Commonwealth v. Watkins , 473 Mass. 222 ( 2015 )


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    SJC-09950
    COMMONWEALTH   vs.   KYLE WATKINS.
    Bristol.      January 9, 2015. - November 24, 2015.
    Present:   Gants, C.J., Spina, Cordy, Botsford, & Duffly, JJ.
    Homicide. Identification. Evidence, Identification, Disclosure
    of evidence, Exculpatory, Third-party culprit, Hearsay.
    Due Process of Law, Disclosure of evidence. Practice,
    Criminal, Capital case, Motion for a required finding, New
    trial, Disclosure of evidence, Agreement between prosecutor
    and witness, Prosecutor's conflict of interest, Conduct of
    prosecutor, Assistance of counsel.
    Indictments found and returned in the Superior Court
    Department on September 25, 2003.
    The cases were tried before E. Susan Garsh, J., and a
    motion for a required finding of not guilty or, in the
    alternative, for a new trial, filed on March 21, 2011, was heard
    by her.
    Janet H. Pumphrey for the defendant.
    Shoshana E. Stern, Assistant District Attorney, for the
    Commonwealth.
    DUFFLY, J.    In June, 2005, a Superior Court jury found the
    defendant guilty of murder in the first degree in the April 26,
    2
    2003, shooting death of Paul Coombs on a New Bedford street.1
    The defendant appealed from his convictions and also filed in
    the Superior Court a motion for a required finding of not
    guilty, pursuant to Mass. R. Crim. P. 25(b)(2), as amended, 
    420 Mass. 1502
     (1995), or, in the alternative, for a new trial,
    pursuant to Mass. R. Crim. P. 30(a), as appearing in 
    435 Mass. 1501
     (2001).    The defendant's motion for a stay of appeal was
    allowed so that he could pursue his motion in the Superior
    Court.   After conducting an extensive evidentiary hearing, the
    motion judge, who had been the trial judge, denied both requests
    made in the motion.   The defendant's appeal from that denial was
    consolidated with his direct appeal.2
    The defendant argues, as he did in his motion for a new
    trial, that there was insufficient evidence to sustain his
    conviction.    He argues further that a new trial is required
    because the Commonwealth failed to make mandatory disclosures of
    exculpatory evidence; the judge abused her discretion in
    allowing the Commonwealth's motion to exclude evidence of a
    third-party culprit, and in denying the defendant's motion to
    1
    The defendant also was found guilty of unlawful possession
    of a firearm. G. L. c. 269, § 10 (b).
    2
    The defendant appeals also from the denial of his motion
    for admission of exhibits at the hearing on the motion for new
    trial, and the denial, in part, of his motion to expand the
    record at that hearing. We discern no abuse of discretion in
    the motion judge's evidentiary rulings on these motions.
    3
    exclude hearsay testimony; there was prosecutorial misconduct;
    and his counsel was ineffective.   The defendant also asks that
    we exercise our extraordinary power under G. L. c. 278, § 33E,
    to reduce the degree of guilt.
    We affirm the convictions and the denial of the motion for
    a new trial, and discern no reason to reduce the degree of guilt
    pursuant to G. L. c. 278, § 33E.
    Facts.    We summarize the facts the jury could have found,
    reserving certain facts for later discussion.
    On the evening of April 25, 2003, the defendant was at a
    private club on Mill Street in New Bedford, where he spent
    fifteen minutes loudly arguing on his cellular telephone with
    the victim.   Vernon Rudolph, a long-time friend of both the
    victim and the defendant, was also present at the club.    Through
    a window, Rudolph saw the victim "frisking" people on the
    sidewalk who were attempting to enter the club, and suggested
    that the defendant should go outside and engage in a fist fight
    with the victim, who was much larger than the defendant.    The
    defendant declined, and he did not leave the club until after
    the victim had left the area.
    The following morning, April 26, 2003, the victim told his
    girl friend that he wanted to "whoop" the defendant.   That
    afternoon, the defendant was again at the club.   He seemed upset
    and told the bartender that he was "tired of people [messing]
    4
    with him."   The defendant returned to the club that evening, but
    was now acting "tough" and saying that "[t]hings are going to
    change around here."    He left the club at some point after
    9:30 P.M., wearing a black hooded sweatshirt, black jeans, white
    and black sneakers, and batting gloves.    At approximately 9:50
    P.M. that evening, the victim and his girl friend were talking
    by telephone.    At the end of the call, the girl friend heard the
    victim shout, "Why don't you fight me now?"    At about the same
    time, sisters Ernestina and Beatriz Soares3 were driving on Cedar
    Street, approaching the intersection with Mill Street.
    Ernestina, the driver, waited at the intersection, where
    vehicles moving in their direction encountered a stop sign,
    because a blue Lincoln Mark VIII automobile was stopped on Mill
    Street and had the right of way.    The Mark VIII flashed its head
    lights, and Ernestina turned left onto Mill Street.      The windows
    of the Mark VIII were dark, and Ernestina could not see if there
    was anyone in the vehicle.
    As they drove down Mill Street, the sisters saw a man
    standing next to a Honda Accord automobile parked on the left
    side of the street, and another man standing on the opposite
    sidewalk.    They described the man on the sidewalk as
    approximately six feet tall, well built, and African-American.
    3
    Because Ernestina Soares and Beatriz Soares share a last
    name, we refer to them by their first names.
    5
    He was bald or had a receding hairline, and was wearing dark
    clothing, including a hooded sweatshirt.4     The man standing by
    the Honda was "yelling" across the street, "Don't [mess] with
    me.   I'm not the one to be [messed] with."    After driving past,
    Ernestina saw the man who had been standing on the sidewalk
    approach the Honda and raise his hand; the sisters then heard
    multiple gunshots.    While they proceeded further down Mill
    Street, Beatriz telephoned 911.
    Also at approximately 9:50 P.M. that evening, Michael
    Couture was driving on Cedar Street approaching the intersection
    with Mill Street.    Like the Soares sisters, he waited at the
    intersection because a stopped automobile on Mill Street had the
    right of way.   When a white automobile started to swerve around
    the stopped vehicle, Couture drove through the intersection.        He
    heard a loud noise to his left and saw a man fire multiple shots
    at a parked vehicle.    Couture described the man as an African
    American, between six feet and six feet two inches tall, with a
    slim to medium build.    The shooter was wearing dark clothes,
    including a mask, hat or hood.
    4
    Beatriz described the man as being African-American, about
    six feet tall, 220 or 230 pounds, well built, either bald or
    with a receding hairline, and dressed in dark clothing,
    including a hooded sweatshirt. Ernestina described the man as
    being a light-skinned African-American, possibly Spanish or Cape
    Verdean, between six feet and six feet two inches tall, 220 or
    240 pounds, well built, bald, and dressed in dark clothing,
    including a hooded sweatshirt.
    6
    At approximately the same time, Rudolph, who had left the
    club at about 9:40 P.M., was driving down Mill Street in his
    white Nissan Maxima automobile.    As he approached the
    intersection with Cedar Street, he encountered a blue Lincoln
    Mark VIII with tinted windows blocking his way.    He was swerving
    around the Mark VIII when he saw a man he recognized as the
    defendant standing in front of a parked vehicle on the other
    side of the intersection; the defendant was wearing the same
    clothing he had been wearing at the club.    Rudolph saw the
    defendant step back and fire seven to eight shots at the parked
    vehicle.   Rudolph, who had known the defendant from childhood,
    recognized the defendant's face when the defendant's hood
    slipped backwards as he fired.    Rudolph also recognized the
    defendant by his body actions and by the way that he
    "bounce[d]."   Rudolph drove to his mother's house and told her
    that he had just witnessed a shooting.    His mother testified at
    trial that Rudolph arrived at 10 P.M. that evening, and stated
    that he had recognized the shooter, but refused to disclose the
    shooter's identity.
    Officer Bryan Safioleas of the New Bedford police
    department was the first police officer to arrive at the scene
    of the shooting.   Safioleas had been parked approximately one-
    half block away from the intersection of Mill and Cedar Streets
    until 9:40 P.M., and had noticed a blue Lincoln Mark VIII with
    7
    tinted windows drive around the block a "couple" of times.      When
    Safioleas reached the Honda, the victim was unconscious and was
    bleeding from multiple gunshot wounds; he and another officer
    removed the victim from the Honda and attempted to administer
    CPR.       After emergency medical technicians arrived, the victim
    was transported by ambulance to a local hospital, where he was
    declared dead.
    Although police officers immediately identified the
    defendant as a suspect, they were unable to locate him for more
    than three months; the defendant's friends and acquaintances
    likewise did not see him after the shooting.      Officers were able
    to locate the blue Lincoln Mark VIII.      It had been wiped clean
    so that no fingerprints were identifiable either on the inside
    or outside of the vehicle.      Ultimately, police linked the
    defendant to the vehicle.5
    On August 5, 2003, State troopers arrested the defendant in
    Lynn, after troopers conducting surveillance of the area near a
    particular address saw the defendant entering a restaurant.
    When officers approached the defendant, he provided a false name
    and produced a driver's license in that name.      He was unable to
    5
    Police learned that the defendant had asked a friend to
    register the Lincoln Mark VIII in her name, but had paid for the
    costs of registering and insuring it; the friend never drove the
    Mark VIII. The victim's girl friend had seen the defendant in
    the Mark VIII, and the defendant's girl friend's landlord had
    taken a photograph of the Mark VIII parked in the defendant's
    girl friend's driveway.
    8
    state the date of birth on the license, however, and after
    admitting his real identity, was placed under arrest.    When a
    New Bedford police officer arrived to transport the defendant
    back to New Bedford, he noticed that the defendant was unshaven
    and sweating, was wearing a soiled T-shirt, and had lost weight.
    When the officer told the defendant that he looked "bad," the
    defendant responded that he was under a lot of stress.     During
    the drive to New Bedford, the defendant remarked that he was
    "enjoying the ride."   The officer noted that there was not much
    to see because it was dark and they were driving on a highway,
    to which the defendant replied that he still was enjoying the
    ride because it was "going to be the last ride he was going to
    have for a long time."
    The defendant did not testify.   He called one alibi
    witness, Joseph Correia, who testified that he was in the club
    with the defendant until about 10:45 P.M. on the evening of the
    shooting.
    The theory of defense focused on impeaching Rudolph's
    credibility.   Defense counsel elicited testimony that the
    weather on the night of the shooting was foggy and rainy, and
    that Rudolph was almost a block away from the Honda when the
    shots were fired.   Counsel also elicited testimony that Rudolph
    had not agreed to speak with police until after he learned that
    police were seeking to speak with him and his brother, and that
    9
    Rudolph and the prosecutor had entered into an agreement that
    resulted in Rudolph's early release from incarceration.
    Discussion.   The defendant raises a myriad of claims on
    appeal, all of which were considered and denied by the trial
    judge, in an exhaustive, detailed, and thoughtful eighty-page
    memorandum of decision, after an extensive, four-day hearing6 on
    the defendant's motion for a required finding under Mass. R.
    Crim. P. 25, or for a new trial under Mass. R. Crim. P. 30.
    The defendant's brief reiterates all of the evidentiary
    issues that were considered and rejected by the motion judge,
    who discredited several of the witnesses and found explicitly,
    contrary to the defendant's repeated assertions, that the
    prosecutor did not lie, there was no prosecutorial misconduct,
    and there was no conflict of interest between the prosecutor and
    the defendant's trial counsel.7   As to certain claims, the
    6
    Most of the Commonwealth's trial witnesses testified at
    the hearing. A number of witnesses who had not been part of the
    original trial either testified or submitted affidavits for the
    defense, and additional discovery, that the defendant had not
    received prior to trial, was admitted in evidence. The judge
    also considered additional documentary evidence and affidavits
    by witnesses who did not testify at the hearing, which she
    allowed to be introduced on the defendant's motion to reopen the
    evidence, more than five months after the hearing.
    7
    The only claim in his motion for a new trial which the
    defendant does not pursue on appeal concerns an assertion that
    he was denied the right to a public trial because the court room
    was closed during jury empanelment. As to that claim, the
    motion judge found that several of the witnesses were not
    credible; she noted particularly that she was very familiar with
    the right of public access during jury voir dire, and had been
    10
    defendant asserts facts, without comment, directly contrary to
    what the motion judge found.   For instance, the defendant states
    that his counsel's "complete failure" to impeach the
    Commonwealth's primary witness requires a new trial, whereas the
    judge found that defense counsel "thoroughly" impeached the
    principal witness, and strategically chose to focus the jury's
    attention on those areas, among the many possible grounds for
    impeachment, that he deemed the most effective.   In some of his
    other claims, the defendant's brief simply asserts, without
    explanation, that the motion judge's evidentiary and credibility
    rulings were clearly erroneous, and then reiterates the
    arguments made in his motion for a new trial.
    Having carefully reviewed all of the defendant's claims, we
    limit our discussion to those claims which rise to the level of
    appellate argument.   See Mass. R. A. P. 16 (a) (4), as amended,
    
    367 Mass. 921
     (1975).    See, e.g., Commonwealth v. Harbin, 
    435 Mass. 654
    , 661 (2002).   Because many of the issues raised
    involve credibility determinations which were before the motion
    judge, we note the deference we accord a motion judge's findings
    of fact, made after an evidentiary hearing, if supported by the
    record, Commonwealth v. Walker, 
    443 Mass. 213
    , 224 (2005), and
    the special deference given to the action of a motion judge who,
    "particularly vigilant in ensuring that accommodations were made
    for the public to attend all phases of the trial, including jury
    selection."
    11
    as here, was also the trial judge.    See Commonwealth v. Grace,
    
    397 Mass. 303
    , 307 (1997), citing Commonwealth v. De
    Christoforo, 
    360 Mass. 531
    , 543 (1971).
    1.    Sufficiency of the evidence.    In reviewing whether the
    evidence at trial was sufficient to support a conviction, we
    consider "whether the evidence, in its light most favorable to
    the Commonwealth, notwithstanding the contrary evidence
    presented by the defendant, is sufficient . . . to permit the
    jury to infer the existence of the essential elements of the
    crime charged" (quotation omitted).      Commonwealth v. Latimore,
    
    378 Mass. 671
    , 676-677 (1979).   "Additionally, the evidence and
    the inferences permitted to be drawn therefrom must be of
    sufficient force to bring minds of ordinary intelligence and
    sagacity to the persuasion of [guilt] beyond a reasonable doubt"
    (quotation and citation omitted).    
    Id. at 677
    .   "As long as the
    inferences are 'reasonable and possible,' the evidence may be
    wholly circumstantial."   Commonwealth v. Forte, 
    469 Mass. 469
    ,
    482 (2014), quoting Commonwealth v. Linton, 
    456 Mass. 534
    , 544
    (2010).
    The focus of the defendant's sufficiency argument is
    Rudolph's identification of him as the shooter.     The defendant
    contends that it would have been physically impossible for
    Rudolph to identify him, given that it was dark, foggy, and
    12
    rainy,8 and that Rudolph was almost a block away from a shooting
    that lasted only for a few seconds.    The defendant argues also
    that police coerced Rudolph's testimony by suggesting that he or
    his brother might be considered suspects if he did not testify
    against the defendant, and that the evidence at trial showed
    that Rudolph lied about the distance between the intersection
    and the parked Honda where the victim was shot.9   All of the
    defendant's arguments, however, concern the weight and
    credibility of Rudolph's testimony, which is the province of the
    jury.    See Commonwealth v. Fitzgerald, 
    376 Mass. 402
    , 411 (1978)
    ("Credibility is a question for the jury to decide; they may
    accept or reject, in whole or in part, the testimony presented
    to them").
    8
    Responding officers testified that, although there was
    some fog, the fog was "misty" rather than dense, it was more
    rainy than foggy, and they were able to see from the scene of
    the shooting to the private club on another block where the
    defendant and Rudolph had been earlier in the evening. This
    testimony is supported by photographs of the scene taken shortly
    after the shooting.
    9
    Rudolph testified that the Honda was in front of the fire
    hydrant near the NAACP building when the shooting took place
    (the "tail end of [the] car was just about at the fire
    hydrant"), and rolled slightly to the location where it was
    found (close to a later-established memorial, on the fence
    surrounding the NAACP building's parking lot) after the
    shooting. Other witnesses said that, at the time of the
    shooting, the vehicle was near the site of the memorial,
    approximately one hundred feet from the corner (Honda was "a
    short distance in front of the fire hydrant, maybe a little more
    up"; "right next to the NAACP building"; and "relatively close"
    to area of current memorial). When police arrived, the Honda
    was near the location of the current memorial.
    13
    A rational juror could have believed Rudolph's testimony
    that he saw the defendant shoot the victim.    Among other things,
    this was not a stranger identification.   Rudolph testified that
    he had known the defendant since childhood, they had grown up
    together, and he recognized the defendant's clothing and
    movements even before he saw the defendant's profile when his
    hood slipped.   The jury also took a view of the scene, standing
    at the northeast corner of Mill and Cedar Streets, and then
    walking a short way down Mill Street.   The prosecutor pointed
    out to them the location of the fire hydrant, the stop sign at
    the corner, the NAACP building that is the first building on the
    street, and the location of the next street.   The jury were able
    to decide for themselves what would have been visible from the
    corner, the distance to the fire hydrant, and the distance to
    the memorial on the fence surrounding the NAACP building,
    slightly farther along Mill Street than the fire hydrant.   The
    jury also were able to determine from the crime scene
    photographs the distance between the location where the green
    Honda was found and the fire hydrant.
    Moreover, and notwithstanding the defendant's statements to
    the contrary, although Rudolph was the Commonwealth's primary
    witness, his testimony was far from the only evidence tying the
    defendant to the shooting.   Three bystanders driving past near
    the time of the shooting provided descriptions of the shooter
    14
    and his clothing that were consistent with each other and with
    the defendant's physical characteristics and the clothing that
    Rudolph testified the defendant had been wearing.    Several
    witnesses, including the victim's girl friend, were aware that
    the victim and the defendant had been in an argument and that
    the defendant wanted to "fight" the victim.   The Mark VIII that
    the defendant had arranged to be registered in a friend's name,
    and which he drove, matched the description of the vehicle seen
    at the corner of Mill and Cedar Streets shortly before the
    shooting, and a Mark VIII, wiped clean of fingerprints and other
    possible evidence, was located by police early in the
    investigation.   See note 5, supra.
    In addition, a rational juror could have inferred that the
    defendant's actions after the shooting indicated consciousness
    of guilt.   The defendant fled from New Bedford to Lynn after the
    shooting, where he was living under a false name.    He offered a
    false name to police when they first apprehended him in Lynn,
    and made several seemingly inculpatory statements during the
    drive in a police cruiser from Lynn to New Bedford, among them
    that the drive was "going to be the last ride he was going to
    have for a long time."
    The evidence was sufficient to support the defendant's
    conviction.
    2.   Failure to disclose exculpatory evidence.    The
    15
    defendant argues that the Commonwealth failed to disclose a
    number of pieces of exculpatory evidence, contrary to the due
    process requirements of the Fourteenth Amendment to the United
    States Constitution, art. 12 of the Massachusetts Declaration of
    Rights, and Mass. R. Crim. P. 14, as appearing in 
    442 Mass. 1518
    (2004).    See Brady v. Maryland, 
    373 U.S. 83
    , 87 (1963).    See
    also Commonwealth v. Williams, 
    455 Mass. 706
    , 714 (2010).
    Evidence is exculpatory if it "provides some significant aid to
    the defendant's case, whether it furnishes corroboration of the
    defendant's story, calls into question a material, although not
    indispensable element of the prosecution's version of the
    events, or challenges the credibility of a key prosecution
    witness."   Commonwealth v. Daniels, 
    445 Mass. 392
    , 401-402
    (2005), quoting Commonwealth v. Ellison, 
    376 Mass. 1
    , 22 (1978).
    To obtain a new trial when exculpatory evidence has been
    withheld, a defendant "must establish prejudice."    Commonwealth
    v. Murray, 
    461 Mass. 10
    , 20-21 (2011).   Where a defendant
    requested specific exculpatory evidence prior to trial, the
    defendant must demonstrate only the existence of a substantial
    basis for claiming prejudice.    Commonwealth v. Daniels, supra at
    404-405.    Where, on the other hand, a defendant's pretrial
    motion was merely a general request for exculpatory evidence,
    the defendant must show that the withheld evidence "would
    probably have been a real factor in the jury's deliberations."
    16
    See Commonwealth v. Murray, supra at 21, quoting Commonwealth v.
    DiBenedetto, 
    458 Mass. 657
    , 664 (2011).
    a.   Crime scene diagram.     The defendant argues that the
    Commonwealth failed to produce a hand-drawn crime scene diagram
    detailing the distance between the Honda Accord and shell
    casings found near the vehicle.     The diagram shows the Honda as
    having been located part-way down the block from the
    intersection of Mill and Cedar Streets.    The defendant contends,
    as he did in his motion for a new trial, that he could have used
    this diagram to impeach Rudolph's testimony that the shooting
    occurred near the intersection.    The motion judge treated this
    diagram as having been specifically requested by the defendant
    prior to trial, but concluded that the defendant had no
    substantial basis for claiming prejudice resulting from the
    Commonwealth's failure to disclose.    We agree.
    The hand-drawn diagram is not to scale.     It was drawn by a
    crime scene investigator primarily to record the distance of
    each shell casing from the Honda.    More importantly, the
    defendant has not shown that it would have been exculpatory.
    See Commonwealth v. Bresilla, 
    470 Mass. 422
    , 431 (2015), citing
    Commonwealth v. Williams, supra at 714.     Safioleas, the first
    responding officer, testified at trial concerning the location
    of the Honda when he arrived at the scene, and his testimony
    corresponded generally to the location of the vehicle shown on
    17
    the diagram.   The defendant also was able to impeach Rudolph's
    testimony regarding the location of the shooting with
    contradictory testimony from Beatriz and Couture.    The diagram
    would have served only as weak and cumulative impeachment
    evidence.   See Commonwealth v. Vieira, 
    401 Mass. 828
    , 838
    (1988).
    b.    Nature of Rudolph's incentive agreement.   The defendant
    contends that the Commonwealth concealed the true nature of the
    agreement between Rudolph and the prosecutor by not informing
    the defendant that (1) Rudolph would be released on the day that
    he testified; (2) Rudolph had asked for favorable treatment at
    his dangerousness hearing following his December, 2003, arrest
    (subsequent to his initial statements to police); (3) Rudolph's
    former girl friend had telephoned the prosecutor asking for
    preferential treatment concerning her own pending felony drug
    charges; and (4) Rudolph purportedly received $5,000 from the
    New Bedford Chamber of Commerce following his testimony.     As the
    defendant argues, evidence of any understanding or agreement
    between the government and a key witness may be used to impeach
    that witness and is exculpatory.   Commonwealth v. Fisher, 
    433 Mass. 340
    , 358 (2001).
    The motion judge found after hearing evidence on this issue
    that the Commonwealth did not conceal the nature of its
    agreement with Rudolph from the defendant, and the record amply
    18
    supports this finding.   The prosecutor agreed to support
    Rudolph's request for early release, knowing that it would
    result in Rudolph's release from incarceration immediately after
    he testified, and knowing that Rudolph had an engineer who was
    prepared to testify that the school zone conviction against
    Rudolph could not stand because the location of his drug
    transaction was not within 1,000 feet of a school or park.    The
    prosecutor sent a copy of this agreement to the defendant prior
    to the start of trial.   Thus, there was no basis upon which the
    defendant legitimately could claim surprise or failure to
    disclose when Rudolph was released on the day that he testified.
    There is likewise no merit in the defendant's remaining
    claims concerning the incentive agreement.   The defendant
    suffered no prejudice by not learning that Rudolph had asked for
    favorable treatment at his dangerousness hearing.   Rudolph did
    not receive favorable treatment at the hearing, and the
    agreement that Rudolph eventually reached with the prosecutor,
    provided to the defendant, clearly informed the defendant that
    Rudolph had been seeking an incentive in return for his
    testimony.   The record does not support any favorable treatment
    of Rudolph's girl friend in her felony drug case, and the motion
    judge found that there was no indication that the Commonwealth
    gave preferential treatment to her, or that Rudolph requested
    such treatment.   The motion judge also found that there was no
    19
    evidence or suggestion that the New Bedford Chamber of Commerce
    paid Rudolph $5,000, or any other amount, in return for his
    testimony.   See Commonwealth v. Miranda, 
    458 Mass. 100
    , 105
    (2010), cert. denied, 
    132 S. Ct. 548
     (2011).
    c.   Police report on accidental shooting.   The defendant
    asserts that the Commonwealth failed to provide the defendant
    with a police report detailing an incident in October, 2003, in
    which Rudolph accidentally shot himself in the finger.    No
    charges were filed against Rudolph as a result of the incident.
    The motion judge found that, "while the evidence is far from
    conclusive," the Commonwealth most likely failed to provide the
    defendant with this report.   The defendant argues that Rudolph
    avoided any charges because he told police that he was the key
    witness in the Commonwealth's case against the defendant.      The
    judge found, however, that there was no evidence that
    investigating officers were aware that Rudolph was a
    Commonwealth witness, no evidence that he either sought or
    received favorable treatment in that matter, and that his
    anticipated testimony had no bearing on the decision not to
    prosecute Rudolph for "shooting himself."   The record supports
    the judge's findings.   The defendant therefore suffered no
    prejudice as a result of the Commonwealth's failure to disclose
    this police report.
    3.   Exclusion of third-party culprit evidence.     The
    20
    defendant argues that the judge abused her discretion in
    allowing the Commonwealth's motion to exclude third-party
    culprit evidence.   Relatedly, he argues that the Commonwealth
    failed to disclose certain notes taken by one of the officers
    during Rudolph's first police interview, and that these notes
    would have bolstered his opposition to the Commonwealth's motion
    in limine to exclude.
    "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. Morgan, 
    460 Mass. 277
    , 291 (2011), quoting Commonwealth v. Lawrence, 
    404 Mass. 378
    , 387 (1989), and "[i]f the evidence is of 'substantial
    probative value, and will not tend to prejudice or confuse, all
    doubt should be resolved in favor of admissibility.'"
    Commonwealth v. Morgan, supra at 291, quoting Commonwealth v.
    Conkey, 
    443 Mass. 60
    , 66 (2004), S.C., 
    452 Mass. 1022
     (2008).
    See Commonwealth v. Silva-Santiago, 
    453 Mass. 782
    , 801 (2009),
    and cases cited.
    The introduction of such evidence, however, is not without
    limit.   The proffered evidence must have "a rational tendency to
    prove the issue the defense raises, and the evidence cannot be
    too remote or speculative" (quotation omitted).   Commonwealth v.
    Smith, 
    461 Mass. 435
    , 445-446 (2012).   In addition, because the
    evidence is "offered for the truth of the matter asserted,"
    21
    e.g., "that a third party is the true culprit," where third-
    party culprit evidence is hearsay that does not fall within a
    hearsay exception, it is admissible, in the judge's discretion,
    only if it is otherwise relevant and will not tend to prejudice
    or confuse the jury, and if there are "other substantial
    connecting links" between the proffered third-party culprit and
    the crime.   Commonwealth v. Smith, supra.
    Here, the defendant sought to introduce evidence that the
    victim had been convicted of manslaughter for the death of
    Zachary Suoto, and therefore that Barry Suoto,10 Zachary's
    brother, had a motive to kill the victim on Zachary's birthday,
    April 26.    The defendant argues that the judge abused her
    discretion in granting the Commonwealth's motion to exclude this
    evidence.    He maintains that if he had had access to the notes
    of Rudolph's first interview with the police, he would have been
    successful in arguing against the Commonwealth's motion to
    exclude.
    While another person's motive to commit the crime properly
    may be considered in determining whether third-party culprit
    evidence is admissible, it is far from the "sole factor."
    Commonwealth v. Morgan, 460 Mass. at 292.    The defendant offered
    nothing in his opposition, nor does he offer anything on appeal,
    10
    Because Zachary Suoto and Barry Suoto share a last name,
    we refer to them by their first names.
    22
    to indicate that Barry, who had been released from incarceration
    more than a year before the victim's death, had a then-present
    intent to kill the victim, or was even present in the same city
    at the time of the shooting.    The defendant also did not proffer
    any witnesses, affidavits, or other evidence that might have
    connected Barry to the killing.   See Commonwealth v. O'Brien,
    
    432 Mass. 578
    , 589 (2000).   There was no abuse of discretion in
    the judge's conclusion that, in the absence of any such
    evidence, the admission of evidence that Barry might have had a
    motive to kill the victim on the date that the victim died was
    overly speculative and of little probative value, and would tend
    to prejudice and confuse the jury.
    The notes of the police interview would have added little
    to suggest the judge should have reached a different conclusion
    and, to the contrary, tended to support her decision to exclude
    the proffered motive.   The notes state that Rudolph had spoken
    with Barry a few weeks prior to the shooting, and that Barry had
    told Rudolph that "it was behind him."   Barry also told Rudolph
    that he was afraid of the victim, and that "he did not hire a
    hitman."   The judge determined that the notes were not
    exculpatory because they did not support the defendant's theory
    that Barry killed the victim.   Rather, they supported the
    opposite inference.   We conclude that there was no substantial
    basis to support the defendant's claim of prejudice due to the
    23
    Commonwealth's failure to provide him with these notes.     The
    notes would not have changed the judge's decision to allow the
    Commonwealth's motion to exclude the proposed third-party
    culprit evidence, where there were no substantial connections
    linking Barry to the crime.   See Commonwealth v. Smith, 461
    Mass. at 445-446.
    4.    Conflict of interest.   The defendant argues that a new
    trial is required because the prosecutor had represented him on
    several previous occasions.   The defendant made the same
    argument in his motion for a new trial, in which the judge
    found, after hearing testimony from the prosecutor and examining
    records of the defendant's prior cases, that there was no
    conflict.
    A defendant who demonstrates an actual conflict of interest
    is entitled to a new trial, under both Federal and State
    Constitutions, unless he or she knowingly and voluntarily waived
    the conflict.   See Commonwealth v. Holliday, 
    450 Mass. 794
    , 806,
    cert. denied, 
    555 U.S. 947
     (2008).   An actual conflict of
    interest arises if a prosecutor has formerly represented a
    defendant in a matter that is substantially related to the
    pending case.   See Mass. R. Prof. C. 1.9(a), 
    426 Mass. 1342
    (1998).   If a defendant establishes only a potential or tenuous
    conflict of interest, however, the conviction will not be set
    aside unless the defendant demonstrates that the conflict
    24
    resulted in actual prejudice.    See Commonwealth v. Holliday,
    supra.
    The prosecutor represented the defendant as a public
    defender in a 1986 probation surrender matter, a 1988 robbery
    charge, and a 1989 charge of receiving stolen property and
    possession of controlled substances.    None of these cases, each
    of which ended many years before the current matter, is
    substantially related to the murder case.    Contrary to the
    defendant's argument, the fact that the stolen property matter
    involved a nine millimeter handgun, the same caliber that was
    used to kill the victim, does not make that case, more than
    twenty years before the shooting, substantially related to the
    current case, nor does it show that the prosecutor was exposed
    to confidential information.    Indeed, the judge found that the
    prosecutor's representation of the defendant had been "distant
    and fleeting . . . on substantially unrelated matters" and that
    he "acquired no facts upon which the prosecution of the
    defendant was predicated."    Moreover, the record does not
    indicate that the defendant ever informed his trial counsel,
    either before or during trial, of a potential conflict of
    interest by the prosecutor.    Nor did the defendant seek to have
    the prosecutor disqualified on the ground of a potential
    conflict.   In the absence of an actual conflict of interest, the
    defendant must establish that the conflict resulted in actual
    25
    prejudice.   See id.   The defendant has not done so.11
    5.   Prosecutorial misconduct.    The defendant raises
    numerous claims regarding the prosecutor's purportedly improper
    statements and arguments at trial, as well as the prosecutor's
    conduct outside the court room.    We address the following three
    claims, and discern no reason to address the remainder of the
    claims, which were considered and rejected by the motion judge.
    First, the defendant argues that the prosecutor knowingly
    presented false testimony to the jury regarding the location of
    the Honda at the time of the shooting.    See Commonwealth v.
    Jewett, 
    442 Mass. 356
    , 362-363 (2004).    The defendant did not
    object to this testimony at trial, and his claim is unavailing.
    The basis of the claim rests on the fact that there was somewhat
    differing trial testimony regarding the location of the Honda at
    the time of the shooting.    Rudolph testified that the vehicle
    was close to the fire hydrant located near the intersection,
    while Beatriz stated that the Honda was a "little bit more up"
    than a short distance in front of the hydrant.    That Rudolph's
    testimony was to some extent contradicted does not establish
    that it was false, or that the prosecutor knowingly and
    11
    Although we conclude that there was no actual conflict of
    interest in these circumstances, and no potential conflict
    resulting in any actual prejudice, we emphasize that the better
    practice for the prosecutor would have been to avoid the risk of
    reversal of a conviction, following a later determination that
    there was a conflict of interest, by simply choosing not to
    prosecute a former client.
    26
    intentionally suborned false testimony, as the defendant
    contends.
    Nor was the testimony about the location of the Honda
    significantly contradictory; Beatriz's testimony that the
    vehicle was a little farther up than the hydrant did not
    establish that Rudolph would have been unable to see the
    vehicle, and both he and a responding officer testified that
    they were able to see farther up the street, past the NAACP
    building and its parking lot beyond the fire hydrant.
    Second, the defendant argues that the prosecutor committed
    "fraud on the court" by, inter alia, supporting the incentive
    agreement with Rudolph that had the effect of releasing him from
    incarceration immediately following his testimony.   This claim
    is without merit.   See Rockdale Mgt. Co. v. Shawmut Bank, N.A.,
    
    418 Mass. 596
    , 598 (1994), quoting Hazel-Atlas Glass Co. v.
    Hartford-Empire Co., 
    322 U.S. 238
    , 246 (1944).   A prosecutor
    does not commit "fraud on the court" by facilitating the
    government's entry into a plea agreement with a key witness,
    properly disclosed to the defendant, and permissibly may argue
    that the witness's testimony is truthful, so long as he does not
    express a personal belief in the witness's credibility.    See
    Commonwealth v. Caldwell, 
    459 Mass. 271
    , 280-281 (2011), and
    27
    cases cited.12
    Third, the defendant argues that the prosecutor disregarded
    a pretrial order that precluded the Commonwealth from
    introducing evidence of an alleged threat to Rudolph as
    substantive evidence of the defendant's consciousness of guilt.
    In explaining in his closing argument why he had supported
    Rudolph's release from prison, the prosecutor stated:    "Folks,
    what do you think Mr. Rudolph's life would be worth in prison
    after testifying?"    Defense counsel objected, and the judge
    ordered the comment struck, instructing the jury to disregard
    the statement.    "We presume that the jury followed the judge's
    instruction."    Commonwealth v. Pillai, 
    445 Mass. 175
    , 190
    (2005).   Beyond the single passing comment in closing, the
    prosecutor made no mention of the threats against Rudolph's life
    that had been made by, among others, the defendant's brother,
    and that Rudolph had testified to in earlier proceedings.
    6.   Introduction of hearsay statements by victim's girl
    friend.   The defendant argues that the judge erred in denying
    his motion in limine to exclude testimony from the victim's girl
    12
    The defendant continues to argue on appeal that the
    prosecutor "knew" that Rudolph committed his drug offense within
    a school zone, and should not have agreed to an early release on
    that charge, notwithstanding the judge's finding that the
    prosecutor was aware that Rudolph had an engineer who intended
    to testify that Rudolph's drug offense had taken place close to,
    but outside, the 1,000-foot school zone. The defendant has not
    established by this argument that the prosecutor committed fraud
    on the court.
    28
    friend that, when she was speaking with him by telephone at
    approximately 9:50 P.M. on the evening of the shooting, she
    heard him say, "Why don't you fight me now?"   The motion was
    considered at a hearing prior to opening statements but after
    the jury had been empanelled, and then again immediately before
    the girl friend testified, at which the parties and the judge
    reviewed and discussed each challenged statement.   Trial counsel
    did not object as the statements were considered, and did not
    seek an ongoing objection at the end of the hearing, nor did he
    object when the statement was introduced.
    "The broad rule on hearsay evidence interdicts the
    admission of a statement made out of court which is offered to
    prove the truth of what it asserted, [but] the state of mind or
    intent of a person, whenever material, may be shown by his
    declarations out of court" (quotations omitted).    Commonwealth
    v. Qualls, 
    425 Mass. 163
    , 167 (1997), S.C., 
    440 Mass. 576
    (2003).   See Mass. G. Evid. § 803(3)(B)(i) (2015) ("Statements
    of a person as to his or her present friendliness, hostility,
    intent, knowledge, or other mental condition are admissible to
    prove such mental condition").   "The state-of-mind exception to
    the hearsay rule calls for admission of evidence of a murder
    victim's state of mind as proof of the defendant's motive to
    kill the victim when and only when there also is evidence that
    the defendant was aware of that state of mind at the time of the
    29
    crime and would be likely to respond to it."      Commonwealth v.
    Qualls, supra.
    Here, there was evidence that the defendant was aware that
    the victim wanted to engage in a fight with him.     On the evening
    before the shooting, Rudolph and the defendant saw the victim
    waiting outside the entrance to the club, and Rudolph suggested
    that the defendant should go outside and fight the victim
    without weapons.     There was also evidence that the defendant
    responded to the possibility of a fight with the victim by
    killing him.     The Soares sisters testified that, immediately
    before the victim was shot, he had been yelling at a man across
    the street, and Rudolph testified that the defendant was that
    man.    There was no error in the judge's decision to allow this
    statement to be introduced to establish the defendant's motive
    to kill the victim.
    7.   Ineffective assistance of counsel.   The defendant
    argues that his trial counsel's performance was constitutionally
    deficient in numerous respects.     He asserts that counsel was
    ineffective for, among other things, inadequate efforts to
    impeach Rudolph, failure to develop evidence of the crime scene,
    and failure to interview and call additional alibi witnesses.13
    13
    The defendant also argues that he was denied the
    effective assistance of counsel because his trial counsel
    previously had represented Rudolph, and had a conflict of
    interest. This claim is unavailing. The defendant's trial
    30
    When addressing ineffective assistance of counsel claims, we
    "consider whether there was an error in the course of trial, and
    if so, whether such error was likely to have influenced the
    jury's conclusion."   Commonwealth v. Freeman, 
    442 Mass. 779
    , 791
    (2004).   "A strategic decision by an attorney . . . constitutes
    error 'only if it was manifestly unreasonable when made.'"
    Commonwealth v. Jenkins, 
    458 Mass. 791
    , 804-805 (2011), quoting
    Commonwealth v. Coonan, 
    428 Mass. 823
    , 827 (1999).      In
    considering ineffective assistance claims in a case of murder in
    the first degree, we review under the standard of a substantial
    likelihood of a miscarriage of justice, "as it is more favorable
    to the defendant."    Commonwealth v. Freeman, supra.    We conclude
    that none of the asserted failures shows any inadequacy in trial
    counsel's performance.
    a.    Impeachment of Rudolph.   We apply "a stringent standard
    of review to claims of ineffective assistance because of failure
    to impeach a witness."   Commonwealth v. Jenkins, 
    supra at 805
    .
    The defendant claims that trial counsel failed to impeach
    Rudolph with his prior convictions.   "[F]ailure to introduce the
    counsel represented Rudolph in 1988, in a case involving the
    malicious destruction of property. Rudolph received probation
    in that case; his term of probation ended in 1993. The motion
    judge found after an evidentiary hearing that counsel had no
    memory of having represented Rudolph, and the two cases, more
    than ten years apart, were not related. Furthermore, the judge
    found that the defendant's trial counsel "conducted a vigorous
    cross-examination of Rudolph," which was not impacted by his
    prior representation.
    31
    criminal record of a witness for impeachment purposes generally
    does not constitute ineffective assistance of counsel."
    Commonwealth v. Martinez, 
    437 Mass. 84
    , 93 (2002).     Here,
    counsel testified at the hearing on the motion for a new trial
    that he made a strategic decision to focus on other methods of
    impeachment.     His decision to do so was not manifestly
    unreasonable.     Indeed, the motion judge found that counsel's
    cross-examination of Rudolph had been "vigorous" and effective.
    The defendant claims also that trial counsel failed to
    impeach Rudolph with his recantations, prior to trial, of his
    identification of the defendant.     In response to a motion in
    limine, however, the judge had ruled that if counsel impeached
    Rudolph with his recantations, Rudolph would be permitted to
    testify that the recantations were as a result of threats that
    he had received, including from the defendant's brother.       See
    part 5, supra.    Counsel's strategic decision to avoid this line
    of impeachment was not manifestly unreasonable.
    The defendant argues that counsel should have impeached
    Rudolph with evidence that he was a heavy drug user in 2003.
    There was, however, no evidence that Rudolph had been using
    drugs on the night of the shooting.    Counsel's decision to forgo
    this line of impeachment for other, more powerful grounds of
    impeachment was not manifestly unreasonable.     Contrast
    Commonwealth v. Sena, 
    429 Mass. 590
    , 595 (1999), S.C., 
    441 Mass. 32
    822 (2004).
    b.   Introduction of crime scene evidence.    The defendant
    claims that counsel was ineffective for failing to introduce
    evidence that would have proved conclusively that the shooting
    took place farther away from the intersection than where Rudolph
    testified it occurred.   Specifically, the defendant contends
    that trial counsel should have introduced photographs showing
    where the responding officers parked when they arrived at the
    scene, and should have argued that the location where the shell
    casings landed proves that the Honda was parked farther down the
    street from the intersection when the shooting occurred.
    Throughout the trial, however, counsel effectively elicited
    testimony that the shooting occurred farther down the street,
    and not directly at the intersection.    In his closing argument,
    counsel also emphasized that Rudolph's testimony concerning the
    location of the shooting differed from the testimony of the
    other witnesses.   Counsel was not constitutionally ineffective
    for failing to introduce cumulative evidence concerning the
    location of the Honda that would have added little to support
    the defendant's vigorous attack on Rudolph's credibility as to
    the location of the vehicle at the time of the shooting.
    c.   Additional alibi witnesses.    The defendant argues that
    counsel was ineffective because he should have called additional
    alibi witnesses.   To establish ineffective assistance of counsel
    33
    based on a failure to call additional witnesses, a defendant
    "must show that the purported testimony would have been relevant
    or helpful."   Commonwealth v. Ortega, 
    441 Mass. 170
    , 178 (2004).
    The defendant has not done so.    Prior to trial, his investigator
    interviewed five potential alibi witnesses.     Four did not have
    memories that would have been helpful, and the fifth was called
    to testify.    In his motion for a new trial, the defendant
    submitted an affidavit from a potential alibi witness that
    stated that the witness ran into the club following the shooting
    and saw the defendant watching basketball on television.      During
    the hearing on the motion for a new trial, however, that
    potential witness contradicted the statements in his affidavit.
    The defendant also challenges numerous "other defense
    counsel failings."    As did the motion judge, we conclude that
    trial counsel's conduct did not result in a substantial
    likelihood of a miscarriage of justice.
    Relief under G. L. c. 278, § 33E.      Having reviewed the
    entire record pursuant to our duty under G. L. c. 278, § 33E, we
    discern no reason to exercise our extraordinary power to reduce
    the degree of guilt or to grant a new trial.
    Conclusion.     The judgments of conviction on the
    indictments charging murder in the first degree and unlawful
    possession of a firearm are affirmed.     The order denying the
    motion for a required finding of not guilty or, in the
    34
    alternative, for a new trial is also affirmed.
    So ordered.