Commonwealth v. Bonnett , 472 Mass. 827 ( 2015 )


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    SJC-11496
    COMMONWEALTH   vs.   DARKENS BONNETT.
    Essex.      May 8, 2015. - September 24, 2015.
    Present:     Gants, C.J., Cordy, Duffly, Lenk, & Hines, JJ.
    Homicide. Constitutional Law, Assistance of counsel. Practice,
    Criminal, Assistance of counsel, Opening statement,
    Presence of defendant, Identification of defendant in
    courtroom, Failure to object, Argument by counsel, Argument
    by prosecutor, Disclosure of identity of informer,
    Disclosure of evidence in possession of Federal
    authorities, Capital case. Evidence, Cross-examination,
    Identification, Videotape, Consciousness of guilt,
    Disclosure of evidence, Informer, Relevancy and
    materiality. Witness, Cross-examination, Privilege.
    Identification.
    Indictment found and returned in the Superior Court
    Department on September 15, 2010.
    The case was tried before Howard J. Whitehead, J., and a
    motion for a new trial, filed on January 27, 2014, was heard by
    him.
    Jeanne M. Kempthorne for the defendant.
    David F. O'Sullivan, Assistant District Attorney, for the
    Commonwealth.
    2
    LENK, J.   The victim, Vincent Gaskins, was shot and killed
    in a parking lot across the street from a nightclub in Lynn.
    The shooting came on the heels of an argument between the victim
    and Brandon Payne, a friend of the defendant.   A Superior Court
    jury convicted the defendant of murder in the first degree on a
    theory of deliberate premeditation.   The trial judge
    subsequently denied the defendant's motion for a new trial.         On
    appeal from his conviction and from the denial of his motion for
    a new trial, the defendant claims that (a) his trial counsel
    rendered constitutionally ineffective assistance; and (b) on the
    eve of trial, the judge erred by denying the defendant's motion
    for disclosure of the identity of an informant who, according to
    a report prepared by the Federal Bureau of Investigation (FBI),
    had heard that Payne, not the defendant, had shot the victim.
    We reject the defendant's ineffective assistance of counsel
    claim, but remand for further proceedings in connection with his
    motion for disclosure of the informant's identity.      We do not
    now see cause to exercise our authority under G. L. c. 278,
    § 33E, to reduce the verdict of murder in the first degree or to
    order a new trial.
    1.   Background.   The evidence at trial included the
    following.   Soon after 1 A.M. on a night in November, 2009,
    police found the victim lying on the ground in a parking lot
    across the street from a nightclub, with a gunshot wound in the
    3
    area of his right ear.    The victim was taken to the hospital,
    where he died two days later.
    A .22 caliber Beretta firearm was located at the crime
    scene.   The firearm did not have a magazine in it.   Without a
    magazine, it could have been loaded manually with one cartridge.
    A cartridge casing that had been discharged from the gun was
    found by the sidewalk of the parking lot.    A spent projectile
    recovered from the victim's body was consistent with that of a
    .22 caliber projectile.
    The events of the night of the shooting were described by
    Sheffery Johnson, the victim's cousin.    Johnson testified that,
    on the day of the shooting, she picked up Payne in her truck.
    Johnson and Payne drove to a parking lot across the street from
    the nightclub.   After they sat in the truck for some time,
    Johnson saw the victim leaving the nightclub.    At about the same
    time, she saw a "dark skinned guy," wearing a gray sweat suit,
    dancing outside the nightclub.   Johnson identified that man in
    court as the defendant.   According to Johnson, Payne had
    introduced her to the defendant, to whom Payne referred as "his
    boy Black," "[a] couple days before" the shooting.
    The victim and his girl friend walked over to Johnson's
    truck.   Payne and the victim had been involved in "some tension"
    several months before.    Payne got out of the truck and walked
    over to the victim.   Then Payne, the victim, and the victim's
    4
    girl friend stood behind the truck and conversed.   Johnson, who
    noticed that the victim was "getting upset," walked over and
    joined the group.   Johnson heard Payne and the victim arguing.
    The victim said, "See, that's why I don't want you fucking with
    my sister" -- apparently referring to Johnson -- because you got
    a smart-ass mouth."   Payne, for his part, asked the victim, "Why
    you keep throwing your hands in your pocket?"   Johnson "s[aw] a
    shadow pass [her]," but did not "focus[] on who it was."
    Eventually, the victim suggested that he and Payne "go
    around the corner," "shoot the ones," and "dap up."    This meant,
    according to Johnson, that the two men would have a fistfight
    and, after one of them had won, would "shake hands, and that was
    going to be it."    Johnson demurred, announcing that "[t]here's
    no fighting [her] cousin," grabbing Payne, and swinging him
    around back toward the truck.
    As soon as Johnson's back was turned, she heard a "pop"
    from the direction of where the victim had been standing.   When
    she turned around, Johnson saw the defendant standing over the
    victim's body, trying to tuck a gun into his pants,1 and then
    running off.2
    1
    In her grand jury testimony, with which she was impeached
    on cross-examination, Sheffery Johnson stated that she saw the
    defendant put "something" in his pants, and that she could not
    see that object. A police officer testified that, in an
    interview some hours after the shooting, Johnson stated
    repeatedly that she had not seen a gun.
    5
    Although, in court, Johnson identified the defendant as the
    man who had been dancing outside the club and who was standing
    over the victim's body, defense counsel's cross-examination, as
    well as the testimony of a police officer called by the defense,
    indicated that earlier she had thought otherwise.      In December,
    2009, Johnson was shown a photographic array.      She picked out an
    individual who was not the defendant as a person involved with
    the shooting.      Johnson selected the defendant's photograph as
    "familiar to her," but said that she "did not think he was there
    that night."      She also told a police officer that "she did not
    get a good look [at] the face of the person after the shooting."3
    Johnson's trial testimony was corroborated, in part, by a
    confession reportedly made by the defendant to another witness,
    Joseph Burns.      Burns was in Federal prison at the time of trial,
    and he acknowledged that he was cooperating with the authorities
    in the hope of earning a lighter sentence.      According to Burns,
    he and the defendant had done "business" together:      Burns had
    sold the defendant guns, and had bought "crack" cocaine from
    him.       The guns were .25 and 9 millimeter and one .22 caliber.
    Burns stated that, several months after the shooting, in early
    2
    Neither the victim's girl friend, who appeared before the
    grand jury, nor Brandon Payne was called to testify at trial.
    3
    The officer testified that Johnson had not known the name
    of the shooter. He could not recall if she had known the
    shooter's nickname.
    6
    2010, he met the defendant in Lynn, to which the defendant
    recently had returned from New Jersey.   The defendant told Burns
    that he and the victim "had words after the club," that the
    defendant "told [the victim] [to] take that around the corner,"
    and that the defendant then "shot [the victim] in the face."
    The gun "didn't have a clip to it so there was only one round in
    it, in the chamber."   On the day after that conversation, the
    defendant asked Burns to take him to the scene, to see if the
    firearm was still there.   Police officers testified that the
    press were never informed that the gun found at the scene did
    not have a magazine in it, or that, in a confrontation involving
    the victim, words were exchanged about "going around the
    corner."4
    Forensic evidence tied the defendant to the crime.    Two
    latent prints were identified on the weapon found at the scene.
    One, a palm print on the back strap of the gun, was of
    sufficient quality and quantity to be analyzed.   A police crime-
    scene analyst testified that, in his opinion, the palm print on
    4
    In corroboration of Joseph Burns's testimony, the
    Commonwealth offered testimony from Thomas Arrington, the
    defendant's roommate at the time of the shooting. Arrington
    testified that he saw the defendant at various times with
    several guns, none of which was a .22 caliber. See note 16,
    infra. The roommate asked the defendant if he was involved in
    the shooting, and the defendant shrugged.
    7
    the gun was the defendant's.5   Biological matter detected on the
    gun contained a mixture of deoxyribonucleic acid (DNA) from at
    least two individuals.   The defendant's DNA matched the major
    male profile found in that mixture.   The probability that the
    DNA profile of a randomly selected African-American individual
    would match the major profile was one in 2.1 trillion.6   Payne
    was found to be a potential contributor to the mixture.   The
    probability that a randomly selected African-American individual
    would be a potential contributor to the mixture was one in
    eight.   The victim was excluded as a contributor to the mixture.7
    5
    The analyst spoke of "individualizing" prints based on
    their "unique" characteristics, stating twice that "[n]o two
    individuals have ever been found to have the same unique
    sequence of" print characteristics. The defendant does not
    contend that this testimony ran afoul of our admonition that
    "opinions expressing absolute certainty about, or the
    infallibility of, an 'individualization' of a print should be
    avoided." See Commonwealth v. Gambora, 
    457 Mass. 715
    , 729 n.22
    (2010). Regardless of whether the analyst's testimony exceeded
    permissible bounds, a question we need not decide, it did not in
    any event give rise to a substantial likelihood of a miscarriage
    of justice. The defendant did not deny that he had touched the
    gun, a fact supported also by the deoxyribonucleic acid (DNA)
    evidence. See 
    id. at 728-729
    .
    6
    The record reveals that the defendant is African-American,
    and it suggests that Payne may be as well.
    7
    The officer who had collected biological material from the
    gun and from the defendant testified at trial, as did the
    analyst who had generated the DNA profiles of the defendant, the
    victim, and Payne. The analyst who had generated the DNA
    profile of the material taken from the gun, Kathleen Gould, was
    unavailable to testify. Testimony was offered by a chemist who
    had reviewed Gould's work, Cailin Drugan. As required, Drugan's
    testimony was devoted to Drugan's own analysis, not to the
    8
    Finally, five video recordings were presented at trial.
    Two were security video recordings filmed at establishments
    located near the crime scene.   The recordings provided little
    information about the circumstances of the shooting, primarily
    because of the poor quality of one recording and the unhelpful
    vantage point of the other.   The remaining recordings showed
    portions of police interviews with the defendant, with Johnson,
    and with Burns.8   The interview with the defendant revealed that
    he had a distinctive tattoo that Payne had as well.   The
    interview also showed the defendant denying, in the face of
    repeated accusations by police, that he had been at the club or
    the parking lot on the night of the shooting.
    The jury were charged on the fourth day of testimony, and
    returned a guilty verdict on the same day.   Represented by new
    counsel, the defendant filed a motion for a new trial, asserting
    that his trial counsel had provided constitutionally ineffective
    assistance.   We remanded the motion to the Superior Court.
    After an evidentiary hearing, the motion was denied by the trial
    judge.
    "facts or data underlying [Drugan's] opinion." See Commonwealth
    v. Tassone, 
    468 Mass. 391
    , 399 (2014), and cases cited.
    8
    The recording of Burns's interview was played during his
    cross-examination but was not made an exhibit. The recording of
    Johnson's interview was not shown during trial, but it was
    marked as an exhibit, and the jury were informed that they could
    watch an excerpt of that exhibit upon request. The record
    suggests that no such request was made.
    9
    2.    Ineffective assistance of counsel.   The defendant
    points to an array of ways in which, in his view, the assistance
    provided by his trial counsel was ineffective.    The standard
    that governs ineffective assistance claims is two-pronged.
    First, a defendant asserting such a claim must demonstrate
    "serious incompetency, inefficiency, or inattention of
    counsel -- behavior of counsel falling measurably below that
    which might be expected from an ordinary fallible lawyer."
    Commonwealth v. Boria, 
    460 Mass. 249
    , 252 (2011), quoting
    Commonwealth v. Saferian, 
    366 Mass. 89
    , 96 (1974).    We have
    emphasized that "[t]rial tactics which may appear questionable
    from the vantage point of hindsight, do not amount to
    ineffective assistance unless 'manifestly unreasonable' when
    undertaken."   Commonwealth v. Johnson, 
    435 Mass. 113
    , 133-134
    (2001), quoting Commonwealth v. Haley, 
    413 Mass. 770
    , 777-778
    (1992).   A tactic that was reasonable in the circumstances,
    given the information available at the time, will not support an
    ineffective assistance claim "[r]egardless whether counsel
    intended the strategy."   Commonwealth v. Jenkins, 
    458 Mass. 791
    ,
    806 (2011).
    The second prong of the ineffective assistance of counsel
    standard is, ordinarily, that counsel's inadequate performance
    "likely deprived the defendant of an otherwise available,
    substantial ground of defence."   Commonwealth v. Saferian, 
    supra
    10
    at 96.   In an appeal from a conviction of murder in the first
    degree, we apply the test "more favorable to a defendant" of
    whether there is a substantial likelihood that a miscarriage of
    justice occurred.   See Commonwealth v. Marrero, 
    459 Mass. 235
    ,
    244 (2011), citing Commonwealth v. Williams, 
    453 Mass. 203
    , 204–
    205 (2009).   Under this test, we examine "whether there was an
    error in the course of the trial (by defense counsel, the
    prosecutor, or the judge) and, if there was, whether that error
    was likely to have influenced the jury's conclusion."
    Commonwealth v. Spray, 
    467 Mass. 456
    , 472 (2014), quoting
    Commonwealth v. Wright, 
    411 Mass. 678
    , 682 (1992), S.C., 
    469 Mass. 447
     (2014).
    The defendant's ineffective assistance claim was first
    presented on a motion for a new trial.   We review the denial of
    such a motion for "a significant error of law or other abuse of
    discretion," Commonwealth v. Forte, 
    469 Mass. 469
    , 488 (2014),
    quoting Commonwealth v. Grace, 
    397 Mass. 303
    , 307 (1986),
    granting "special deference" to the rulings of a motion judge
    who, like the judge here, also presided at trial.   See
    Commonwealth v. Forte, supra, quoting Commonwealth v. Grace,
    
    supra.
       Nevertheless, on appeal from a conviction of murder in
    the first degree, the defendant "has the benefit of our
    independent review, pursuant to G. L. c. 278, § 33E . . . of the
    11
    entire record."   Commonwealth v. Carter, 
    423 Mass. 506
    , 513
    (1996).
    Against the backdrop of these principles, we examine the
    specific missteps that the defendant attributes to his counsel.
    a.    Concession that the defendant was at the scene.    The
    defendant's first argument is that his attorney erred by
    conceding that the defendant was present at the scene of the
    crime.    Counsel made this concession in passing in his opening
    statement, stating that, after the shot was fired, "Everyone
    leaves.    They walk away . . . . Everyone, including Sheffery
    Johnson and Brandon [Payne] and [the defendant]."
    This tactic was not manifestly unreasonable.     "When the
    evidence implicating the defendant is strong, and a concession
    does not undercut viable defenses, a tactical concession . . .
    is securely within the realm of effective representation."
    Commonwealth v. Evelyn, 
    470 Mass. 765
    , 771 (2015), quoting
    Commonwealth v. Arriaga, 
    438 Mass. 556
    , 581–582 (2003).     This
    kind of concession commonly is "part of a litigation strategy to
    boost [the defendant's] credibility with th[e] jury."
    Commonwealth v. Ramsey, 
    466 Mass. 489
    , 496 n.8 (2013).     The
    evidence tying the defendant to the crime, including the
    fingerprint evidence, the DNA evidence, and the detailed
    confession that the defendant reportedly made to Burns, was
    strong.   It was not unreasonable for his attorney to focus on
    12
    the argument that the defendant was not the shooter, and to
    enhance the credibility of that defense by conceding a fact that
    did not contradict it.
    b.   Johnson's testimony.   Next, the defendant argues that
    his attorney erred in connection with two aspects of the
    testimony provided by Johnson.
    First, on direct examination, Johnson was asked whether
    Payne (her date, and the defendant's friend) had gone anywhere
    after the shooting, to which she responded, "I just remember
    saying, 'Who the fuck was that that just shot my cousin?'      And I
    was like, 'Your fucking boy just killed my cousin?       Who the fuck
    was that?'    And he said, 'Black.   That was Black.'"    Defense
    counsel did not move to have the out-of-court statements of
    Johnson and Payne stricken.9
    We cannot say that counsel's failure to challenge Johnson's
    own out-of-court questions to Payne was manifestly unreasonable.
    Given that Johnson was the only percipient witness to testify,
    the prospects of a successful defense depended, to some degree,
    on undermining her identification of the defendant (which had
    occurred soon before the exchange about which the defendant
    complains).    To this end, defense counsel's cross-examination of
    9
    In closing argument, the prosecutor referred to Payne's
    out-of-court statement, saying, "Brandon [Payne] who told
    Sheffery [Johnson] he was the one who did it, he was the one who
    shot him, calls him Black."
    13
    Johnson, and his closing argument, stressed that Johnson had not
    seen the victim being shot.10   As the judge explained in his
    written decision on the defendant's motion, this line of defense
    stood to gain also from Johnson's testimony on direct
    examination that, immediately after the shooting, Johnson asked
    questions suggesting that she did not know who the shooter was.11
    Payne's reported response, "That was Black," did not serve
    the defense's objectives in the same fashion.     But we agree with
    the judge that counsel's failure to request that this remark be
    stricken did not create a substantial likelihood of a
    miscarriage of justice.   For at least two reasons, Payne's
    reported words were unlikely to carry significant weight with
    the jury.   First, as the judge noted, Payne himself was present
    at the scene -- indeed, it was he, not the defendant, who had
    been quarreling with the victim.   Payne thus had a palpable
    incentive to shift attention away from himself.    In addition,
    given Johnson's fervent belief, by the time of the trial, that
    10
    Counsel also reminded the jury, in his argument, that
    Johnson had failed to identify the defendant at a photographic
    array conducted shortly after the shooting.
    11
    Although the judge stated otherwise, the record indicates
    that defense counsel did not provide an explanation for why he
    left Johnson's out-of-court statements unchallenged.
    Nevertheless, the reasonableness of counsel's course of action
    undermines the ineffective assistance claim regardless of
    whether counsel consciously articulated the reasons for his
    actions. See Commonwealth v. Jenkins, 
    458 Mass. 791
    , 806
    (2011).
    14
    the defendant was the shooter, her stated recollection of
    Payne's words was likely to be accorded limited credence.      We
    are persuaded that, in the context of the physical and
    testimonial evidence as a whole, Johnson's impassioned
    recounting of Payne's answer to her questions did not affect the
    result.
    The second piece of Johnson's testimony with which the
    defendant takes issue occurred on cross-examination.     In the
    course of his questioning, defense counsel showed Johnson an
    excerpt from one of the security camera recordings.    While
    counsel was locating the relevant portion of the recording,
    Johnson exclaimed:
    "You can see him clearly come from the side of the
    building and blow my cousin's fucking brains out. Are you
    stupid? You clearly can see a hand come out and he blew my
    fucking cousin's brains out. Period. He did, him, Black,
    Barnett [sic], or whatever the hell his name is . . . . He
    killed my fucking cousin."
    The judge told Johnson repeatedly to "[h]old on," instructing
    her to "wait until there's a question."   Defense counsel did not
    move to strike Johnson's outburst.
    We discern neither ineffective representation nor prejudice
    to the defense.   Johnson was both the victim's cousin and
    herself the physically impaired survivor of a different shooting
    that occurred sometime before trial (a fact known to counsel,
    although not disclosed to the jury).   Defense counsel could
    15
    properly have expected that Johnson would be a volatile witness.
    As the motion judge explained, counsel's questioning elicited
    "loud and hyper emotional" testimony from Johnson that
    "detracted from her credibility."    Although this testimony
    included Johnson's exclamation that the video recording showed
    the defendant to be the shooter, the jury could see otherwise
    with their own eyes.12    See Commonwealth v. Womack, 
    457 Mass. 268
    , 275 (2010).   Consequently, Johnson's emotional and plainly
    incorrect description of the recording provided a benefit to the
    defense, by diminishing the degree to which her testimony could
    be perceived as accurate and reliable.
    c.   Johnson's in-court identification.   The defendant's
    next contention is that his counsel should have moved in limine
    to prevent Johnson from identifying the defendant in court as
    the man she had seen dancing outside the nightclub and standing
    over the victim's body.    As previously mentioned, when Johnson
    was shown a photographic array soon after the shooting, she
    selected an individual who was not the defendant as a person
    involved with the shooting, and stated that she did not think
    that the defendant's photograph depicted a man present at the
    scene.
    12
    We make this observation based on our own review of the
    recording. The judge, of course, saw the recording at trial.
    16
    In Commonwealth v. Collins, 
    470 Mass. 255
    , 262 (2014)
    (Collins), expanding on the holding in Commonwealth v. Crayton,
    
    470 Mass. 228
    , 241-242 (2014) (Crayton), we announced that, in
    future cases, in-court identifications generally will not be
    permitted where a witness participated in a pretrial
    identification procedure that "produced something less than an
    unequivocal positive identification."   An attorney is "not
    ineffective for failing to make an objection that would have
    been futile under the prevailing case law," however.    Crayton,
    supra at 261, citing Commonwealth v. Conceicao, 
    388 Mass. 255
    ,
    264 (1983).   We therefore must evaluate defense counsel's
    failure to challenge Johnson's in-court identification testimony
    under the law as it was at the time of the trial.
    Before Collins and Crayton, an in-court identification was
    excluded primarily if, "in the totality of the circumstances, it
    was 'tainted by an out-of-court confrontation . . . that [was]
    so impermissibly suggestive as to give rise to a very
    substantial likelihood of irreparable misidentification.'"
    Commonwealth v. Bastaldo, 
    472 Mass. 16
    , 31 (2015), quoting
    Crayton, 470 Mass. at 238 (omission and alteration in original).
    In all but unusual cases, an impermissibly suggestive out-of-
    court confrontation would render an in-court identification
    inadmissible only if the confrontation had been "arranged by the
    Commonwealth."   See Commonwealth v. Alcide, 
    472 Mass. 150
    , 165
    17
    (2015), quoting Commonwealth v. Bol Choeurn, 
    446 Mass. 510
    , 520
    (2006).    "An in-court identification was admissible in the
    absence of any prior out-of-court confrontation."     Commonwealth
    v. Bastaldo, supra, citing Crayton, supra.
    The defendant does not suggest that Johnson's
    identification was tainted by any suggestive out-of-court
    confrontation, whether orchestrated by the Commonwealth or
    otherwise.    Contrast Commonwealth v. Alcide, supra at 153-154
    (after failing to make unequivocal identifications of defendant
    in photographic arrays, two witnesses encountered defendant's
    photograph in newspaper articles; one witness also reported
    being shown photograph of defendant at district attorney's
    office).   Accordingly, defense counsel's failure to challenge
    Johnson's identification testimony did not amount to ineffective
    assistance.
    d.     Videotaped police interview.   As noted, the jury were
    shown a video recording of a police interview with the
    defendant.    Portions of the recording were redacted.   The
    defendant contends that his counsel was ineffective for failing
    to object to two aspects of the redacted recording.
    First, the defendant points out that the recording included
    out-of-court statements made by the officers.     The relevant
    portion of the interview was as follows:
    18
    Q.: "November 22, 2009, there was an incident at
    Soriano's. You know what Soriano's is, right?"
    A.:   "It's like a club."
    Q.:   "I know you were there . . . out in the parking
    lot."
    A.:   "No."
    Q.:   "There's a video with you in it."
    A.:   "Yeah?"
    Q.:   "Right?   I know you were there."
    A.:   "I'm gonna see the video?"
    Q.: "I can show you the video. I don't have it with
    me now . . . . But I know you were there."
    A.:   "I wouldn't be able to vouch for that."
    Q.: "People have told me you were there. I got you
    on a video there. A kid, [the victim], . . . was killed
    there . . . ."
    A.:   "You think I had something to do with that too?"
    Q.: "No, man. Were you there? 'Cause it doesn't
    look good if you tell me you weren't there and I can
    clearly see it on video, wearing a grey sweatsuit, right?
    You own a grey sweatsuit, right? . . ."
    A.: "Nah . . . . That ain't got nothing to do with
    me, bro."
    At the hearing on the defendant's motion for a new trial,
    his trial attorney explained that he chose to cooperate with the
    admission of the recorded interview as "effectively a way of
    [the defendant] getting up on the stand and being able to
    testify he wasn't there without him taking the stand."      This
    19
    line of reasoning does often support the strategic judgment that
    the introduction of out-of-court denials of guilt will benefit
    the defense.    See Commonwealth v. Barbosa, 
    457 Mass. 773
    , 799
    (2010), cert. denied, 
    131 S. Ct. 2441
     (2011); 
    id.
     at 799-800
    quoting Commonwealth v. Diaz, 
    453 Mass. 266
    , 274 (2009),
    overruled on another ground by Commonwealth v. Womack, supra;
    Commonwealth v. Merola, 
    405 Mass. 529
    , 548 (1989).     Here,
    however, the defendant was shown on the recording denying that
    he had been at the club on the night of the shooting -- a
    position that defense counsel had conceded in his opening was
    not the case.   The recorded interview consequently was likely to
    harm the defense, by suggesting that the defendant had been
    untruthful upon his arrest.
    For related reasons, however, the recording would have been
    admissible over objection, if one had been made.     It is true
    that "if a defendant is charged with a crime and unequivocally
    denies it, that denial is not admissible in evidence."
    Commonwealth v. Morse, 
    468 Mass. 360
    , 375 n.20 (2014), quoting
    Commonwealth v. Diaz, supra.13   The defendant's denials here,
    13
    "The rationale for the rule is that '[e]xtrajudicial
    accusatory statements made in the presence of a defendant, which
    he has unequivocally denied, are [inadmissible] hearsay.'"
    Commonwealth v. Morse, 
    468 Mass. 360
    , 375 n.20 (2014), quoting
    Commonwealth v. Womack, 
    457 Mass. 268
    , 272 (2010). Such
    accusatory statements shed their hearsay character when they are
    offered not for the truth of the matters asserted, but to
    provide context for admissible statements of the defendant. See
    20
    however, were not of the requisite unequivocal character that
    would render them inadmissible.     In particular, when told by
    police that a video recording showed him at the club, the
    defendant first asked "Yeah?" and then wondered aloud whether he
    would be permitted to see that video recording.     And although he
    had initially responded in the negative when told that police
    knew he had been in the parking lot where the victim was shot,
    the defendant subsequently said only that he "wouldn't be able
    to vouch for that."   These were "equivocal response[s] that
    could be construed as self-incriminating and therefore
    admissible," Commonwealth v. Lewis, 
    465 Mass. 119
    , 127 (2013);
    the true meaning of these responses "was for counsel to argue
    and the jury to determine."   
    Id.
        Furthermore, to the extent
    Commonwealth v. Pytou Heang, 
    458 Mass. 827
    , 855 (2011); United
    States v. Walter, 
    434 F.3d 30
    , 33-35 (1st Cir.), cert. denied,
    
    547 U.S. 1999
     (2006). Although the defendant does not so argue,
    it may have been appropriate for his attorney to request an
    instruction limiting the jury's consideration of the officers'
    recorded statements to this nonhearsay purpose. See
    Commonwealth v. Carrion, 
    407 Mass. 263
    , 275 (1990); Mass.
    G. Evid. § 105 (2015). Even assuming that such an instruction
    should have been requested and given, we discern no substantial
    likelihood of a miscarriage of justice. The officers'
    statements played an insubstantial role in the evidentiary
    picture presented at trial. In particular, the jury would have
    seen for themselves that the defendant was not, as the officers
    stated, identifiable on a video recording of the crime scene.
    See Commonwealth v. Womack, supra at 275. There was no
    suggestion at trial that the officers' mention of "people" who
    reported seeing the defendant at the scene referred to
    individuals other than the trial witnesses. And the statement
    that "it doesn't look good" if the defendant were to say falsely
    that he was not at the scene was a commonsense observation, not
    a fact otherwise unknown to the jury.
    21
    that the defendant denied being at the nightclub on the night of
    the shooting, the evidence suggested, as defense counsel
    conceded, that that denial was a "false statement," admissible
    "to show consciousness of guilt."    See Commonwealth v. Lavalley,
    
    410 Mass. 641
    , 649 (1991).    In sum, defense counsel's failure to
    challenge the admission of the recording made no difference.
    The defendant's second complaint about the recorded
    interview is that the recording showed him wearing handcuffs.
    Defense counsel did not overlook that issue at trial.    Before
    the Commonwealth introduced the video, counsel informed the
    judge that his "[n]umber one concern" was that "the video has
    [the defendant] being interviewed while he has handcuffs on his
    hands."    Counsel argued that "[it] would be prejudicial for the
    jury to see that."    The judge disagreed, reasoning essentially
    that the probative value of the recording was not "substantially
    outweighed by the danger of unfair prejudice or the risk of
    misleading the jury."    See Commonwealth v. Scott, 
    470 Mass. 320
    ,
    330 (2014), quoting Commonwealth v. Pytou Heang, 
    458 Mass. 827
    ,
    851–852 (2011).
    Although defense counsel arguably failed to preserve an
    objection to that ruling, this omission worked no harm on the
    defense.   "The weighing of the prejudicial effect and probative
    value of evidence is within the sound discretion of the trial
    judge, the exercise of which we will not overturn unless we find
    22
    palpable error."   Commonwealth v. Bonds, 
    445 Mass. 821
    , 831
    (2006).   No such palpable error occurred here.   As the judge
    noted, the admission of a recording showing the defendant to
    have been handcuffed at the police station, soon after being
    arrested, does not signal to the jury that the judge has
    determined the defendant to be dangerous.14   Such a recording is
    thus less prejudicial than an order that the defendant be
    handcuffed in the court room.   On the other side of the scale,
    the recorded interview of the defendant was probative both of
    the defendant's ties to Payne and of a consciousness of guilt.
    A preserved objection to the recording thus would have been
    fruitless.
    e.   Gun and drug sales.   The defendant argues that his
    attorney should have objected to Burns's testimony that Burns
    had sold the defendant guns, and that the defendant had sold
    Burns drugs.   At least one question posed by defense counsel
    also referred to these transactions.    Again, we discern neither
    14
    The judge did not address a related issue posed by the
    recording, namely, that portions of it revealed, at least to an
    attentive viewer, that the defendant had been arrested and
    handcuffed in connection with a different, subsequent
    investigation. It is possible that this issue could have been
    averted if defense counsel had requested additional redactions
    to the recording. In any event, we are confident that
    presentation of this issue would not have altered the judge's
    highly discretionary decision to admit the recording, and that
    any inference by the jury that the defendant may have been
    involved in a later, undescribed incident would not have
    influenced their decision.
    23
    ineffective assistance nor the requisite prejudice to the
    defense.
    Defense counsel explained, in connection with the
    defendant's motion for a new trial, that his goal in coping with
    Burns's testimony was to suggest that it was not plausible that
    the defendant would have confessed to Burns.   In order to
    achieve this aim, counsel sought to stress that "[t]heir
    business relationship was just that, a business relationship."
    This theme was pursued in counsel's cross-examination, which
    revealed that Burns and the defendant "never really hung around"
    and that "[e]very time [Burns] met with [the defendant] was
    either to sell a gun or to buy drugs."   In closing, counsel
    disparaged Burns's assertion that "someone who . . . knows him
    only for business, has confessed to him about shooting someone."
    This tactic was not unreasonable.   And although it is possible
    that counsel could have pursued the same approach while more
    artfully skirting the precise nature of the defendant's role in
    his business dealings with Burns, we cannot say that counsel's
    performance fell "measurably below" what would be expected of an
    "ordinary fallible lawyer."   Commonwealth v. Boria, 
    460 Mass. 249
    , 252 (2011), quoting Commonwealth v. Saferian, 
    366 Mass. 89
    ,
    96 (1974).
    Nor did counsel's performance on this score create a
    substantial likelihood of a miscarriage of justice.   In his
    24
    decision on the defendant's motion for a new trial, the judge
    indicated that he would have denied a motion to exclude the
    evidence that Burns had sold guns to the defendant, if one had
    been made.   Such a decision would not have been reversible
    error.    Evidence showing a defendant's access to firearms may be
    "admissible for purposes other than showing a defendant's bad
    character or criminal propensity," Commonwealth v. McGee, 
    467 Mass. 141
    , 157 (2014) (McGee), if the probative value of that
    evidence "outweigh[s] the likelihood that [it] will have an
    impact on the jury unfair to a defendant."    
    Id.,
     quoting
    Commonwealth v. Toro, 
    395 Mass. 354
    , 358 (1985).    Our recent
    decisions have indicated that this standard typically will not
    be satisfied by evidence showing only "a person's general
    acquaintance with weapons," McGee, supra, quoting Commonwealth
    v. Toro, 
    supra,
     particularly where the weapons in question
    "definitively could not have been used in the commission of the
    crime."   McGee, supra, quoting Commonwealth v. Barbosa, 
    463 Mass. 116
    , 122 (2012).   Here, while the Commonwealth did not
    suggest that the victim was shot with a gun sold by Burns,15
    there also was no "forensic evidence establish[ing] that the
    weapon[s] could not have been used to commit the crime."      See
    15
    Burns testified that he regularly obliterated the serial
    numbers from firearms before selling them. The gun recovered at
    the scene of the shooting had an identifiable serial number on
    it.
    25
    McGee, supra at 157-158, citing Commonwealth v. Barbosa, 463
    Mass. at 123.    And the evidence in question was not only
    probative of the defendant's access to firearms; it also
    represented significant information for the jury to consider in
    assessing Burns's credibility.16   In addition, the judge provided
    an appropriate limiting instruction, stating that the jury could
    consider "testimony concerning certain involvement that [the
    defendant] may have had in the trafficking of guns" only as to
    "whether [the defendant] had access to a firearm at or around
    the time of the killing" and "as to the relationship between Mr.
    [Burns] and [the defendant]."    See McGee, supra at 158, and
    cases cited.    Finally, the evidence that the defendant had
    purchased guns "received only 'scant attention' at trial."      Id.,
    quoting Commonwealth v. Barbosa, 
    supra at 124
    .17   Counsel's
    failure to object was, again, without consequence.
    16
    Similarly, the testimony of Arrington, the defendant's
    roommate, that he had seen the defendant with guns, but not with
    a .22 caliber, see note 4, supra, was probative of Burns's
    credibility, because it tended to confirm Burns's testimony that
    he had sold the defendant a variety of guns. Other factors
    noted in our discussion of Burns's testimony also would have
    countered any claim (which the defendant does not make) that the
    admission of Arrington's testimony was reversible error, and, by
    extension, any claim (also not made) that defense counsel's
    failure to object to that testimony amounted to ineffective
    assistance.
    17
    The evidence that the defendant had sold drugs to Burns
    received even less attention at trial, and was unlikely to sway
    the jury's view of whether the defendant was guilty of murder.
    26
    f.     Closing arguments.   The defendant's last pair of
    complaints about his attorney's performance concerns the closing
    arguments.    One of these criticisms concerns defense counsel's
    own argument; the other, counsel's failure to challenge a
    portion of the prosecutor's argument.
    Defense counsel's closing was devoted to the argument that
    the Commonwealth had failed to prove that the defendant was the
    shooter.     According to the defendant, his attorney was remiss in
    failing to argue also that the shooter did not premeditate the
    killing.   The judge understood this argument to suggest that
    counsel should have taken the inconsistent position, "I didn't
    do it, but if I did, it wasn't murder in the first degree."      We
    do not think that the argument is so lightly dismissed.     It
    would have been consistent, and conceivably beneficial, for
    counsel to have argued that the defendant was not proved to be
    the shooter, and that the shooter -- whoever he was -- was not
    proved to have acted with premeditation.     Even so, we cannot say
    that the approach taken by counsel was manifestly unreasonable.
    As indicated earlier, a tactical decision to focus on the most
    important or promising lines of defense, while relinquishing
    others, can serve to enhance the credibility of a defense, in
    part by warding off the impression that a defendant is grasping
    at straws.    See Commonwealth v. Ramsey, 
    466 Mass. 489
    , 496 n.8
    27
    (2013).18    The fact that the tactic chosen "may appear
    questionable from the vantage point of hindsight" does not
    suffice to support an ineffective assistance claim.      See
    Commonwealth v. Johnson, 
    435 Mass. 113
    , 133-134 (2001), quoting
    Commonwealth v. Haley, 
    413 Mass. 770
    , 777-778 (1992).
    Lastly, the defendant contends that his attorney should
    have objected to the prosecutor's statement, in closing, that
    the defendant "waited in the shadows like a coward" before
    shooting the victim.     Any error on this score does not warrant
    reversal.    Johnson testified that, while Payne and the victim
    were arguing, she "s[aw] a shadow pass [her], but, . . . never
    focused on who it was."    In the security camera footage, the
    entire scene appears to be bathed in shadows, whether due to the
    late-night hour, the poor quality of the recordings, or both.
    At worst, the prosecutor's remark was a minor embellishment, see
    Commonwealth v. Roy, 
    464 Mass. 818
    , 834 (2013), citing
    Commonwealth v. Sanna, 
    424 Mass. 92
    , 107 (1997), and counsel's
    failure to object to that remark did not give rise to a
    substantial likelihood of a miscarriage of justice.
    g.     Cumulative effect.   Considered both separately and
    cumulatively, the missteps that the defendant attributes to his
    counsel do not rise to the level of a violation of rights
    18
    Otherwise put, a reasonably effective attorney could have
    been concerned that the jury might overlook the subtlety of the
    claim, "I didn't do it, and whoever did it did not premeditate."
    28
    requiring a new trial.   The assistance provided to the defendant
    by his attorney was sufficiently effective to render the trial
    fair, even if not perfect, and that is all that can be asked.
    See Commonwealth v. Brescia, 
    471 Mass. 381
    , 391 (2015), quoting
    Commonwealth v. Graves, 
    363 Mass. 863
    , 872–873 (1973) ("[a]
    defendant is entitled to a fair trial but not a perfect one,
    'for there are no perfect trials'"); Commonwealth v. Mahar, 
    442 Mass. 11
    , 20-21 (2004) (Sosman, J., concurring), quoting
    Strickland v. Washington, 
    466 U.S. 668
    , 689 (1984) ("the purpose
    of the effective assistance guarantee of the Sixth Amendment [to
    the United States Constitution] is . . . to ensure that criminal
    defendants receive a fair trial").
    3.   Unidentified informant.   The defendant's other claim of
    error concerns rulings made by the judge with regard to the
    disclosure of the identity of a purportedly confidential
    informant.   One week before trial, defense counsel received from
    the Commonwealth a report prepared by the FBI, apparently
    produced as a document containing "facts of an exculpatory
    nature" pursuant to Mass. R. Crim. P. 14 (a) (1) (A) (iii), as
    amended, 
    442 Mass. 1518
     (2004).    The report recounted a meeting
    between an informant and three law enforcement agents:     an FBI
    special agent, and two officers of the Lynn police department,
    who also served as "task force officers."   The report described
    the informant as "[a]n individual, who is in a position to
    29
    testify."    According to the report, the informant "heard from
    someone that the word on the streets of Lynn" was that "PAYNE
    shot and killed [the victim].   Immediately after the shooting,
    PAYNE provided the pistol to [the defendant], aka BLACK, and
    ordered him to get rid of the weapon."    The report added that
    the informant knew that the defendant had "moved from New Jersey
    to Lynn, MA, shortly before [the victim's] murder."
    Upon receiving this report, defense counsel moved for an
    order requiring the Commonwealth to provide him with the name
    and address of the informant.   A judge of the Superior Court,
    who was not the trial judge, ordered the Commonwealth to
    "inquire of [the Lynn police officers] as to the identity of 'an
    individual, who is in a position to testify.'"    On the first day
    of jury selection, defense counsel told the trial judge that the
    prosecutor had responded that "the Lynn officers were not
    authorized to disclose any of that information to counsel."
    Counsel requested that the Commonwealth "still be ordered to
    provide . . . that information."   He explained that, "if [he]
    knew the name of that someone, [he] would send an investigator
    out to speak to that person to see if there's any relevant
    evidence."
    At the judge's request, the prosecutor telephoned an
    assistant United States attorney (AUSA) involved with the FBI's
    dealings with the informant.    After that conversation, the
    30
    prosecutor told the judge that, according to the AUSA, the
    informant was considered to be "a confidential source," who "may
    be in a position to testify at some point down the road."    The
    prosecutor reported that the Lynn police officers were "not
    authorized to disclose" information about the informant's
    identity, which those officers had acquired "in their capacity
    as members of the [F]ederal task force."   He said also that the
    AUSA had "explain[ed] . . . [that] in the [F]ederal rules, they
    don't have to disclose [whether a witness will testify] until
    [twenty-one] days before trial . . . . And [the AUSA] wouldn't
    get into any of that with me and I didn't ask."
    The judge then denied the defendant's motion for disclosure
    of the informant's identity.   The judge also declined to permit
    defense counsel to pose questions about the informant's identity
    to the Lynn police officers.   The defendant preserved his
    objections to these rulings.
    The judge gave two reasons for his rulings.    The first
    concerned the fact that the informant's identity was held by the
    FBI, not by State prosecutors or police.   The second reason was,
    in essence, that the defendant had no right to learn of the
    informant's identity, irrespective of which body held that
    information.   Taking up these reasons in order, we conclude that
    neither suffices to support the judge's rulings.
    31
    a.    Dual sovereignty.   The judge's first stated reason was
    that the "[F]ederal government is a separate sovereign," which
    "has refused to comply."    The judge reasoned that "the way we
    have to look at it is it's as though the United States was
    Bolivia.    And Bolivia has refused to give us the information."
    For purposes of our discussion, we adopt the far-from-certain
    premise that the information reported by the prosecutor sufficed
    to establish that the Commonwealth possessed no knowledge of the
    informant's identity.19    Even so, we do not share the analysis
    offered by the judge.
    We have recognized for many years that the interface
    between State and Federal sovereigns in criminal investigations
    and prosecutions "creates a potentiality for unfairness which
    would need correction if realized in practice."     Commonwealth v.
    Liebman, 
    379 Mass. 671
    , 674 (1980) (Liebman I), S.C., 
    388 Mass. 483
     (1983) (Liebman II).    In order to allay this concern, we
    have held that "in dual sovereignty situations . . . 'the burden
    of securing Federal cooperation should be placed on the State
    prosecutor rather than on the defendant.'"     Commonwealth v.
    Lykus, 
    451 Mass. 310
    , 327 (2008), quoting Liebman I, supra at
    19
    Notwithstanding the limited, second-hand information
    relayed by the prosecutor, it remains unclear whether the
    investigation that gave rise to the Federal Bureau of
    Investigation report was conducted jointly with the
    Commonwealth, and what role, precisely, the Lynn police officers
    played in that investigation.
    32
    675.    See Matter of Pressman, 
    421 Mass. 514
    , 518 (1995);
    Commonwealth v. Donahue, 
    396 Mass. 590
    , 598-600 (1986).        In an
    instructive case, the defendant moved unsuccessfully to obtain
    Federal grand jury minutes, to which he would have been entitled
    had the grand jury been convened by the State (or, it appeared,
    had the trial been conducted in Federal court).     Liebman I,
    supra at 674-675.     We remanded with instructions that the
    district attorney be required "to take whatever steps are
    appropriate to secure the minutes in question."     Id. at 675.
    "If the Federal court . . . refuses to send to the State court
    the requested transcripts," we said, the State indictment would
    be dismissed.   Id.   See Commonwealth v. Lykus, supra;
    Commonwealth v. Donahue, 
    supra at 598-599
    ; Liebman II, supra at
    486-487.
    The same analysis applies here.   Assuming that the
    defendant is entitled to the information that he seeks, that
    entitlement must not be foiled by "[t]he introduction of two
    sovereignties," each able to withhold information by asserting
    its independent sovereignty.     See Liebman I, 
    379 Mass. at 674
    .
    "[C]ooperation between State and Federal prosecutors is and
    should be common enough" that the equitable course, here, too,
    is to require that the Commonwealth bear the onus of securing
    33
    Federal cooperation.     See Commonwealth v. Donahue, 
    396 Mass. at 600
    , quoting Liebman I, supra at 675.20
    b.   Informant privilege.    The second reason the judge gave
    for his rulings was that the information relayed in the FBI
    report "is so remote that it does not warrant penetrating what
    appears to be a claim of informant privilege."     This line of
    reasoning, while relevant to an appropriate examination of the
    defendant's motion for disclosure of the informant's identity,
    should not have been the beginning and end of that examination.
    "The government's privilege not to disclose the identity of
    an informant has long been recognized in this Commonwealth."
    Commonwealth v. Dias, 
    451 Mass. 463
    , 468 (2008) (Dias), and
    cases cited.     This "informant privilege" may be asserted where
    the Commonwealth otherwise would be required to provide an
    informant's identity to a defendant as part of its discovery
    obligations.21    Roviaro v. United States, 
    353 U.S. 53
    , 59 (1957)
    20
    A different analysis applies where a defendant asserts
    after trial that, although no judicial error occurred, the
    prosecutor "suppress[ed] . . . evidence favorable to an accused"
    concerning a confidential informant. See Commonwealth v. Daye,
    
    411 Mass. 719
    , 728 (1992), quoting Brady v. Maryland, 
    373 U.S. 83
    , 87 (1963). A determination that the undisclosed information
    was held only by the Federal government may defeat this type of
    claim, because "[t]he prosecutor cannot be said to suppress that
    which is not in his [or her] possession or subject to his [or
    her] control." Commonwealth v. Donahue, 
    396 Mass. 590
    , 596
    (1986).
    21
    There is apparently no disagreement that, absent the
    assertion of the informant privilege, the identity of the person
    34
    (Roviaro).    The justification for permitting the Commonwealth to
    maintain an informant's anonymity is the need to encourage
    "citizens to communicate their knowledge of the commission of
    crimes to law-enforcement officials."     
    Id.
    The analysis of whether an informant's identity should be
    kept confidential or disclosed may best be described as
    generally occurring in two stages.     The first stage involves
    preliminary determinations as to (a) whether the Commonwealth
    has properly asserted an informant privilege, and (b) whether
    the defendant has adequately challenged the assertion of the
    privilege as an impermissible interference with his or her right
    to present a defense.    The second stage of the analysis then
    involves a balancing test, introduced by the United States
    Supreme Court in Roviaro, supra, in which the interest of the
    public in protecting the anonymity of informants is weighed
    against the defendant's right to defend himself.
    The preliminary stage calls for the two following
    inquiries.    First, "[t]he scope of the [informant] privilege is
    limited by its underlying purpose."     Id. at 60.   Accordingly,
    the privilege may be asserted only where disclosure would
    endanger the informant or otherwise impede law enforcement
    efforts.     See id.; Puerto Rico v. United States, 
    490 F.3d 50
    , 62
    who provided the information detailed in the report produced to
    the defendant would be discoverable under Mass. R. Crim. P.
    14 (a) (1) (A) (iii), as amended, 
    442 Mass. 1518
     (2004).
    35
    (1st Cir. 2007), cert. denied, 
    552 U.S. 1295
     (2008).
    Ordinarily, the facts indicating whether or not the privilege
    would serve its underlying purpose are within the Commonwealth's
    control.
    Second, if the Commonwealth properly has asserted an
    informant privilege, the defendant may request that the
    privilege be set aside on the grounds that it "interferes with a
    fair defence."   Commonwealth v. Johnson, 
    365 Mass. 534
    , 544
    (1974), S.C., 
    372 Mass. 185
     (1977) (Johnson).   A defendant
    making such a claim is required to present "some offering so
    that the trial judge may assess the materiality and relevancy of
    the disclosure to the defense, if that relevancy is not apparent
    from the nature of the case and the defense offered thereto."
    Commonwealth v. Kelsey, 
    464 Mass. 315
    , 323 (2013) (Kelsey),
    quoting Commonwealth v. Swenson, 
    368 Mass. 268
    , 276 (1975).22
    The relatively undemanding nature of this standard is the result
    of the fact that, again, the details concerning privileged
    information sought by the defendant ordinarily are not in his or
    22
    We have said that this requirement of materiality asks
    "whether disclosure [is] needed . . . for a fair presentation of
    [the defendant's] case." Commonwealth v. Kelsey, 
    464 Mass. 315
    ,
    323 (2013) (Kelsey). See Commonwealth v. Dias, 
    451 Mass. 463
    ,
    469 (2008) (Dias), quoting Commonwealth v. Lugo, 
    406 Mass. 565
    ,
    571 (1990), and Commonwealth v. Ennis, 
    1 Mass. App. Ct. 499
    ,
    501–502 (1973) ("standard of materiality or something roughly
    akin thereto" has been described variably with terms "'helpful,'
    'material,' 'relevant,' [and] 'important'").
    36
    her possession.   See Commonwealth v. Hernandez, 
    421 Mass. 272
    ,
    276 (1995), quoting Johnson, supra at 547.
    The second stage of the analysis is undertaken if the
    privilege both has been asserted properly by the Commonwealth
    and has been challenged adequately by the defendant.   Then the
    judge must decide whether the informant's identity and
    concomitant information are sufficiently "relevant and helpful
    to the defense of an accused" that it must be disclosed.     See
    Dias, 451 Mass. at 468, quoting Roviaro, 
    supra at 60-61
    .     This
    determination requires the judge to engage in Roviaro's
    "balancing [of] the public interest in protecting the flow of
    information against the individual's right to prepare his [or
    her] defense," taking into account "the crime charged, the
    possible defenses, the possible significance of the [privileged]
    testimony, and other relevant factors."   Dias, supra at 468-469,
    quoting Roviaro, 
    supra at 62
    .
    The judge's denial of the defendant's motion for disclosure
    of the informant's identity here was not grounded in an informed
    application of this framework.   Beginning with the element of
    the preliminary inquiry concerned with the Commonwealth's
    assertion of the informant privilege, a meager basis at best was
    presented to believe that the privilege was appropriately being
    invoked.   All of the information concerning the informant was
    conveyed to the judge second-hand, by a State prosecutor with no
    37
    personal knowledge of the circumstances.    The prosecutor could
    say only, in essence, that the Federal government did not wish
    to reveal the informant's identity at that time -- and that the
    AUSA involved "wouldn't get into any of that . . . and I didn't
    ask."     No details were provided with regard to whether the
    authorities were treating the individual interviewed by the FBI
    as a confidential informant who must remain anonymous.      And no
    facts presented indicated that disclosure of the informant's
    identity would imperil the informant or injure other law-
    enforcement interests.23    While it is possible that the
    importance of concealing an informant's identity is, in some
    instances, self-evident, we do not think that it was here,
    particularly in view of the statement in the FBI report that the
    informant was "in a position to testify."    This enigmatic
    statement at least called for further inquiry.
    The other element of the preliminary analysis, namely, the
    adequacy of the defendant's contention that the informant
    privilege should give way to his right to present a defense, may
    have been the focus of the judge's remark that the information
    contained in the FBI report was "remote."    For at least two
    reasons, however, the remoteness of that information did not
    23
    Among the matters that remained unexplored when the judge
    made his rulings was the nature of the investigation in which
    the informant was involved, see note 19, supra, including
    whether that investigation was connected in any way to the crime
    for which the defendant was being tried.
    38
    itself establish that the informant's identity was not material
    and relevant to the defense.   With regard to relevancy, the
    defendant posited at trial that the victim had been shot by
    another man; the informant's report that Payne was the shooter
    was thus intensely relevant to the theory of the defense.
    Contrast Kelsey, supra at 326 (identity of percipient witness
    not obviously relevant to defense where defendant did not
    apparently intend to pursue defense of misidentification).
    As for the materiality of the informant's identity, it is
    true that, according to the FBI report, the information relayed
    by the informant concerned the "word on the streets of Lynn";
    standing alone, "'word on the street' carries no indicia of
    reliability."   Commonwealth v. Silva-Santiago, 
    453 Mass. 782
    ,
    804 (2009).   Still, the informant apparently was able to provide
    details that went beyond a threadbare rumor, such as the fact
    that both Payne and the defendant had handled the murder weapon
    (which was compatible with the DNA evidence) and the fact that
    the defendant had traveled to New Jersey (which dovetailed with
    Burns's trial testimony).   See id. at 804-805 (reliability of
    "word on the street" may be bolstered by showing "that the
    'word' came from a percipient witness" or by other facts
    rendering that "word" inherently plausible).   At a minimum, the
    question whether the informant was a percipient witness to the
    39
    shooting, or whether he had spoken to a percipient witness,
    should have been explored.
    Moreover, in some circumstances, knowledge of the
    informant's identity can offer substantial aid to the defense
    even if the informant himself cannot provide testimony
    sufficiently relevant and reliable to be admitted at trial.     See
    Dias, supra at 473 ("While calling the informant as a witness
    might be one way of putting that information to good use in this
    case, it is not the only way, and it may not be as useful to the
    defense as knowledge of his [or her] identity before trial");
    Roviaro, 
    supra at 64
     ("The desirability of . . . interviewing [a
    confidential informant] in preparation for trial . . . was a
    matter for the accused rather than the Government to decide");
    United States v. Saa, 
    859 F.2d 1067
    , 1074 (2d Cir. 1988), cert.
    denied, 
    489 U.S. 1089
     (1989) and cases cited ("the right under
    Roviaro to information about an informant [is] not merely so
    that the defense can call the informant to testify, but so that
    it can seek to interview him first").   Here, there was no
    apparent reason to doubt that, by employing an investigator or
    other means, the defendant might have explored whether the
    informant knew other pertinent information, whether the person
    who had told the informant about the "word on the streets of
    Lynn" could be identified, and whether that person could
    elaborate on the sources and substance of his or her
    40
    information.   The Commonwealth was of course free to endeavor to
    persuade the judge that disclosure of the informant's identity
    would yield little of value to the defense.24   If the judge were
    persuaded, upon a proper showing, that the informant's identity
    would be unlikely to lead the defendant to more than second- or
    third-hand "word on the street," the conclusion that the
    defendant had made an inadequate showing of materiality might
    have been warranted.   But no such showing was undertaken.
    We need not speculate about what the results of a second-
    stage Roviaro balancing exercise might have been, had the judge
    properly determined that the Commonwealth appropriately asserted
    the informant privilege and that the defendant made an adequate
    offering concerning the materiality and relevancy of the
    informant's identity to the defense.25   The point is that
    "[t]here was no attempt by the judge at orderly appraisal of the
    actuality of any threat and the materiality of the [information]
    24
    "In a case where it is not clear from the record that
    disclosure of an informant's identity would provide something
    material to the defense, a judge may hold an in camera hearing
    to assist in making that determination." Dias, supra at 472.
    "The nature of the in camera hearing is left to the discretion
    of the judge, who may, in light of the particular facts,
    determine whether the presence of counsel is necessary or
    appropriate." Id. at 472 n.15, citing Commonwealth v. Lugo, 
    23 Mass. App. Ct. 494
    , 504 (1987), S.C., 
    406 Mass. 565
     (1990). See
    generally Commonwealth v. Shaughessy, 
    455 Mass. 346
    , 354 (2009),
    and cases cited.
    25
    Any second-stage balancing in which the judge may have
    engaged implicitly was premature and, consequently, misplaced.
    41
    sought.    Nor was any compromise considered that might allow
    disclosure while minimizing danger to the [informant]."
    Johnson, 
    365 Mass. at 546
    .    See Kelsey, 464 Mass. at 327-328.
    We remand for further proceedings to conduct the requisite
    "orderly appraisal" of the relevant factors in accordance with
    the framework we have described.
    We envision that those proceedings will include the
    following.    Upon remand, a hearing should be held to reconsider
    the defendant's pretrial motion for disclosure of the
    informant's identity.    If the judge determines that the motion
    was meritorious,26 the defendant should be afforded a reasonable
    interval to try to interview the informant and to investigate
    pertinent information, if any, that the informant may provide.
    If the defendant then successfully presents evidence that "might
    create a reasonable doubt that did not otherwise exist, a new
    trial may be appropriate.    If . . . not, the verdict and
    judgment may be permitted to stand."    Liebman I, 
    379 Mass. at 676
    .27    Because the defendant preserved the issue prior to the
    26
    If the pretrial motion was not meritorious, but new
    circumstances permit the informant's identity to be disclosed
    (whether now or in the future), the defendant may seek a new
    trial upon a showing that newly discovered evidence "would
    probably have been a real factor in the jury's deliberations."
    Commonwealth v. Cowels, 
    470 Mass. 607
    , 617 (2015), quoting
    Commonwealth v. Grace, 
    397 Mass. 303
    , 305–306 (1986).
    27
    In Commonwealth v. Liebman, 
    388 Mass. 483
    , 487 n.4
    (1983), we noted that the standard of review delineated in
    42
    current appeal, the reconsidered decision on the merits of his
    pretrial motion -- and, if that motion is allowed, the decision
    as to whether information uncovered as a result warrants a new
    trial -- will be appealable as decisions on a postconviction
    motion filed before direct appeal.   See Liebman II, supra;
    Liebman I, supra.
    4.   Conclusion.   We reject the defendant's claim that he
    was denied the right to effective assistance of trial counsel.
    We remand the matter to the Superior Court for further
    proceedings consistent with this opinion concerning the
    defendant's motion for disclosure of the informant's identity.
    On our review of the entire record now before us, pursuant to
    G. L. c. 278, § 33E, we do not discern cause to reduce the
    verdict of murder in the first degree or to order a new trial.
    So ordered.
    Commonwealth v. Liebman, 
    379 Mass. 671
    , 676 (1980), is "less
    exacting . . . than the constitutional requirements of [Federal
    decisions]." More recently, we clarified that an asserted right
    to disclosure of an informant's identity is a constitutional
    claim that, when preserved, is reviewed "to determine whether
    the error, if any, was 'harmless beyond a reasonable doubt.'"
    Kelsey, supra at 319, quoting Commonwealth v. Bacigalupo, 
    455 Mass. 485
    , 495 (2009).