according to the responding
    officers, appeared to be "fatal."   See Commonwealth v. O'Brien,
    
    432 Mass. 578
    , 588-589 (2000) (conversation between victim and
    friend about victim's fear of brother-in-law insufficient to
    suggest he was third-party culprit who had motive, intent, and
    opportunity to commit crime).
    The same is true of the proffered evidence that Thompson
    was a heavy drug user, had a violent past, and had threatened
    Buchman.   Where the overwhelming weight of the evidence was
    contrary to Thompson being the culprit, and where there was no
    evidence suggesting his complicity in the killing, the judge did
    not err in concluding that evidence of these prior bad acts did
    not support any rational inference linking Thompson to the
    crime.
    Moreover, where a defendant seeks to admit prior bad acts
    of an alleged third-party culprit, he must show that "the acts
    of the other person are so closely connected in point of time
    and method of operation as to cast doubt upon the identification
    of [the] defendant as the person who committed the crime."
    
    Conkey, 443 Mass. at 66
    , quoting Commonwealth v. Hunter, 
    426 Mass. 715
    , 716-717 (1998).   Here, none of the excluded evidence
    was closely connected in time to the murder.   Proffered evidence
    that would show that Thompson was a heavy drug user who
    occasionally acted "crazy" while using cocaine described
    18
    incidents that occurred long before the night of the murder.
    Similarly, his alleged dispute with Buchman and hiring of men to
    harm her after she stole a camera from him was evidence of an
    irrelevant prior bad act.   See Commonwealth v. Pimental, 
    454 Mass. 475
    , 479 (2009) (prior bad act of third-party culprit not
    admissible where it "shared no singular features or striking
    resemblance" with crime).    It also had no tendency to prove that
    anyone other than the defendant committed the crime, given that
    there is no reading of the record that suggests either that
    Buchman killed Tripp or that the incident was in any way related
    to the murder.
    Finally, although the judge limited testimony regarding
    Thompson's prior drug use, he did allow evidence of Thompson's
    use of crack cocaine on the night of the murder and the days
    preceding it.    Defense counsel was permitted to ask whether
    Thompson used crack cocaine the night of the murder, whether
    crack cocaine was found in the pants he was wearing that night,
    and whether he had arranged to hold crack cocaine for a drug
    dealer named "Tony" or "T."    Defense counsel was also permitted
    to elicit testimony from other witnesses to the effect that
    Thompson smoked crack cocaine in the hours preceding the murder
    and that crack pipes were found in his bedroom.    Thus, although
    the judge barred testimony about the full extent of Thompson's
    drug use and his behavior while on drugs, the judge admitted
    19
    (and the jury heard) substantial testimony about Thompson's drug
    use in the days leading up to the murder and his dealings with
    "Tony," rendering the excluded evidence cumulative.     See
    Commonwealth v. Greineder, 
    458 Mass. 207
    , 252 (2010);
    Commonwealth v. Alammani, 
    439 Mass. 605
    , 611-612 (2003).
    The defendant also argues that Shaheen's statements about
    Tripp should have been admitted -- both through her own
    proffered testimony and that of Boston police Detective Russell
    Grant, to whom she relayed the information -- in furtherance of
    a Bowden defense.   See Commonwealth v. Bowden, 
    379 Mass. 472
    ,
    486 (1980).   Pursuant to a Bowden defense, a defendant may
    introduce evidence regarding the police investigation in order
    to create an inference "that the evidence at trial may be
    inadequate or unreliable because the police failed to conduct
    the scientific tests or to pursue leads that a reasonable police
    investigation would have conducted or investigated, and these
    tests or investigation may have led to significant evidence of
    the defendant's guilt or innocence."    
    Silva-Santiago, 453 Mass. at 801
    .   "[T]he failure of the police to investigate leads
    concerning another suspect is sufficient grounds for a Bowden
    defense."   
    Id. at 802.
      See Commonwealth v. Phinney, 
    446 Mass. 155
    , 166 (2006) (police reports admissible to show that police
    were on notice of suspect but failed to investigate possible
    involvement in murder).   "[T]he exclusion of evidence of a
    20
    Bowden defense is not constitutional in nature and therefore is
    examined under an abuse of discretion standard."   Silva-
    Santiago, supra at 804 n.26.   To determine whether a judge
    abused his or her discretion in declining to admit such
    evidence, the judge must determine whether the proffered third-
    party culprit evidence was provided to the police and, if so,
    whether the probative weight of the evidence outweighed the risk
    of unfair prejudice to the Commonwealth from turning the jury's
    attention to "collateral matters."   
    Id. at 803.
    As part of the police investigation, Detective Grant
    interviewed Shaheen on February 22, 2004, during which she
    provided essentially all of the third-party culprit evidence
    that her proffered testimony would have encompassed.   That
    evidence was properly excluded, however, because its probative
    value was negligible.   At best, the evidence would have shown
    that police failed to investigate Thompson as a suspect despite
    being aware of his drug use and his deteriorating relationship
    with Tripp.   However, where there was no evidence suggesting
    that Thompson killed Tripp, or was in any way involved in her
    death, the judge properly concluded that the evidence would have
    been far more prejudicial than probative.
    In any event, the defense was permitted to challenge the
    adequacy of the police investigation as a whole.   Counsel for
    both defendants extensively cross-examined Grant about his
    21
    investigation, emphasizing the fact that Grant was aware that
    Thompson had repeatedly lied to the police, and that Grant had
    done very little to find "T," despite having information
    suggesting that he had allegedly fronted Thompson an eight ball
    of crack cocaine only days before the murder.16   Defense counsel
    also argued in his closing, "The police in this case did not do
    the job that each and every one of you should expect to be
    done," and argued that a further investigation of Thompson's
    drug use might have uncovered a third-party drug dealer or user
    who may have committed the crime.   Thus, where the issue of an
    inadequate investigation was fairly before the jury, the
    defendant suffered no prejudice from the exclusion of the
    proffered evidence.
    b.   Hearsay statements.   The defendant argues that the
    judge erred in allowing DaSilva to testify about the statements
    made by the defendant to Butler, which were later relayed to
    her, and statements made by Butler to her during the days
    following the murder.   Because the testimony in question falls
    within the joint venture exception to the hearsay rule, we
    conclude that there was no error.
    Defense counsel objected to the introduction of statements
    made by Butler to DaSilva, arguing that the Commonwealth had not
    16
    Defense counsel through cross-examination and the calling
    of its own expert extensively challenged the adequacy of the
    forensic investigation conducted by the police.
    22
    as of the time of her testimony shown that Butler and the
    defendant were engaged in a joint venture.   The judge denied the
    motion, and defense counsel requested an instruction as to the
    joint venture exception to the hearsay rule.17   The judge
    instructed the jury, in relevant part:
    "[Y]ou may consider against an individual defendant, in
    this case, specifically, Mr. Wood, who is not alleged to
    have been a party to this conversation, any statements made
    by the other alleged participant in the joint venture, that
    is allegedly Mr. Butler, only if three things have been
    proved to you about that statement, this is the statement
    allegedly made by Quincy Butler. First, that other
    evidence, apart from the statement, shows that there was a
    joint venture between the speaker, that's allegedly Mr.
    Butler, and the defendant, Wood. Second, that the
    statement was made during the joint venture including the
    concealment phase if any. And third, that the statement
    was made in order to further or help along the goal of the
    joint venture including concealing the alleged crime."
    After the limiting instruction, DaSilva testified as to the
    details of Butler's admissions to her on the night of the
    murder.   She testified that Butler told her that the defendant
    took Tripp's ATM card and told Tripp that he would slit her
    throat if he did not get any money from her account.   He went on
    to say that, when the defendant returned without any money,
    Butler slit Tripp's throat, Thompson broke free of the telephone
    cord, and the defendant shot Thompson in the face.   DaSilva went
    17
    The defendant's contention that he accepted the judge's
    offer to instruct the jury reluctantly, in order to mitigate the
    damage, is entirely unsupported by the record. The judge noted
    that, in the prior trials, defense counsel had asked the judge
    not to give an instruction, and asked if that was still his
    position. Defense counsel then asked for the instruction.
    23
    on to testify that, days later, she and Butler went to a hotel,
    where Butler told her that he and the defendant had burned
    Thompson's vehicle in the parking lot of the Fifield Elementary
    School, that Thompson was still alive, and that he "was going to
    have to take [the defendant] out" because the defendant did not
    succeed in killing Thompson.
    "Under the joint venture exception to the hearsay rule,
    '[o]ut-of-court statements by joint criminal venturers are
    admissible against the others if the statements are made during
    the pendency of the criminal enterprise and in furtherance of
    it.'"    Commonwealth v. Hardy, 
    431 Mass. 387
    , 393 (2000), S.C.,
    
    464 Mass. 660
    (2013), quoting Commonwealth v. Clarke, 
    418 Mass. 207
    , 218 (1994).   "The judge need not make a preliminary finding
    that a joint criminal enterprise exists as a precondition to
    admitting the evidence."    Commonwealth v. Colon-Cruz, 
    408 Mass. 533
    , 543 (1990).   Instead, he or she may allow the admission of
    such statements "on the representation of the prosecution that
    the Commonwealth will subsequently introduce sufficient evidence
    to show that the defendant was part of the conspiracy," and
    instruct the jury that they may only consider the statements if
    they find that, at the close of evidence, the Commonwealth has
    proved the existence of a joint venture beyond a reasonable
    doubt.   Commonwealth v. Borans, 
    379 Mass. 117
    , 145 n.26 (1979).
    24
    Here, the judge's instruction to the jury was appropriate,
    accurate, and presumably followed by the jury.     See Commonwealth
    v. Ortiz, 
    463 Mass. 402
    , 416 (2012).    The evidence clearly
    supported a finding by the jury that the defendant and Butler
    engaged in a joint venture to rob and murder Tripp.
    Although the defendant contends that the joint venture had
    ended before Butler's statements were made, the evidence belies
    his argument.    The defendant's argument that the joint venture
    had ended when Butler made his initial statements to DaSilva
    "has no merit in light of undisputed evidence that the
    challenged statements were made only a few hours after the
    crimes."   Commonwealth v. Marrero, 
    436 Mass. 488
    , 494 (2002).
    Immediately before the statements were made, the defendant and
    Butler returned to DaSilva's home and disposed of their clothes
    in what was inferably an attempt to conceal evidence of the
    crimes.    Given that the "interests of the [two] men were still
    closely bound together, tending to ensure the reliability of
    their statements," 
    Colon-Cruz, 408 Mass. at 545
    , the initial
    statements were admissible.
    The same is true of the statements made to DaSilva several
    days later at a hotel.    The jury could have determined that
    Butler was still trying to "avoid detection and detention" at
    the time, given that he expressed concern that Thompson was
    still alive and presumably able to identify him.    Clarke, 
    418 25 Mass. at 219
    , quoting 
    Colon-Cruz, 408 Mass. at 545
    .
    Additionally, the jury could have concluded that Butler was
    attempting to frighten DaSilva and ensure that she did not speak
    to the police, given that she was one of only two people who
    could implicate him in the murder.   See Commonwealth v. Beckett,
    
    373 Mass. 329
    , 340 (1977) (one joint venturer making statement
    to encourage another not to speak to police supports finding
    that statement was made in furtherance of joint venture).
    DaSilva testified that she was in fact frightened by Butler's
    statements, that she delayed speaking honestly to the police due
    to her fear, and that she even considered committing suicide.
    Indeed, even after Butler and the defendant were arrested, they
    telephoned and spoke to DaSilva in an effort to keep her from
    speaking to the police.    See note 
    14, supra
    .   Simply put, the
    jury could have concluded that all of the statements were made
    in an attempt to conceal evidence of the joint venture, and thus
    that they fell well within the established exception to the
    hearsay rule.
    c.   Sleeping juror.    The defendant next argues that the
    trial judge abused his discretion in allowing a ninety year old
    juror, whom other jurors believed had been sleeping, to remain
    on the jury.    Where the judge conducted a thorough voir dire and
    determined that the juror was alert throughout the trial, we
    find no error.   See Commonwealth v. Beneche, 
    458 Mass. 61
    , 78-79
    26
    (2010), quoting Commonwealth v. Brown, 
    364 Mass. 471
    , 476 (1973)
    (judge has discretion in what action to take when confronted
    with issue of sleeping juror, and burden is on defendant to show
    that judge's decision was "arbitrary or unreasonable"; burden
    not met where defense counsel twice opined that juror was
    sleeping and judge disagreed based on observations).    See also
    Commonwealth v. Dancy, 
    75 Mass. App. Ct. 175
    , 179-182 (2009)
    (defendant's burden not met where judge remarked that juror
    "keeps falling asleep" and called for recess to awaken juror).
    d.    Medical examiner's testimony.   The defendant also
    argues that he was denied his right of confrontation under the
    Sixth Amendment to the United States Constitution and art. 12 of
    the Massachusetts Declaration of Rights when the judge permitted
    a substitute medical examiner to testify as to facts contained
    in Tripp's autopsy report during his direct examination.
    Although the defendant is correct, there was no objection,18 and
    we conclude that he suffered no prejudice from the error, and
    thus there was no substantial likelihood of a miscarriage of
    justice.   See Commonwealth v. Emeny, 
    463 Mass. 138
    , 145-146
    (2012).
    18
    The defendant's argument that he objected to the
    testimony of the substitute medical examiner finds no support in
    the record. Counsel did not lodge an objection to the testimony
    as a whole, and only objected once on direct examination, in
    response to the prosecutor's question whether a forensic
    pathologist, armed with the information obtained in this case,
    could possibly determine the handedness of the killer.
    27
    At trial, the Commonwealth presented testimony from Dr.
    Richard Evans, a medical examiner and forensic pathologist for
    the Commonwealth.   Evans testified that he did not perform
    Tripp's autopsy, but that it was instead conducted by Dr.
    Abraham Phillip.    Shortly after completing the autopsy, Phillip
    left the medical examiner's office.    Evans testified extensively
    as to Phillip's determinations and opinions as reflected in the
    autopsy report, including Phillip's observations as to the
    nature of the wound.    Evans added that, on review of all of the
    documentation relative to the case, he determined that the cause
    of death was the incised wound to Tripp's neck.
    As the Commonwealth correctly concedes, Evans should not
    have been permitted to testify as to the facts contained in the
    underlying autopsy report.    See Commonwealth v. Nardi, 
    452 Mass. 379
    , 391-394 (2008) (testimony by substitute medical examiner as
    to facts and findings in original autopsy report is inadmissible
    hearsay).   Nevertheless, there was no prejudice.
    The improperly admitted testimony consisted of a recitation
    of Phillip's observations of Tripp's wounds, facts that were not
    in dispute.   The defendant raised a third-party culprit defense;
    he did not argue that Tripp had not died from a knife wound to
    her throat, but that he had not slit her throat.    In addition,
    the jury heard testimony from police and medical personnel who
    testified as to Tripp's wounds, and her medical records
    28
    detailing the fatal wound were properly admitted, rendering the
    erroneously admitted testimony cumulative.   See Commonwealth v.
    Reavis, 
    465 Mass. 875
    , 884-885 (2013) (erroneously admitted
    testimony from substitute medical examiner created no
    substantial likelihood of miscarriage of justice where
    cumulative of other evidence).   Simply put, the defendant was
    not prejudiced by the improper testimony about the wound that
    caused Tripp's death.
    The defendant further argues that Dr. Evans improperly
    testified as to the time of death and the left- or right-
    handedness of the person who administered the wound.     These
    claims are without merit.   As an initial matter, Evans did not
    testify as to the time of death on direct examination.    On
    cross-examination, defense counsel asked if the time of injury
    listed on the death certificate -- approximately 2 A.M. -- was
    based on any determination Evans had made.   Evans responded that
    he made no actual determination regarding either the time of
    injury or the time of death based on his own observations, but
    instead relied on information he received from police.     He added
    that, while the actual time of death was difficult to determine,
    Tripp likely died within minutes of the injury.19,20   A surrogate
    19
    Because Dr. Abraham Phillip left the medical examiner's
    office before completing the autopsy paperwork and death
    certificate for Tripp, Dr. Richard Evans completed and signed
    both documents based on a review of Phillip's notes and records.
    29
    examiner may "offer an expert opinion on the time that would
    have elapsed between injury and death" based on his or her
    "review of an autopsy report by the medical examiner who
    performed the autopsy."     
    Reavis, 465 Mass. at 883
    .   Thus, where
    Evans did not recite findings by Phillip regarding the time of
    death, but rather testified as to his own independent opinion,
    there was no error.
    Similarly, and contrary to the defendant's assertions,
    Evans did not recite any of Phillip's findings regarding the
    handedness of the killer.    Instead, he testified that, in his
    expert opinion, he could not testify to a reasonable degree of
    medical certainty as to the left- or right-handedness of the
    killer.21   Again, it was proper for Evans to give his medical
    opinion based on "documents upon which experts are accustomed to
    rely, and which are potentially independently admissible through
    appropriate witnesses."     
    Reavis, 465 Mass. at 883
    .
    Even if Evans's testimony regarding the time of death and
    the handedness of the killer had been admitted erroneously, the
    defendant would not have been subject to a substantial
    likelihood of a miscarriage of justice.    The time of death was,
    20
    The death certificate reflects that Tripp was declared
    dead at 2:35 A.M.
    21
    As both the defendant and Butler are left-handed, the
    defendant attempted to show that the killer was necessarily
    right-handed.
    30
    at best, collateral to his theory of defense, namely, that
    another person had committed the crime.   Although the amount of
    time Tripp survived after the wound was relevant in considering
    whether the murder was committed with extreme atrocity or
    cruelty, Commonwealth v. Cunneen, 
    389 Mass. 216
    , 227 (1983), the
    jury heard other evidence that she was alive when medical
    personnel arrived.   Further, Evans's testimony did not harm the
    defendant, as he did not testify that the killer was necessarily
    left-handed.   In fact, counsel for Butler extensively cross-
    examined Evans about the handedness of the killer, and counsel
    for the defendant argued in closing that Evans's testimony
    actually supported the theory that a left-handed person (which
    both the defendant and Butler claimed to be) could not have
    committed the murder.    Thus, where the testimony was ambiguous,
    at worst, and helpful to the defendant, at best, there was no
    prejudice.
    e.   Prosecutor's closing argument.   The defendant next
    argues that the judge committed reversible error in not granting
    a mistrial after the prosecutor argued in closing that Thompson
    said he "loved" Tripp.   While the prosecutor's statement was
    unsupported by the evidence, we conclude that the error does not
    require reversal of the defendant's convictions.
    Prior to closing arguments, counsel for Butler requested
    permission to argue that the evidence supported a fair inference
    31
    that the relationship between Thompson and Tripp had
    deteriorated, and that Tripp planned to leave Thompson, in an
    effort to support his theory that Thompson was responsible for
    her death.    The Commonwealth argued that the defense should be
    precluded from doing so.    The judge denied defense counsel
    permission to make the argument where evidence of the
    deteriorating relationship between Tripp and Thompson had been
    excluded from evidence.
    During his closing argument, the prosecutor stated the
    following:    "The bottom line that you're going to have to ask
    yourself about Morris Thompson is what motive does he have to
    lie?    What motive does he have to continually come in here year
    after year, however many times he's given statements, to subject
    himself to hours of cross examination.      What motive?   Mr.
    Thompson, walking around completely mutilated for the rest of
    his life.    His eye is missing.    He's walking around with one eye
    and the remnants of a bullet in his head.       He watched his
    girlfriend, a woman who he said he loved, brutally murdered
    before his eyes, and they want you to believe that he's just
    protecting the real killers.       Are you kidding?"   (Emphasis
    added.)
    Defense counsel for Butler objected to the prosecutor's
    statement and asked for an immediate curative instruction.         The
    judge took the request under advisement and dismissed the jury
    32
    for the day.    The next day, the judge told the prosecutor, "I
    wasn't too keen about the fact that you explicitly said [that
    Thompson loved Tripp]."     He added, "I think in the overall
    context of me trying to put the quash on that type of effort by
    the defense, it seems a little disingenuous for you to state it
    in the final argument."   He thus agreed to specifically instruct
    the jury to disregard the prosecutor's statement.22
    The judge gave the curative instruction as part of his
    final charge to the jury.    He instructed them as follows:     "Also
    there was some statement that Morris Thompson loved Betsy Tripp.
    Well, maybe he did and maybe he didn't, but there's no evidence
    of it, so you are to disregard, disregard that statement made by
    one of the attorneys in the course of the final argument.       And
    in any event, I stress, arguments are not evidence."    Defense
    counsel for Butler objected to the instruction, arguing, "When
    you said 'maybe he did, maybe he didn't,' I think that dilutes
    the importance of telling the jury, you can't consider that, it
    was improper.   Because I want it stricken from memory as best we
    22
    The judge noted, "I know also in the overall context of
    the case it may be minor . . . but I do think that [defense
    counsel] is correct in that I should tell the jury to disregard
    that. Now it's a matter of degree. [Defense counsel] would
    perhaps prefer the strongest possible corrective, which I don't
    think is necessarily called for. But I do think that the
    defendants are correct in asking me to draw the jurors'
    attention to it and to tell them to disregard it . . . ."
    33
    can."     The judge subsequently denied Butler's counsel's motion
    for a mistrial.
    On review of the entire transcript, we agree that Thompson
    did not expressly testify that he "loved" Tripp.23    We agree with
    the judge's assessment that the statement was made in error, a
    point that the Commonwealth concedes.    In determining whether
    such an error requires reversal, we consider "(1) whether the
    defendant seasonably objected; (2) whether the error was limited
    to collateral issues or went to the heart of the case; (3) what
    specific or general instructions the judge gave to the jury
    which may have mitigated the mistake; and (4) whether the error,
    in the circumstances, possibly made a difference in the jury's
    conclusion."    Commonwealth v. Lewis, 
    465 Mass. 119
    , 130-131
    (2013), quoting Commonwealth v. Kater, 
    432 Mass. 404
    , 422-423
    (2000).     Where, as here, the error is properly objected to, we
    review the entire record to determine "whether the error was
    prejudicial to the point of requiring a reversal of the
    conviction."    Commonwealth v. Kozec, 
    399 Mass. 514
    , 523 (1987).
    23
    Thompson did testify that he dated Tripp for eight years
    and lived with her for seven. He referred to her as a "lovely
    lady" and "my girl," and became visibly emotional when shown her
    picture. Counsel in closing "may argue fair inferences that
    might be drawn from the evidence," Commonwealth v. Murchison,
    
    418 Mass. 58
    , 59 (1994), and it may indeed be a fair inference
    that Thompson loved Tripp. However, the prosecutor did not
    argue that Thompson loved Tripp, but that Thompson said that he
    loved her. Thompson did not testify as such, despite ample
    opportunities to do so over the course of his lengthy testimony.
    The statement was therefore error.
    34
    See Commonwealth v. Yesilciman, 
    406 Mass. 736
    , 746 (1990).      We
    conclude that the judge's specific curative instruction
    regarding the statement was adequate to prevent any risk of
    prejudice.    He explicitly told the jury that it had been argued
    that Thompson loved Tripp, that there was no such testimony
    given, and that the statement should be ignored.     He then
    stressed that closing arguments are not evidence.     The jury are
    presumed to have followed the judge's instructions, Commonwealth
    v. Sylvia, 
    456 Mass. 182
    , 195 (2010), and specific curative
    instructions are ordinarily sufficient to cure any
    misstatements.    See Commonwealth v. Viriyahiranpaiboon, 
    412 Mass. 224
    , 232 (1992); Commonwealth v. Palmariello, 
    392 Mass. 126
    , 133 (1984).
    In addition, we cannot say that the error, taken in
    context, made a difference in the jury's conclusion.    It was a
    single statement made in the course of a lengthy closing
    argument.    The prosecutor was attempting to rebut defense
    counsel's argument that Thompson was not credible and was
    motivated to lie to protect himself or the third-party killer.
    The prosecutor properly responded by pointing out that Thompson
    had no motive to lie and that he was nearly killed in the same
    assault.    To be sure, he should have avoided comment on the
    nature of the relationship between Thompson and Tripp,
    particularly where he had moved to exclude reference to their
    35
    relationship during the defendant's closing argument.    However,
    Thompson was exhaustively cross-examined, and defense counsel
    ably challenged his credibility throughout the trial.    Thus, the
    jury's determination on the issue of Thompson's credibility was
    not likely to have been swayed by an isolated use of the word
    "loved" in closing.     See Commonwealth v. Gomes, 
    443 Mass. 502
    ,
    510 (2005) (prosecutor's isolated slip of tongue harmless beyond
    reasonable doubt because of strength of Commonwealth's case and
    judge's instruction that closing statements are not evidence).
    f.     Purportedly perjured testimony of Thompson and DaSilva.
    The defendant argues that the judge erroneously denied his
    motion to dismiss the indictments against him because they were
    obtained through perjured grand jury testimony from Thompson and
    DaSilva.    We find no error.
    Prior to trial, counsel for Butler filed a "motion to
    dismiss the indictments or to provide alternative relief at the
    fourth retrial of this matter."    Counsel for the defendant
    joined in the motion.    The defense collectively argued that
    Thompson and DaSilva had made inconsistent statements throughout
    their testimony in the three prior trials, and that Thompson
    specifically committed perjury before the grand jury when he
    denied that he was a drug user, a fact that was contradicted by
    the testimony of several other witnesses at both the grand jury
    and the prior trials.    They contended, "[I]t is beyond question
    36
    that Morris Thompson is a liar and a perjurer and his testimony
    is therefore unreliable and cannot be used at trial."     They
    argued the same regarding DaSilva's testimony.
    For these reasons, the defense asked the judge to dismiss
    the indictments as obtained through perjury.   In the
    alternative, they asked the judge to (1) require the
    Commonwealth to provide to defense counsel all statements by
    Thompson and DaSilva it knew to be false; (2) require that the
    Commonwealth provide notice of any statements it intended to
    introduce that were inconsistent with statements made at
    previous trials; and (3) allow the defendant to impeach Thompson
    and DaSilva with inconsistent statements concerning substance
    abuse and prior bad acts.   The judge denied the motion.
    As a general rule, "a court should not inquire into the
    adequacy or competency of the evidence upon which an indictment
    is based."   Commonwealth v. Salman, 
    387 Mass. 160
    , 166 (1982).
    However, if "it appears that the integrity of the grand jury
    process has been impaired, a defendant may attack the validity
    of the indictment by way of a motion to dismiss."   
    Id. It is
    undisputed that "the knowing use by the Commonwealth or one of
    its agents of false testimony to procure an indictment is a
    ground for dismissing the indictment."   
    Id. When arguing
    that a prosecutor knowingly presented false
    testimony to a grand jury, "[t]he defendant bears the heavy
    37
    burden of proving that '(1) the evidence was given to the grand
    jury knowingly or with a reckless disregard for the truth and
    for the purpose of obtaining an indictment, and (2) that the
    evidence probably influenced the grand jury's determination to
    indict the defendant.'"   Commonwealth v. Collado, 
    426 Mass. 675
    ,
    680 (1998), quoting Commonwealth v. Kelcourse, 
    404 Mass. 466
    ,
    468 (1989).   The defendant has not met his burden here.
    Although the defendant denied being a crack cocaine user
    before the grand jury, the prosecutor elicited contradictory
    testimony at the grand jury from another witness indicating that
    Thompson had, in fact, used cocaine the night of the murder.
    Thus, the prosecutor did not attempt to secure an indictment by
    leaving the jury with the impression that Thompson had not used
    drugs that night.   See Commonwealth v. Mayfield, 
    398 Mass. 615
    ,
    621 (1986).
    Further, while Thompson and DaSilva both changed their
    testimony in some respects at trial, the defendant overstates
    the extent of their inconsistencies.   Both at the grand jury and
    at trial, Thompson's version of the most important facts was
    essentially the same.   Without fail, he consistently testified
    that he went to DaSilva's home on the night of the murder; that
    Butler produced a silver gun, robbed him, and ordered him to his
    automobile along with the defendant; that Butler and the
    defendant used a telephone wire to tie up him and Tripp; that
    38
    Tripp gave the defendant her ATM card and PIN; that Butler
    stayed behind while the defendant attempted to withdraw money;
    that the defendant slit Tripp's throat when he was unable to
    withdraw any significant amount of money; and that Butler shot
    him in the head when he tried to go to Tripp's aid.
    Similarly, DaSilva always testified that Thompson went to
    her apartment on the night of the murder; that Butler pulled out
    a silver gun and left with Thompson and the defendant; that
    Butler and the defendant returned to the apartment later, took
    off their clothes, and put them in a plastic bag; that blood
    appeared to be on a pair of gloves they had; that she spoke to
    Butler while she was in the bathroom; that Butler told her he
    had slit Tripp's throat because there was no money in her
    account; and that he told her that the defendant shot Thompson
    when he attempted to help Tripp.
    While the defendant correctly points out a number of
    differences between the testimony of Thompson and DaSilva given
    before the grand jury and in their testimony in the later
    trials, "[p]resentation of a witness who recants or contradicts
    his prior testimony is not to be confused with eliciting
    perjury."   Commonwealth v. McLeod, 
    394 Mass. 727
    , 743-744, cert.
    denied sub nom. Aiello v. Massachusetts, 
    474 U.S. 919
    (1985),
    quoting United States v. Holladay, 
    566 F.2d 1018
    , 1019 (5th Cir.
    1978).   Given that both witnesses' versions of the core facts of
    39
    the case remained essentially the same at all proceedings, and
    given that their testimony corroborated each other's stories,
    the prosecutor did not knowingly elicit perjury.     See
    Commonwealth v. Miranda, 
    458 Mass. 100
    , 111 (2010), cert.
    denied, 
    132 S. Ct. 548
    (2011) (no indication that prosecutor
    elicited perjured testimony where "there were some
    inconsistencies" between testimony from two witnesses but "many
    details corroborated each other").
    Just as importantly, the defendant has not met his burden
    of showing that Thompson's testimony that he did not use crack
    cocaine on the night of the murder "probably influenced the
    grand jury's determination to indict the defendant."       
    Collado, 426 Mass. at 680
    , quoting 
    Kelcourse, 404 Mass. at 468
    .      The core
    issue before the grand jury was simply whether the defendant and
    Butler murdered Tripp.   Where the grand jury heard substantial
    evidence regarding the defendant's participation in the murder
    presented before the grand jury, it is highly unlikely that the
    issue of Thompson's drug use had any impact on the jury's
    decision to indict the defendant, especially where evidence was
    presented suggesting that he had, in fact, used crack cocaine
    that night.   See Commonwealth v. Rice, 
    441 Mass. 291
    , 310
    (2004).
    We also find no merit to the defendant's contention that
    the judge should have allowed his motion for alternative relief.
    40
    The defense, having tried the case three times, was fully aware
    of the witnesses' inconsistencies prior to trial.24    The
    defendant's due process rights were not violated where the facts
    that went to the heart of the case remained essentially
    unchanged throughout the trials.    Further, the defense
    extensively and effectively cross-examined both witnesses
    regarding their inconsistencies, and counsel for both defendants
    adequately argued against Thompson and DaSilva's credibility in
    closing.    Commonwealth v. Gagliardi, 
    29 Mass. App. Ct. 225
    , 236
    n.9 (1990) ("Even if the Commonwealth was obligated to inform
    the defendant of [any] changes" in testimony, failure to do so
    not prejudicial where counsel "effectively cross-examined both
    witnesses").    Thus, the judge did not err in denying the
    defendant's motion.
    g.    Press release.   After closing arguments, but before the
    final jury charge was given, defense counsel informed the court
    that the Suffolk County district attorney's office had issued a
    press release on its Web site the previous night regarding the
    case.25    The press release summarized the facts of the case and
    24
    The Commonwealth also provided defense counsel with new
    statements made by Thompson and DaSilva prior to trial.
    25
    The trial prosecutor stated that he had not seen the
    press release, and there is no reason to believe that he was
    involved in the decision to publish it. However, the
    Commonwealth is responsible for the conduct of all of the
    employees in the Suffolk County district attorney's office, so
    41
    quoted the prosecutor's closing argument.   Of particular
    relevance, the press release noted that the trial was the fourth
    for both defendants.   It stated that "[t]he first proceedings
    ended in an [eleven] to one impasse, with jurors favoring
    conviction; the second trial ended abruptly when the presiding
    judge took ill; and the third ended in another hung jury, this
    one favoring conviction [ten] to two."   Press Release, Suffolk
    County District Attorney's Office, 4th Trial Ends for Duo
    Accused of Brutal Murder, Attempt (June 2, 2009).
    The prosecutor then informed the judge that an article
    about the case had been published in the daily Metro newspaper
    that morning.   Similar to the press release, the article
    referenced the fact that the trial was the fourth for the
    defendants, and noted the vote counts of the prior juries.     It
    also summarized the facts and quoted closing arguments for both
    the prosecutor and the defense.
    The judge proceeded to ask the jury whether they had read
    anything about the case in the media.    Three jurors -- jurors
    nos. 6, 4, and 1 -- all answered in the affirmative, and the
    judge conducted an individual voir dire of each of them.     Juror
    no. 6 explained that he had read the article, and that it "said
    that closing arguments occurred, it had a few quotes from
    the prosecutor's lack of involvement does not bear on our
    analysis of the conduct.
    42
    closing arguments, and that basically it was the fourth trial."
    Juror no. 4 said that she had simply scanned the article, and
    stated that it included "[n]othing [she] didn't know."     Juror
    no. 1 stated that she did not read the text of the story, and
    only saw the headline, which contained no information about the
    existence of prior trials or their vote counts.    None of the
    jurors stated that he or she had taken note of the prior vote
    counts, and all three averred that they could remain impartial.
    Immediately following this voir dire, neither defense attorney
    objected or asked for a mistrial, and counsel for the defendant
    simply asked for an instruction that the jury not read anything
    about the case in the media.    Later that day, following the
    final jury charge, counsel for Butler, joined by counsel for the
    defendant, moved for a mistrial upon their discovery that the
    article referenced the vote counts of the prior juries, and the
    judge denied their motion.     Significantly, and fortunately for
    the Commonwealth, jurors nos. 6 and 4 were ultimately designated
    as alternate jurors, and did not participate in deliberations.
    The defendant now contends that the district attorney's
    office's decision to issue the press release constituted
    egregious government misconduct necessitating reversal.
    "Dismissal of criminal charges . . . is the most severe sanction
    that the court can impose in a criminal case to remedy
    misconduct on the part of the Commonwealth."     Commonwealth v.
    43
    Mason, 
    453 Mass. 873
    , 877 (2009).   Such relief should be
    reserved for "only the most intolerable government conduct."
    Commonwealth v. Monteagudo, 
    427 Mass. 484
    , 485 n.1 (1998),
    quoting United States v. Restrepo, 
    930 F.2d 705
    , 712 (9th Cir.
    1991).    However, "[w]e have delineated limited circumstances for
    dismissing a complaint due to prosecutorial misconduct:     . . .
    if the 'governmental conduct resulted in such irremediable harm
    that a fair trial of the complaint or indictment is no longer
    possible' . . . and where the prosecutor's conduct is otherwise
    so egregious that dismissal is warranted to deter similar future
    misconduct" (citations omitted).    Commonwealth v. Merry, 
    453 Mass. 653
    , 665-666 (2009).    See Oregon v. Kennedy, 
    456 U.S. 667
    ,
    676 (1982).
    We conclude that the Commonwealth's actions were egregious.
    While the jurors were likely aware that there had been previous
    trials, due to the amount of time that had passed since the
    murder and the innumerable references to prior proceedings, the
    press release contained vote counts that showed that two prior
    juries strongly favored conviction.   It also presented the facts
    of the case in sensationalized terms26 that exclusively favored
    the Commonwealth's theory of the case.   Had the press release
    26
    For example, the press release discussed Tripp's
    "horrific death" in the course of a "brutal murder," and cited
    the prosecutor's statement that Tripp's "life literally drained
    out of her body."
    44
    been seen by any of the jurors, it easily could have caused a
    substantial likelihood of a miscarriage of justice by informing
    them that twenty-one of the twenty-four jurors who had
    previously heard the evidence believed the defendant and Butler
    to be guilty.
    The Commonwealth's contentions are unavailing.   First,
    although the information in the press release had been in the
    public domain, the Commonwealth knew, or should have known, that
    the jurors would not likely seek out such information, and that
    the breakdown of the prior vote counts was highly prejudicial.
    Additionally, the Commonwealth's argument that there is no
    evidence that the press release was the basis for the article
    strains credulity, where it was published the morning after the
    press release was issued and referenced the prior vote counts.
    In any event, even if the press release had not been the basis
    for the article, the Commonwealth should have known that the
    press release contained prejudicial information that it made
    available for use by the media at a critical moment in the
    trial, and thus its decision to issue the press release was, at
    best, gross negligence.
    However, our examination does not end with a determination
    that the Commonwealth's conduct was egregious.   The defendant is
    entitled to dismissal only where the conduct in question was of
    "sufficient significance to result in the denial of the
    45
    defendant's right to a fair trial."     Commonwealth v. Dabrieo,
    
    370 Mass. 728
    , 743 (1976), quoting United States v. Agurs, 
    427 U.S. 97
    , 108 (1975).   Here, the judge conducted a thorough voir
    dire and determined that only three jurors had seen the article.
    Of those jurors, only one took part in deliberations, and she
    had read only the headline, which contained no potentially
    prejudicial information.   We cannot say that the judge abused
    his discretion in determining that the jurors had not been
    "contaminated by extraneous information."     Commonwealth v.
    Jackson, 
    391 Mass. 749
    , 756 (1984).27
    h.   Inconsistent verdicts.   The Commonwealth proceeded at
    trial under the theory that the defendant and Butler were liable
    as joint venturers for the death of Tripp in a botched robbery.
    Accordingly, the judge instructed the jury as to the elements of
    joint venture liability.   The defendant was convicted of murder
    in the first degree based on the theories of extreme atrocity or
    cruelty and felony-murder, and Butler was convicted of murder in
    the second degree on the theory of felony-murder.    The defendant
    argues that the verdicts were inconsistent.
    "That breed of 'inconsistent' verdicts which is not allowed
    to stand under our cases is small . . . ."    Commonwealth v.
    27
    Our conclusion that the defendant was not deprived of a
    fair trial and that the trial judge did not abuse his discretion
    in the circumstances might have been different had jurors nos. 6
    and 4, who served as alternate jurors, taken part in the
    deliberations.
    46
    Scott, 
    355 Mass. 471
    , 475 (1969).   "We have applied the so-
    called 'rule of consistency' to reverse convictions only where
    three elements are present:   'a crime charged that by its nature
    requires a combination of individuals; a single trial of all the
    participants in the crime; and an acquittal of all but one of
    the participants.'"   Commonwealth v. Fluellen, 
    456 Mass. 517
    ,
    520 (2010), quoting Commonwealth v. Medeiros, 
    456 Mass. 52
    , 59
    (2010).   Here, the first and third requirements are not met, and
    thus the defendant's argument fails.
    "We have not applied the rule of consistency to
    inconsistent verdicts in joint venture trials (as we have to
    those in conspiracy trials), because the first element, a crime
    that requires a combination of individuals, is generally not
    satisfied."   
    Fluellen, 456 Mass. at 520-521
    .   See 
    Medeiros, 456 Mass. at 59-60
    (crime requiring combination of individuals must
    be defined by "united act" of two or more individuals, where
    such united act is element of crime charged).   While joint
    venture liability requires a combination of individuals, it is
    not an underlying crime.   The underlying crime here is murder,
    which does not "by its nature require[] a combination of
    individuals."   Moreover, the defendant cannot meet the third
    requirement, which necessitates an acquittal of all but one of
    the defendants.   Although Butler was convicted of a lesser
    offense, he was still found guilty of murdering Tripp.
    47
    In any event, "inconsistent verdicts for joint venturers
    tried together does not undermine our deference to juries."
    
    Fluellen, 456 Mass. at 523
    .    We generally tolerate inconsistent
    verdicts "because of the jury's inherent power to indulge their
    compassion and to enter into compromises."     
    Id. See Scott,
    355
    Mass. at 475.   Although the defendant contends that the verdicts
    in this case "make[] no sense," there was sufficient evidence to
    prove that the defendant, and not Butler, fetched a knife from
    the kitchen and slit Tripp's throat.    The jury acted well within
    their discretion in deciding to hold the defendant responsible
    to a greater degree than Butler.
    i.   Jury questions.   The defendant also argues that the
    judge improperly answered two questions from the jury regarding
    joint venture liability.   "The proper response to a jury
    question must remain within the discretion of the trial judge,
    who has observed the evidence and the jury firsthand and can
    tailor supplemental instructions accordingly."       Commonwealth v.
    Delacruz, 
    463 Mass. 504
    , 518 (2012), quoting Commonwealth v.
    Bell, 
    455 Mass. 408
    , 420 (2009).
    During the sixth day of deliberations, the judge received
    two questions from the jury.    The first asked:     "If the jury
    find[] that there was a joint venture in the commission of a
    murder, can the degree of murder differ between the principal
    and the joint venturer?"   The second asked:    "If there is a
    48
    finding of joint venture, can the theories of murder differ
    between the principal and the joint venturer?"   After a lengthy
    discussion with counsel, the judge answered both questions in
    the affirmative, over objection from the defendant.   We conclude
    that the judge's answers were not erroneous in the
    circumstances, based on the evidence before the jury in this
    case.28
    The jury were required first to determine whether the
    defendant and Butler participated in the kidnapping, robbery,
    murder, and shooting alleged in this case.   Both the defendant
    and Butler testified that they had no involvement in the crimes
    and were not present when they occurred.   Thompson testified to
    the opposite, and identified the defendant as the person who
    murdered Tripp when the robbery was unsuccessful and Butler as
    the person who shot him.   If the jury rejected the testimony of
    the defendant and Butler as to their noninvolvement in the
    crimes, which the jury plainly did, the jury were confronted
    with conflicting testimony as to which of the two committed
    which of the felonious acts and, ultimately, the degree of
    culpability that the jury would assign to their conduct.     In
    these circumstances, it was proper for the jury to consider the
    defendant and Butler as joint venturers, knowingly participating
    28
    We need not decide whether the proposition of law drawn
    from the jury's questions and the judge's affirmative responses
    regarding joint venture liability would be correct in all cases.
    49
    in the commission of some or all of the several crimes charged,
    but assigning a different level of culpability in the resulting
    murder, so long as the defendant and Butler each had, at a
    minimum, the required intent for the crimes of which they were
    convicted.   Thus, the jury could, in the exercise of their
    discretion, permissibly find the defendant and Butler guilty of
    a different degree of murder, even based on different theories.
    The jury found Butler guilty, and the defendant not guilty,
    of assault and battery by means of a dangerous weapon (a
    firearm) on Thompson.   Taken in context, it is clear that the
    jury credited Thompson's account of the events:   that the
    defendant slit Tripp's throat and Butler shot Thompson.    Thus,
    it is apparent that they intended to find the defendant guilty
    of murder in the first degree under at least the theory of
    extreme atrocity or cruelty, and were merely attempting to
    determine whether they could hold Butler responsible to a lesser
    degree or under a different theory.
    The defendant essentially seems to argue that, if he and
    Butler were both found guilty of armed robbery as joint
    venturers -- a predicate felony for felony-murder in the first
    degree -- Butler should also have been convicted of murder in
    the first degree.   To be sure, the jury could have so found.
    However, the jury have the inherent power to enter into
    compromises in reaching their verdict.   
    Fluellen, 456 Mass. at 50
    523.    The verdict here does not indicate that the jury were
    confused, but rather that they entered into a compromise in
    finding Butler guilty of murder in the second degree where they
    believed that the defendant, and not Butler, slit Tripp's
    throat.     Regardless of the correctness of the judge's answers to
    the questions, the defendant was not prejudiced by the jury's
    conscious decision to hold Butler responsible to a lesser degree
    than they were legally permitted to.29
    j.   General Laws c. 278, § 33E.   We have reviewed the
    record in accordance with G. L. c. 278, § 33E, to determine
    whether there is any basis to set aside or reduce the verdict of
    murder in the first degree, regardless of whether such grounds
    were raised on appeal.     We find no such reason, and we decline
    to exercise our powers under the statute.      We therefore affirm
    the defendant's convictions.     We also reinstate the defendant's
    two convictions of armed robbery, which the trial judge had
    dismissed as the felonies underlying the felony-murder
    conviction and therefore duplicative.     The case is therefore
    29
    The defendant also briefly argues that the absence of
    special verdict slips requiring unanimity as to joint venture or
    principal liability confused the jury. To the contrary, we have
    held that permitting general verdict slips is preferable in
    order to mitigate confusion attached to the "false distinction"
    between principal liability and joint venture liability.
    Commonwealth v. Zanetti, 
    454 Mass. 449
    , 464, 466-467 (2009).
    Again, where the jury appear to have entered into a compromise
    regarding Butler's liability, there was no likelihood of
    confusion and no prejudice suffered by the defendant.
    51
    remanded to the Superior Court for sentencing on these two
    reinstated convictions.
    So ordered.