Commonwealth v. Caruso , 476 Mass. 275 ( 2017 )


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    SJC-09656
    COMMONWEALTH   vs.   STEVEN CARUSO.
    Middlesex.       September 9, 2016. - January 13, 2017.
    Present:    Gants, C.J., Botsford, Gaziano, Lowy, & Budd, JJ.
    Homicide. Constitutional Law, Confrontation of witnesses,
    Assistance of counsel. Evidence, Expert opinion,
    Information stored on computer, Of agency, Prior consistent
    statement, Testimony at prior proceeding, Videotape,
    Impeachment of credibility. Agency, What constitutes.
    Witness, Expert, Impeachment. Practice, Criminal, Capital
    case, Confrontation of witnesses, Assistance of counsel.
    Indictment found and returned in the Superior Court
    Department on March 23, 2000.
    A pretrial motion to suppress evidence was heard by Charles
    M. Grabau, J., and the case was tried before him.
    David A.F. Lewis for the defendant.
    Jessica Langsam, Assistant District Attorney (Elizabeth
    Dunigan, Assistant District Attorney, also present) for the
    Commonwealth.
    LOWY, J.    On January 20, 2000, Sandra Berfield, the victim,
    received a package containing a pipe bomb, which exploded when
    she opened it, blowing her body asunder and killing her
    2
    instantly.   A jury in the Superior Court found the defendant,
    Steven Caruso, guilty of murder in the first degree on theories
    of deliberate premeditation and extreme atrocity and cruelty.
    The defendant appeals from his conviction, claiming that
    (1) the admission of testimony by a jailhouse informant violated
    the defendant's confrontation rights; (2) a ballistics expert
    improperly testified to a report prepared by an unavailable
    expert; (3) the testimony of the Commonwealth's wire expert
    should have been excluded; (4) the Commonwealth failed to
    establish adequately the reliability of computer forensics
    evidence; and (5) the admission of the victim's prior recorded
    testimony and limitations on the defendant's ability to attack
    its veracity violated the defendant's confrontation rights.       We
    conclude that no reversible error occurred, and we affirm the
    jury's verdict.
    Background.    We recite the facts the jury could have
    reasonably found in the light most favorable to the
    Commonwealth, reserving certain details for our analysis of the
    issues.
    1.    Defendant's relationship with victim.   The defendant
    was a long-time regular customer at a restaurant in Medford
    where the victim worked as a server.   The defendant often
    patronized the restaurant more than once daily, and typically
    requested a particular server.   When the defendant became angry
    3
    after a long wait for his previously preferred server, the
    victim became the defendant's server of choice.     The defendant
    and the victim established an amicable relationship.
    The defendant was closely connected with many events taking
    place at the restaurant and with many of the people who worked
    there.    The defendant, a handyman by trade, did repair work at
    the restaurant and in the homes of its employees.     He also
    attended some social events organized for employees of the
    restaurant.
    Eventually, the relationship between the defendant and the
    victim took a negative turn.    The defendant asked the victim on
    a date.     The victim declined, and the defendant's demeanor
    changed.    Although the defendant had a reputation among the
    restaurant's staff for staring at people, he began to stare
    exclusively at the victim and in a hateful manner.
    Tension between the defendant and the victim escalated.         On
    two occasions, the defendant poured battery acid into the
    gasoline tank of the victim's motor vehicle, for which the
    defendant was convicted of destroying the victim's property.       He
    was sentenced to eighteen months in the house of correction,
    with six months to serve and the balance suspended for two
    years.    He also was ordered to make monthly restitution
    payments.    A payment was due in January, 2000.   The defendant
    4
    also was charged with, but not convicted of, slashing the
    victim's tires.
    In addition, the victim had obtained a restraining order
    against the defendant after the first battery acid incident.
    After the second battery acid incident, the victim returned to
    court regarding the restraining order violation.       At the end of
    the ensuing proceeding, the judge told the defendant the
    restraining order was still in full effect.      Nevertheless,
    immediately after the hearing, the defendant approached the
    victim, coming within about two feet of her in a nearby parking
    lot.       A few months later, the defendant drove by the restaurant
    again.
    2.    Victim's death.   On the morning of Thursday, January
    20, 2000, at approximately 12:30 P.M., the victim was instantly
    killed in her apartment when she opened a package containing a
    pipe bomb.      The victim lived on the second level of an owner-
    occupied home in Everett.
    The defendant left the package containing the pipe bomb on
    the victim's porch just after 9:30 A.M.1      At around 12:30 P.M.,
    1
    The defendant rejects the timeline of events presented by
    the Commonwealth and argues that he could not have delivered the
    package. However, in determining what facts a reasonable juror
    could have found, we view the facts in the light most favorable
    to the Commonwealth. Commonwealth v. Latimore, 
    378 Mass. 671
    ,
    676-677 (1979). The Commonwealth established that the defendant
    could have delivered the package shortly after 9:30 A.M. before
    5
    the homeowner retrieved the mail and, on her way back into her
    apartment, examined the package containing the bomb.     She saw
    the name "Passanisi" with a Malden return address.     Her husband
    heard the victim go down to the basement and then return to her
    apartment.   Shortly thereafter, they felt the explosion.
    The homeowner and her husband responded with alacrity.
    They went to the second-floor apartment and opened the door.
    They saw smoke, smelled an odor, and saw the victim's body on
    the floor.   They telephoned 911.
    Police arrived at the scene promptly.      A responding officer
    identified the odor as similar to gunpowder.     From the doorway
    to the apartment, the officer saw human tissue and blood spatter
    on the wall, floors, and ceiling.    He called to the victim,
    whose body he saw at the end of a hallway.     There was no
    response.    The cause of death was later determined to be massive
    blast injuries.
    Based on the defendant's troubled history with the victim,
    the police promptly sought to question him that same day.       The
    defendant provided police with two inconsistent descriptions of
    his whereabouts on earlier that morning.    First, he told the
    police he had gone from his home to a library around 10 A.M.,
    he was identified by a witness at a café, approximately ten
    minutes away from the victim's home, at 10 A.M.
    6
    then to a café.   Later, he told the police that he had gone to
    the café first, followed by the library.
    Later that same evening, the police returned to the
    defendant's home to secure it, pending the issuance of a
    warrant, which was subsequently executed.     Again, the defendant
    voluntarily answered the questions policed asked.    He knew that
    the police were there "about that girl that got blown up in
    Everett," who had "caused [the defendant] a lot of problems."
    He also stated that he did not like the victim anymore.     When
    asked what he thought should happen to a person who committed
    such a crime, the defendant responded, "Well, you don't know all
    the facts."
    3.   Search of crime scene and defendant's home.     From the
    crime scene, police recovered, among other things, battery
    parts, pieces of pipe, metal fragments with human tissue or
    blood on them, pieces of copper, and wires.    After the police
    conducted their search, a private company cleaned the premises
    and delivered additional items in bags to the fire marshal.
    In executing the warrant at the defendant's home, the
    police discovered a number of items that were introduced as
    evidence at trial.   The police found drill bits, an electronics
    wiring tool kit, batteries, copper wire, pieces of pipe, and
    ammunition.   The wire, pipe fragments, batteries, and gunpowder
    7
    obtained at the defendant's home were consistent with similar
    materials found at the scene of the explosion.
    In the defendant's bedroom, police recovered various
    documents containing detailed information about the victim, her
    family and past boy friends, including documents with the
    victim's date of birth, Social Security number, home address and
    place of employment.    Police also recovered correspondence
    between a former boy friend and the victim, and a document
    containing a postal service code referring to the mail route to
    the victim's home.   Shortly after the search, the defendant's
    sister informed police that she had discovered a booklet
    entitled, "High-Low Boom Explosives," in the defendant's room.
    During a forensic investigation of the defendant's
    computer, police discovered information related to the victim
    and her family that had been accessed by the defendant in the
    days leading up to her death, including that the defendant had
    used an astrology program and a family tree program containing
    the victim's personal information, such as her telephone number
    and former addresses.    Through the family tree program, the
    police accessed a mailing label containing the name "Sebastiano
    Passanisi," the victim's brother-in-law, with a Malden address,
    consistent with the return address on the package containing the
    bomb.   Neither the victim's sister nor her brother-in-law had
    8
    lived in Malden for approximately thirty years.     Police found no
    information related to any other family in the program.
    Discussion.   1.    Testimony of jailhouse informant.
    Following his arrest, the defendant encountered Michael A.
    Dubis, another prisoner, in a holding cell at a hospital.2      Dubis
    recognized the defendant's name and face from the newspaper and
    asked him questions about the victim's death.     For approximately
    ninety minutes, Dubis talked to the defendant, intending to find
    out what had happened.    Dubis sought to win the defendant's
    trust and asked questions to elicit information he could pass on
    to law enforcement.
    The defendant made numerous incriminating statements to
    Dubis.   The defendant told Dubis that he had learned about
    making bombs from a friend, that he had used batteries and a
    pipe, and that the package would only explode when it was opened
    due to a "basic separation device."    The defendant also said
    that he "got [the bomb] there," that he used the return address
    of the victim's sister on the package, and that he knew the bomb
    would kill anyone who opened it.    In addition, the defendant
    described his relationship with the victim, including the
    incidents involving damage to the victim's vehicle and that the
    2
    Again, disregarding testimony put forth by the
    Commonwealth's witnesses, the defendant argues that he and Dubis
    never met and that the conversation never occurred. The jury
    were entitled to credit the testimony that the meeting took
    place. See 
    Latimore, 378 Mass. at 676-677
    .
    9
    victim had a video recording of him "messing with" her vehicle.
    The defendant said that the victim would not go out with him and
    that he was mad at her and called the victim a "bitch."
    Dubis relayed this information to a State trooper, Sergeant
    James Plath, to whom Dubis had previously provided information.
    Plath informed law enforcement officials involved in the
    defendant's case.   Following a motion to suppress, which was
    denied, Dubis testified to the defendant's statements at trial.
    The defendant argues that the motion judge, who also was
    the trial judge, erred in denying the motion to suppress his
    statements to Dubis, and therefore Dubis's testimony was
    improperly admitted at trial; the defendant also argues that the
    judge erred at trial by allowing the Commonwealth to use prior
    consistent statements to rehabilitate Dubis after cross-
    examination.   We reject each argument.
    a.   Motion to suppress informant's testimony.   In his
    pretrial motion to suppress Dubis's testimony, the defendant
    argued that Dubis was a government agent who questioned the
    defendant in violation of his right to counsel -- which had
    attached at his arraignment -- in violation of the Sixth
    Amendment to the United States Constitution and art. 12 of the
    Massachusetts Declaration of Rights.
    "The court accepts the findings of fact from a suppression
    hearing absent clear error," but independently applies
    10
    constitutional principles to determine whether an informant was
    a government agent.   Commonwealth v. Murphy, 
    448 Mass. 452
    , 459
    (2007), citing Commonwealth v. Harmon, 
    410 Mass. 425
    , 429
    (1991).   We conclude that the judge properly denied the motion
    to suppress because Dubis was not the Commonwealth's agent when
    he spoke to the defendant.   See Commonwealth v. Tevlin, 
    433 Mass. 305
    , 320 (2001); Harmon, supra at 428-429.
    In a written decision, the judge made the following
    findings related to Dubis's previous involvement as a government
    informant.   Dubis first acted as a government informant in 1988,
    while serving a sentence in a house of correction.   He also
    testified for the Commonwealth in two murder trials.   See
    Commonwealth v. Tevlin, 
    433 Mass. 305
    (2001); Commonwealth v.
    Bennett, 
    424 Mass. 64
    (1997).   Following Dubis's testimony in
    one of the cases, his attorney asked Plath for assistance in
    securing house of correction sentences for Dubis, rather than
    State prison sentences, out of concern for Dubis's safety.
    Plath agreed to speak with law enforcement responsible for the
    relevant prosecutions.   In a separate matter, when Dubis was not
    in jail, Dubis provided information to Plath and received
    twenty-five dollars as reimbursement for gasoline.
    The judge also found that no one, including Plath, promised
    Dubis any assistance in return for information he provided.
    Between his 1998 sentencing and his testimony at the motion to
    11
    suppress hearing in 2003, Dubis sought parole three times.
    Dubis was denied parole on each occasion, and no law enforcement
    official spoke on his behalf at any parole hearing.
    The Sixth Amendment and art. 123 prohibit the Commonwealth
    from "deliberately elicit[ing]" incriminating statements from an
    individual who has been charged with a crime, without the
    individual's counsel present.   
    Tevlin, 433 Mass. at 320
    , quoting
    United States v. Massiah, 
    377 U.S. 201
    , 206 (1964).   In addition
    to direct questioning, the government deliberately elicits
    statements by "intentionally creating a situation likely to
    induce" the charged individual to make incriminating statements
    in the absence of counsel.   United States v. Henry, 
    447 U.S. 264
    , 274 (1980); 
    Harmon, 410 Mass. at 428
    , citing Massiah, supra
    at 206.   There is no dispute that Dubis intentionally elicited
    incriminating statements from the defendant to pass on to law
    3
    We have recognized that the art. 12 may provide broader
    protection of the right to counsel than the Sixth Amendment in
    circumstances in which "the informant has an articulated
    agreement with the government that contains a specific benefit
    or promise." 
    Murphy, 448 Mass. at 467
    . This requirement
    ensures that the Commonwealth observes its "affirmative
    obligation not to act in a manner that circumvents and thereby
    dilutes the protection afforded by the right to counsel." 
    Id., quoting Maine
    v. Moulton, 
    474 U.S. 159
    , 171 (1985). However,
    the court has not yet had to consider circumstances involving a
    jailhouse informant in which art. 12 provides broader protection
    than the Sixth Amendment. See 
    id. at 467-468
    (informant was
    agent for purposes of both Sixth Amendment and art. 12). On the
    facts of this case, we decline to extend the protections of art.
    12 further.
    12
    enforcement for his own advantage.    The only question is whether
    Dubis was a government agent.
    "The United States Supreme Court has not clearly defined
    the point at which agency arises."       
    Murphy, 448 Mass. at 460
    .
    Yet, at a minimum, there must be some arrangement between the
    Commonwealth and the informant before the informant's actions
    can be attributed to the Commonwealth.      See 
    id. at 463-464,
    467
    (articulated agreement between informant and Commonwealth
    containing specific benefit creates agency relationship
    [citation omitted]).    An inmate's "unencouraged hope to curry
    favor" by informing does not establish an agency relationship,
    even if the informant subsequently receives a benefit (citation
    omitted).    
    Harmon, 410 Mass. at 428
    .    See Commonwealth v.
    Rancourt, 
    399 Mass. 269
    , 274 (1987).      See also 
    Moulton, 474 U.S. at 176
    .   Nor does the fact that an informant provided
    information in the past establish an agency relationship.
    Rancourt, supra at 272, 274.
    No agency relationship exists in the absence of a prior
    arrangement between the Commonwealth and the informant.       For
    example, no agency relationship forms when the Commonwealth does
    not promise a benefit to an informant, even where -- as in this
    case -- the informant has provided information to a particular
    police officer on multiple prior occasions.      
    Harmon, 410 Mass. at 429-430
      By contrast, in the Murphy case, an informant was a
    13
    government agent, because an assistant United States attorney
    offered to file a motion to reduce the informant's sentence "if
    he gave 'substantial assistance' to the government."     
    Murphy, 448 Mass. at 465
    , 467-468.   In the Henry case, the government
    paid an informant on a contingency fee basis for information,
    encouraging the informant to elicit incriminating information
    from other inmates.   
    Henry, 447 U.S. at 270-271
    , 274.   Even
    though the government instructed the informant not to question
    the defendant in the Henry case, the Supreme Court concluded
    that keeping the informant near Henry in prison and utilizing
    the contingency fee arrangement for information, tended to show
    that the government "intentionally creat[ed] a situation likely
    to induce Henry to make incriminating statements."     
    Id. at 266,
    270-271, 274.   See United States v. Brink, 
    39 F.3d 419
    , 423-424
    (3d Cir. 1994) (intentional placement of known informant in cell
    may constitute deliberate effort to elicit incriminating
    information).
    Based on the facts established at the motion to suppress
    hearing, Dubis was not an agent of the Commonwealth.     No
    evidence suggests that the Commonwealth put the defendant and
    Dubis in the same cell in order to elicit information from the
    defendant.   Nor does the evidence show that any law enforcement
    official involved in the defendant's case knew that Dubis and
    the defendant would be placed in the same cell or that their
    14
    encounter was the result of anything but happenstance.         That
    Dubis had provided information to a particular officer on more
    than one occasion does not demonstrate that he was a government
    agent.       
    Harmon, 410 Mass. at 429
    .   Dubis is unlike the informant
    in the Harmon case, who had reached out to the officer after
    making first contact with the defendant.        
    Id. at 429.
      The
    defendant in the Harmon case confessed his guilt to the
    informant only after the officer told the informant to "keep his
    ears open."       
    Id. We concluded
    that the informant in the Harmon
    case was not a government agent, and the evidence suggesting
    Dubis was a government agent is even weaker.        See 
    id. at 429-
    430.       Although Plath similarly told Dubis to "keep his ears
    open," all of Dubis's contact with law enforcement regarding the
    defendant's case took place after Dubis's sole conversation with
    the defendant.
    Dubis's conduct as an informant is also unlike the
    informants in 
    Murphy, 448 Mass. at 457
    , and 
    Henry, 447 U.S. at 271
    , 274, because each of them had in place, before eliciting
    incriminating information, an articulated agreement with the
    government, pursuant to which the informants received specific
    benefits.4      As referenced above, the facts in this case do not
    4
    The defendant argues that Dubis is receiving a continuing
    benefit by being placed in a house of correction, rather than a
    State prison. However, Dubis secured this arrangement nearly
    two years before Dubis's encounter with the defendant. We
    15
    even suggest that the Commonwealth planned for Dubis and the
    defendant to share a cell.   Cf. 
    Henry, 447 U.S. at 274
    ; 
    Brink, 39 F.3d at 423-424
    .
    The judge properly denied the defendant's motion to
    suppress.   The record does not show the Commonwealth engaged in
    any conduct in contravention of its "affirmative obligation not
    to act in a manner that circumvents and thereby dilutes the
    protection afforded by the right to counsel."   
    Murphy, 448 Mass. at 467
    , quoting 
    Moulton, 474 U.S. at 171
    .
    b.   Rehabilitation of informant through prior consistent
    statements.   The defendant also claims that it was error to
    permit the Commonwealth to rehabilitate Dubis at trial using
    prior consistent statements, where the trial judge failed to
    make an explicit finding that Dubis had made the prior
    consistent statements before his motive to fabricate arose.     We
    disagree.
    considered whether Dubis was an agent of the government in the
    Tevlin case, and we concluded that "the evidence was that
    [Dubis] was moved for safety reasons and that it is common
    practice to move inmates to prevent retaliation against those
    who provide information." 
    Tevlin, 433 Mass. at 321
    . The trial
    judge in this case made similar findings. Moving an informant
    to mitigate dangers arising from the very fact that he provided
    information is not the type of benefit with which the Sixth
    Amendment and art. 12 are concerned. Cf. 
    Henry, 447 U.S. at 270-271
    ; 
    Murphy, 448 Mass. at 457
    . Because no evidence suggests
    an intentional plan by the government to put Dubis and the
    defendant together, any subsequent benefit Dubis received is not
    sufficient independently to establish an agency relationship.
    See 
    Rancourt, 399 Mass. at 274
    .
    16
    Prior consistent statements are generally inadmissible.
    Mass. G. Evid. § 613(b)(1) (2016).   However, an exception exists
    where a trial judge makes a preliminary finding (1) that the
    witness's in-court testimony is claimed to be the result of a
    recent fabrication or contrivance, improper influence or motive,
    or bias; and (2) that the prior consistent statement was made
    before the witness had a motive to fabricate, before the
    improper influence or motive arose, or before the occurrence of
    the event indicating a bias.   Commonwealth v. Kater, 
    409 Mass. 433
    , 448 (1991), S.C., 
    412 Mass. 800
    (1992) and 
    432 Mass. 404
    (2000).5   Although such a finding is required and it should be
    made on the record, outside the presence of the jury, here such
    a finding is implicit in the judge's decision.   See Commonwealth
    v. Gaulden, 
    383 Mass. 543
    , 547 (1981) (even without explicit
    findings, record supported trial judge's decision to permit
    admission of confession); Commonwealth v. Brady, 
    380 Mass. 44
    ,
    5
    Recently, we have articulated that the use of prior
    consistent statements to rehabilitate a witness is permissible
    when a court finds that a party has claimed that a witness's in-
    court testimony is the result of recent contrivance or bias, so
    long as the prior consistent statement was made before the
    witness had a motive to fabricate or the occurrence of an event
    indicating a bias. See Mass. G. Evid. § 613(b)(2) (2016). Our
    formulation in this case departs only slightly from our more
    recent articulations, but more precisely reflects the underlying
    purposes for which prior consistent statements may be used for
    rehabilitative purposes. See, e.g., Commonwealth v. Nova, 
    449 Mass. 84
    , 93 (2007); Commonwealth v. Brookins, 
    416 Mass. 97
    ,
    102-103 (1993); 
    Kater, 409 Mass. at 448
    ; Commonwealth v.
    Zukoski, 
    370 Mass. 23
    , 26-27 (1976). See also Mass. G. Evid.
    613(b)(2).
    17
    52 (1980) ("Failure to make explicit findings does not in and of
    itself constitute reversible error" [citation omitted]).     In
    addition, trial judges have broad discretion to determine
    whether circumstances warrant the admission of prior consistent
    statements to rebut a claim of a recent fabrication or
    contrivance, improper influence or motive, or bias.    See
    Commonwealth v. Rivera, 
    430 Mass. 91
    , 100 (1999); Commonwealth
    v. Zukoski, 
    370 Mass. 23
    , 27 (1976).
    During the defendant's cross-examination of Dubis, defense
    counsel used prior inconsistent statements from Dubis's
    testimony at the motion to suppress hearing.   Defense counsel
    elicited that, until the week of the trial, Dubis had not seen
    the report generated by his initial interview with police
    regarding the defendant.   Defense counsel also suggested that
    Dubis was expecting assistance at upcoming parole hearings and
    that Dubis intended to ask the prosecution in this case to
    assist him with obtaining release from prison early and being
    placed on a bracelet.   Defense counsel then asked Dubis, "So all
    of a sudden you were shown what they want you to say, isn't that
    right?"   This question suggested a recent contrivance, improper
    influence or bias, and the trial judge permitted the
    Commonwealth to rehabilitate Dubis using his initial statement.
    The defendant argues that the rehabilitation was improper
    because Dubis had the same motive to fabricate (i.e., to
    18
    ingratiate himself with law enforcement) at the time he made his
    prior statement.    Although that may be true, defense counsel
    indicated a particular event influenced Dubis's testimony by
    alleging the Commonwealth showed Dubis "what they want[ed] [him]
    to say" in the week leading up to trial.   The Commonwealth was
    entitled to rebut that suggestion.   See 
    Rivera, 430 Mass. at 100
    ; 
    Zukoski, 370 Mass. at 27
    .    The pertinent question is thus
    whether Dubis's prior statement predates the specific event
    allegedly giving rise to the event that had an impact on Dubis's
    testimony at trial.    Mass. G. Evid. § 613 (b) (2).
    The record shows that Dubis's prior consistent statements
    predated the time at which the defendant implied the
    Commonwealth told Dubis what to say.    Dubis made his original
    statements to the police on June 29, 2000.    Dubis did not
    testify until July 31, 2003.    The prior consistent statements
    were admissible to corroborate Dubis's testimony, and the trial
    judge provided a limiting instruction during the final charge.
    2.     Propriety of substitute testimony for unavailable
    witness.   At trial, State Trooper Michael R. Arnold testified in
    place of Captain John Busa, who was unavailable due to illness,
    regarding ammunition seized at the defendant's home.    Busa had
    seized ammunition from the defendant's home and emptied the
    gunpowder into bags, which he delivered to a State police
    19
    chemist.    Busa also concluded that the ammunition was "reload"6
    ammunition.    Arnold was not present when police retrieved the
    ammunition or during Busa's examination, but Arnold had an
    opportunity to examine the evidence before testifying.    The
    defendant objected at trial to Arnold's substitution for Busa
    and argues on appeal that his inability to cross-examine Busa
    violated his confrontation rights.7   There was no reversible
    error.
    Criminal defendants in Massachusetts must have a
    "meaningful opportunity" to cross-examine an expert regarding
    his or her opinion.    Commonwealth v. Tassone, 
    468 Mass. 391
    , 399
    (2014).    An expert's opinion may be based on personal knowledge;
    "evidence already in the record [or which the parties represent]
    6
    "Reload" ammunition is ammunition that has been
    repackaged, usually by putting a new projectile, new gunpowder,
    and a new priming compound into a previously fired cartridge
    casing. An individual can repackage the ammunition him or
    herself, or purchase reload ammunition from a manufacturer.
    7
    For the first time on appeal, the defendant argues that
    the introduction of evidence collected from the crime scene by a
    private company also violated his confrontation rights.
    However, the introduction of physical items does not constitute
    hearsay, and therefore does not implicate the defendant's
    confrontation rights. See Crawford v. Washington, 
    541 U.S. 36
    ,
    53 (2004). Further, although there was no testimony to
    establish a full chain of custody, that goes to the weight of
    the evidence, not its admissibility. Commonwealth v. Hogg, 
    365 Mass. 290
    , 294-295 (1974). The jury were aware of weaknesses in
    the chain of custody and the Commonwealth's expert did not rely
    on the company's evidence to conclude that the items from the
    crime scene were consistent with the items found in the
    defendant's home.
    20
    will be presented during the course of the proceedings, which
    facts may be assumed to be true in questions put to the
    witness"; and on "facts or data not in evidence if the facts or
    data are independently admissible and are a permissible basis
    for an expert to consider in formulating an opinion."     Mass. G.
    Evid. § 703 (2016).   See Commonwealth   v. Jones, 
    472 Mass. 707
    ,
    713 (2015).   The prosecution may not elicit the facts underlying
    an expert's opinion on direct examination, if the opinion is
    based on information not admitted in evidence.    
    Tassone, 468 Mass. at 399
    .   Because the defendant objected at trial to
    Arnold's testimony, we must be "satisfied beyond a reasonable
    doubt that [any] tainted evidence did not have an effect on the
    jury and did not contribute to the jury's verdicts."
    Commonwealth v. Tyree, 
    455 Mass. 676
    , 701 (2010).
    Arnold's testimony that the ammunition was reload was
    admissible.   It was relevant to support the Commonwealth's
    theory that the defendant used gunpowder from ammunition to
    construct the pipe bomb.   Arnold permissibly based his opinion
    on his own observation of three boxes of ammunition.     Arnold
    concluded the ammunition was reload because otherwise identical
    projectiles had branding marks from different manufacturers,
    indicating that the ammunition had been repackaged.     The
    defendant had the opportunity to -- and did -- cross-examine the
    21
    witness regarding the formulation of his opinion.   
    Tassone, 468 Mass. at 399
    .8
    3.   Expert testimony concerning electrical wire.   Based on
    items seized from the defendant's home, the Commonwealth sought
    the expertise of Dennis Toto.   Toto was a licensed electrician,
    an electrical consultant to the State fire marshal, and formerly
    the chief wire inspector in Revere.   He conferred with a State
    police chemist, who showed him wire with white insulation and a
    red stripe, retrieved from the crime scene, and asked for Toto's
    assistance to locate similar wire.
    At trial, Toto testified to three primary opinions on
    direct examination:   (1) the wire he examined from the crime
    scene was not fit for use in household wiring; (2) the wire
    recovered from the crime scene would not have come from a coffee
    maker that was destroyed in the explosion; and (3) he located
    wire that appeared to be "the exact same" or "extremely similar"
    8
    The remainder of Arnold's testimony, regarding chain of
    custody and the contents of Busa's report, was either cumulative
    or not material. See Commonwealth v. Dagraca, 
    447 Mass. 546
    ,
    552-553 (2006) (inadmissible evidence may not be prejudicial
    when cumulative of other evidence). Arnold should not have been
    permitted to testify to Busa's report. Mass. G. Evid. § 703.
    However, the error was harmless beyond a reasonable doubt, where
    the critical testimony was from the State police chemist, who
    stated that the gunpowder retrieved from the crime scene was
    consistent with gunpowder seized from the defendant's home. Any
    weakness in the chain of custody speaks only to the weight of
    the evidence, not its admissibility. See 
    Hogg, 365 Mass. at 294-295
    . Defense counsel adequately exposed Arnold's lack of
    personal knowledge regarding chain of custody on cross-
    examination.
    22
    at a small electronics store, which he subsequently sent to the
    chemist.9   The defendant now argues that Toto's underlying
    methodology was unreliable.
    "The trial judge has a significant function to carry out in
    deciding on the admissibility of a scientific expert's opinion."
    Commonwealth v. Lanigan, 
    419 Mass. 15
    , 25 (1994).    The expert
    must "have a reliable basis in the knowledge and experience of
    his discipline."    
    Id., citing Daubert
    v. Merrell Dow Pharms.,
    Inc., 
    509 U.S. 579
    , 592 (1993).    If the trial judge determines
    that "the process or theory underlying a scientific expert's
    opinion lacks reliability, that opinion should not reach the
    trier of fact."    
    Id. at 26.
      In Canavan's Case, 
    432 Mass. 304
    ,
    313-314 (2000), an opinion published two days after the jury
    rendered their verdict in this case, we held that the same
    gatekeeping determination applies where an expert's testimony is
    based on clinical experience and personal observation, rather
    9
    The defendant also argues that Toto's opinion -- regarding
    the rarity of that type of white wire with a red stripe -- was
    unreliable, and should have been excluded. This argument is
    misguided for two reasons. First, defense counsel elicited
    Toto's opinion regarding the so-called "rarity" of the wire on
    cross-examination, in an effort to undermine the credibility of
    Toto's investigation. See Commonwealth v. Perez, 
    405 Mass. 339
    ,
    344 (1989) (defendant "cannot now complain of [the] prejudicial
    effect" of testimony elicited by defendant on cross-examination
    [citation omitted]). Second, the defendant misconstrues the
    true nature of Toto's opinion. Although not responsive to the
    question asked, Toto testified that the wire at issue was not
    widely available for purchase in electronics stores, not that
    the wire was rarely used in appliances.
    23
    than on scientific knowledge.   Cf. Kumho Tire Co. v. Carmichael,
    
    526 U.S. 137
    , 141 (1999) (under Federal rules of evidence,
    Daubert analysis applies to expert testimony based on
    "technical" and "other specialized" knowledge).
    For the first time on appeal, the defendant argues that the
    methodology underlying Toto's opinions was unreliable.     In order
    to preserve an objection to an expert's methodology, a defendant
    must file a pretrial motion stating the grounds for its
    objection.   Commonwealth v. Sparks, 
    433 Mass. 654
    , 659-660
    (2001).   Because the defendant did not seek a Lanigan hearing,
    we have no record upon which to determine that the methodology
    did not satisfy the Daubert/Lanigan gatekeeper reliability
    requirements.
    Even if we were able to discern that Toto's methodology was
    not sufficiently reliable, his testimony created no substantial
    likelihood of a miscarriage of justice.   First, Toto adequately
    explained physical differences between household and appliance
    wiring to the jury.   Commonwealth v. Pytou Heang, 
    458 Mass. 827
    ,
    848 n.30 (2001) (role of expert to help jury determine facts).
    Second, the jury could have inferred that the defendant was the
    source of the wire used in the bomb, because the State police
    chemist testified that the wire from the crime scene was
    consistent with wire from the defendant's home.   Third, the jury
    learned from the chemist's direct testimony and extensive and
    24
    effective cross-examination that Toto's wire from the
    electronics store was not consistent with the wire used in the
    bomb.
    4.   Evidence derived from searches of defendant's computer.
    Detective Lieutenant John McLean of the Medford police
    department conducted two searches of the defendant's computer.
    As a result, the Commonwealth introduced two types of evidence,
    the admission of which the defendant argues constitutes
    reversible error:   (1) dates upon which certain files on the
    computer were last accessed; and (2) still images of files
    displayed on the computer monitor (screen shots).     No reversible
    error occurred.
    a.   Last access dates.    McLean testified to a number of
    dates on which files on the defendant's computer were accessed
    and on which electronic mail messages were transmitted.     In
    particular, the defendant objects to the introduction of the
    last access date of an astrology program on the defendant's
    computer.   When McLean launched the program, it contained the
    victim's horoscope information.    McLean testified that the
    information was last accessed on January 19, 2000 -- the day
    before the victim's death.     McLean did not enter the victim's
    name into the program, nor did his investigation alter the
    access date.   The Commonwealth invoked this access date in its
    25
    closing argument to suggest that the defendant was obsessed with
    the victim.
    The defendant argues the last access dates should not have
    been admitted in evidence because the Commonwealth did not
    establish the accuracy or reliability of the computer's time-
    keeping function.   There was no error.
    Jurors may rely on their own common sense and life
    experience in their role as fact finders.     Even in the year
    2000, people commonly and reasonably relied on the accuracy of
    time-keeping mechanisms on computers, cellular telephones, and
    other electronic devices.   Evidence that a time stamp indicates
    a particular time is a sufficient basis for a jury to conclude
    that the relevant activity took place at that time, particularly
    when there is no evidence to the contrary in the record.10
    b.   Screen shots.   McLean testified regarding a number of
    screen shots taken from the defendant's computer.     The defendant
    objects to the admission of screen shots from the astrology
    program and the family tree program.
    When McLean opened the astrology program, the default
    screen showed the victim's name at the top.    McLean did not
    10
    The lack of a meaningful, limiting principle is another
    basis to reject the defendant's reasoning. Must a Swiss
    watchmaker have to testify every time the owner of a Swiss watch
    relies on his watch to testify as to the time of day? Must the
    city planner be called to verify a witness's reference to a
    street sign as a basis for testifying what street occupies a
    particular location? To ask the question is to answer it.
    26
    enter the victim's name.   He explained that the default screen
    was determined by data and settings for the program contained in
    other files on the computer.   Without entering any other
    information, McLean scrolled down through the menu choices that
    the program displayed, which showed the victim's name, birth
    horoscope, birth date, time of birth, and birth location.
    McLean then chose "select" on the victim's name, causing the
    program to display additional information.
    McLean similarly explained that the family tree program
    referenced data contained in other files in the computer,
    including files labeled using the victim's last name.    When
    McLean opened the family tree program, it defaulted to the
    victim's information based on the computer's existing settings.
    The Commonwealth introduced several screen shots from the
    program that displayed only when McLean himself made certain
    selections within the program.   McLean could not determine
    whether the defendant had made the same selections.
    The defendant objects to the admission of the screen shots
    that only displayed following McLean's selections in each of the
    programs.   The defendant argues the screen shots were
    inadmissible because the Commonwealth failed to demonstrate (1)
    the reliability of the software; and (2) that the defendant used
    the software in the manner represented by the Commonwealth.
    27
    No reversible error occurred.    We reject the defendant's
    first argument and partially reject the second.     McLean's
    testimony sufficiently demonstrated how the software worked.
    However, all but one of the screen shots were inadmissible
    because the Commonwealth could not demonstrate that the
    defendant actually accessed the same information.     One screen
    shot -- the only one directly inculpating the defendant -- was
    properly admitted.   The remainder were either cumulative or
    innocuous and did not prejudice the defendant.
    The Commonwealth established the reliability of the
    programs.    See Commonwealth v. Torres, 
    453 Mass. 722
    , 723, 737
    (2009).   McLean carefully explained how each of the programs
    worked, as relevant to this case.    He stated how the programs
    incorporate settings and data stored in other files on the
    computer, and that the settings and data on the defendant's
    computer caused the programs to display the victim's information
    by default.    The defendant presented no evidence to the
    contrary, and the jury were entitled to credit McLean's
    explanation.   Commonwealth v. James, 
    424 Mass. 770
    , 785 (1997).
    The erroneously admitted screen shots did not prejudice the
    defendant.    In Commonwealth v. Williams, 
    456 Mass. 857
    , 868-869
    (2010), we found an electronic message inadmissible when the
    proponent provided no foundation identifying who sent the
    message, even though foundational testimony established that the
    28
    sender must have had access to a particular Web page.
    Similarly, McLean did not know whether the defendant had ever
    accessed the information depicted in the screen shots.    Without
    evidence that the defendant had accessed the screen shots, they
    had no tendency to affect the probability of any material fact.
    See Mass. G. Evid. § 401 (2016).
    However, most of the improperly admitted screen shots
    contained only general information regarding the victim and her
    family that was cumulative of much more compelling evidence from
    a multiplicity of sources that the defendant was obsessed with
    the victim.   Given the wealth of other admissible evidence on
    that point, the screen shots admitted in error were cumulative.
    See Commonwealth v. Esteves, 
    429 Mass. 636
    , 640 (1999)
    (inadmissible hearsay may not be prejudicial where cumulative);
    Commonwealth v. Davis, 
    54 Mass. App. Ct. 756
    , 765 (2002) (same).
    The only screen shot that was properly admitted depicted a
    mailing label from the family tree program.   The label contained
    the name "Sebastiano Passanisi" and a Malden address.    The
    victim's downstairs neighbor testified the mailing label on the
    package contained the name "Lois Passanisi" (Sebastiano's wife
    and the victim's sister) with a Malden address.   Lois Passanisi
    had not lived in Malden in the roughly thirty years prior to the
    victim's death.   Even when she did live in Malden, her last name
    was not Passanisi, and the home where she resided was not in her
    29
    name.     Nor had Sebastiano Passanisi lived in Malden at any point
    in the preceding thirty years.     The defendant also told Dubis
    that he had used the address of the victim's sister as the
    return address on the package.     Even though McLean could not
    testify that the defendant had seen the mailing label, the jury
    reasonably could have inferred that the source of the inaccurate
    information on the package containing the bomb was the family
    tree program on the defendant's computer.     Cf. 
    Williams, 456 Mass. at 868-869
    .
    5.     Use of victim's testimony from prior proceedings.     At
    trial, the Commonwealth introduced in evidence transcripts of
    the victim's testimony from earlier proceedings involving both
    the defendant and the victim.     One transcript came from a
    pretrial dangerousness hearing stemming from charges against the
    defendant for malicious destruction of property.     The other
    transcript contained the victim's testimony from a bail
    revocation hearing, following the defendant's violation of the
    victim's restraining order against him.11
    11
    For the first time on appeal, the defendant objects to
    the manner in which the transcript was presented to the jury.
    The victim's testimony was read aloud by an assistant district
    attorney (ADA), while another ADA read the questions on direct
    and defense counsel read the questions on cross-examination.
    The defendant argues that allowing an ADA to read the victim's
    answers risked confusing the jury as to the prosecutor's role in
    the case. We disagree. The ADA was not sworn as a witness, and
    the trial judge instructed the jury that the ADA was reading
    from a transcript containing the victim's testimony. "We
    30
    In her testimony from each proceeding, the victim
    identified the defendant as an individual committing certain
    prior bad acts, which were admissible "to show motive . . . and
    to show the entire relationship between the defendant and the
    victim" (citations omitted).    Commonwealth v. Drew, 
    397 Mass. 65
    , 79-80 (1986).     See Mass. G. Evid. § 404(b) (2016).   In her
    testimony from one transcript, the victim identified the
    defendant as the individual who, on two occasions, poured
    battery acid into the gasoline tank of her motor vehicle.        In
    the other transcript, she testified that the defendant drove by
    the restaurant where she worked, in violation of his restraining
    order.
    The defendant makes two arguments related to the admission
    of the transcripts.    First, the victim's testimony from the
    hearings was not admissible because it does not fall within the
    prior recorded testimony exception     to the rule against hearsay
    and its introduction violated his confrontation rights under the
    Sixth Amendment and art. 12.    The defendant did not object at
    trial to the transcripts based on the limits of the prior
    recorded testimony exception or constitutional grounds.     We
    review any error to determine whether it created a substantial
    generally presume that a jury understand and follow limiting
    instructions . . . and that the application of such instructions
    ordinarily renders any potentially prejudice harmless" (citation
    omitted). Commonwealth v. Crayton, 
    470 Mass. 228
    , 251 (2014).
    31
    likelihood of a miscarriage of justice.    See Commonwealth v.
    Cintron, 
    438 Mass. 779
    , 783 n.2 (2003).    The admission of the
    victim's prior testimony under oath did not create such a
    likelihood.
    Second, the defendant argues that the trial judge
    improperly restricted his ability to impeach the victim's prior
    testimony using video recordings she had made of the defendant
    purportedly pouring battery acid into the gasoline tank of her
    vehicle.    At trial, the defendant objected to the denial of the
    requested use of the recordings.    There was no error.
    a.     Admissibility of victim's prior testimony.     "We need
    not decide the admissibility of [the victim's] testimony as
    prior recorded testimony under our common law rule.     If the
    standards of the confrontation clause are met in the admission
    of [the victim's] testimony, the interests of justice test
    applied under G. L. c. 278, § 33E, is also met."     Commonwealth
    v. Trigones, 
    397 Mass. 633
    , 638 (1986).    Accordingly, we review
    the admission of the prior recorded testimony only to determine
    whether it offends the defendant's confrontation rights.      We
    conclude it does not.
    Admitting prior testimony does not violate the defendant's
    confrontation rights when the declarant is unavailable, as a
    matter of law, to testify and "the defendant has had an adequate
    prior opportunity to cross-examine the declarant."      Commonwealth
    32
    v. Hurley, 
    455 Mass. 53
    , 60 (2009), citing Crawford v.
    Washington, 
    541 U.S. 36
    , 57-59 (2004).    Under the Sixth
    Amendment and art. 12,12 five factors determine whether the
    defendant had a sufficient opportunity to cross-examine the
    declarant at the prior proceeding:    (1) the declarant was under
    oath, (2) the defendant was represented by counsel, (3) the
    proceeding took place before a record-keeping tribunal, (4) the
    prior proceeding addressed substantially the same issues as the
    current proceeding, and (5)13 the defendant had reasonable
    opportunity and similar motivation on the prior occasion for
    cross-examination of the declarant.   Hurley, supra at 60.    The
    only dispute in this case is whether the prior proceedings were
    addressed to "substantially the same issues" for which the prior
    recorded testimony was admitted at trial, and whether the
    defendant had a similar motive to cross-examine the witness.    We
    answer both questions in the affirmative.
    12
    In 
    Hurley, 455 Mass. at 59-60
    & n.12, we dealt only with
    the Sixth Amendment, not art. 12. However, "in cases like this
    one involving the hearsay rule and its exceptions, we have
    always held that the protection provided by art. 12 is
    coextensive with the Sixth Amendment." Commonwealth v.
    Housewright, 
    470 Mass. 665
    , 670 n.7 (2015), quoting Commonwealth
    v. DeOliveira, 
    447 Mass. 56
    , 57 n.1 (2006). On the facts of
    this case, we similarly decline to extend the protections of
    art. 12 beyond the Sixth Amendment's protections.
    13
    In 
    Hurley, 455 Mass. at 60
    , we treated the fourth and
    fifth factors as one factor. Here, we acknowledge they are
    distinct requirements.
    33
    The prior proceeding need not be addressed to precisely the
    same issue and the defendant need not have had precisely the
    same motive for cross-examination.    See 
    id. at 60.
        The
    similarity must be sufficient to provide the "trier of fact
    . . . a satisfactory basis for evaluating the truth of the prior
    statement."   
    Id. at 62-63.
      The defendant's right to
    confrontation does not guarantee "cross-examination that is
    'effective in whatever way, and to whatever extent, the defense
    might wish.'"   
    Id. at 62,
    quoting Delaware v. Fensterer, 
    474 U.S. 15
    , 20 (1985) (per curiam).     Rather, the confrontation
    clause protects the defendant's right to test the evidence
    presented against him by the sovereign through the crucible of
    cross-examination.
    We previously have considered whether a defendant had a
    sufficiently similar motive on cross-examination in a prior
    proceeding for purposes of the confrontation clause, when the
    prior proceeding arose from the same underlying conduct.       For
    example, a declarant's prior testimony from a pretrial
    dangerousness hearing pursuant to G. L. c. 276, § 58A, may be
    sufficiently similar when introduced at a subsequent trial of
    criminal charges for the same conduct.     
    Hurley, 455 Mass. at 61
    -
    62.
    In Commonwealth v. Canon, 
    373 Mass. 494
    , 500-501 (1977),
    cert. denied, 435 U.S. (1978), we affirmed the admission of
    34
    prior testimony from a civil contract dispute, in which the
    burden of proof requires only a finding by a preponderance of
    the evidence, in a subsequent criminal proceeding.14     During the
    contract dispute, one of the contracting parties defended an
    allegation of breach of contract by arguing that the contract
    was illegal and therefore unenforceable.    
    Id. The plaintiff
    in
    the civil dispute -- a public official -- was subsequently
    prosecuted for violating a conflict of interest law by entering
    into the contract.   
    Id. at 495.
      The legality of the agreement
    was at issue in both cases.   
    Id. at 500-501.
        We concluded the
    issues and motivation on cross-examination were sufficiently
    similar for confrontation purposes, notwithstanding differences
    in the burdens of proof and the tactical direction of cross-
    examination.   
    Id. In this
    case, the issues and the defendant's motive on
    cross-examination at the prior proceedings were sufficiently
    similar to satisfy the confrontation clause.      See 
    Hurley, 455 Mass. at 61
    -62; 
    Canon, 373 Mass. at 500-501
    .      Although the
    victim's testimony at the prior proceedings dealt with different
    underlying conduct -- whether the defendant had damaged her
    14
    Although we decided Commonwealth v. Canon, 
    373 Mass. 494
    (1977), cert. denied, 435 U.S. (1978), prior to Crawford, we
    nonetheless considered the similarity of the motive on cross-
    examination to determine whether the prior testimony was
    sufficiently reliable, under the former rule of Ohio v. Roberts,
    
    448 U.S. 56
    , 65-66 (1980).
    35
    vehicle and not whether the defendant had murdered her -- her
    testimony was admitted at the current proceeding to establish
    only that the defendant had in fact damaged the victim's
    vehicle.   The prior testimony focused on her identification of,
    and her hostile relationship with, the defendant.   These issues
    had been subject to adequate cross-examination at the prior
    proceedings.   The defendant was permitted to introduce that
    cross-examination, in addition to other inconsistent statements,
    to undermine the victim's credibility, the reliability of her
    identification of the defendant as the perpetrator of the prior
    bad acts, and the hostile nature of their relationship.    In many
    instances, the cross-examination of the victim in the prior
    proceedings closely resembled the defendant's cross-examination
    of other witnesses at trial who had personal knowledge of the
    defendant's relationship with the victim.
    The prior recorded testimony was admitted at trial only to
    prove the bad act, as relevant to the hostile relationship,
    rather than the conduct forming the basis of the murder charges.
    The issues at the prior proceedings and at the murder trial were
    therefore sufficiently similar to permit the jury to determine
    the credibility of the victim's testimony from those earlier
    proceedings, 
    Hurley, 455 Mass. at 60
    , satisfying the
    confrontation clause and our review pursuant to G. L. c. 278, §
    36
    33E.15    See 
    Canon, 373 Mass. at 500-501
    .   See also People v.
    Sierra, 
    482 Mich. 1107
    , 1109-1110 (2008) (Kelly, J., dissenting)
    (dissenting from denial of appeal, because lower court may have
    erred in finding that testimony from trial of different
    defendant on related drug charges did not satisfy similarity
    requirement); State vs. Stein, Court of Appeals of Wash., Nos.
    31980-2-II & 32982-4-II, slip op. at pars. 105-111 (August 7,
    2007, amended August 21, 2007) (affirming admission of prior
    testimony from real estate dispute in subsequent murder trial).
    b.    Restriction on use of video recordings to impeach
    victim's prior testimony.    At trial, the defendant moved to
    introduce two video recordings, created by the victim, that
    purportedly showed the defendant pouring battery acid into the
    gasoline tank of her vehicle.    Originally, the Commonwealth
    sought to introduce the recordings, but the defendant objected
    15
    When the Commonwealth offers an out-of-court statement in
    a criminal case, the evidentiary and potential confrontation
    clause issues can prove challenging. The following conceptual
    approach may be helpful: First, is the out-of-court statement
    being offered to establish the truth of the words contained in
    the statement? In other words, is the out-of-court statement
    hearsay? If the out-of-court statement is offered for any
    purpose other than its truth, then it is not hearsay and the
    confrontation clause is not implicated. Second, if the evidence
    is hearsay, does the statement fall within an exception to the
    rule against hearsay? Third, if the hearsay falls within an
    exception, is the hearsay "testimonial"? Fourth, if the hearsay
    is testimonial, has the out-of-court declarant been previously
    subject to cross-examination and is the out-of-court declarant
    "unavailable" as a matter of law, such that the testimonial
    hearsay does not offend the confrontation clause?
    37
    on the grounds that they were "dark and murky" such that the
    "person's face is unable to be seen."     The trial judge excluded
    the recordings.
    Subsequently, the defense sought to admit the recordings
    for two purposes:     (1) to impeach the victim's prior recorded
    testimony in which she identified the defendant, and (2) to
    demonstrate in the defense's case that the defendant was not the
    individual captured in the recordings.     On appeal, the defendant
    argues only that the trial judge erred with respect to the first
    purpose.16   The trial judge did not err in denying the
    defendant's motion.
    A trial judge has discretion to determine the scope of
    cross-examination.    Mass. G. Evid. § 611(a), (b) (2016).   The
    trial judge permissibly determined that the recordings served
    little, if any, value to impeach the victim's identification of
    the defendant as the individual pouring battery acid into her
    vehicle's gasoline tank.    The victim's testimony was based on
    her own observations, which differed from what the recordings
    captured, as she did not remain at the same vantage point as the
    16
    Any error as to the second purpose did not create a
    substantial likelihood of a miscarriage of justice. The defense
    would have used the recordings only in an effort to disprove a
    prior bad act, a collateral matter cumulative of other evidence
    showing a hostile relationship. See Commonwealth v. Perez, 
    411 Mass. 249
    , 260-261 (1991) (even if erroneously admitted,
    evidence that was merely cumulative was harmless beyond
    reasonable doubt).
    38
    video recorder.   See Commonwealth v. Pettijohn, 
    373 Mass. 26
    , 30
    (1977) (misidentification by one witness properly excluded as
    irrelevant for purposes of impeaching identification by another
    witness); Pettijohn v. Hall, 
    599 F.2d 476
    , 480 (1st Cir.), cert.
    denied, 
    444 U.S. 946
    (1979) (same).   The trial judge reasonably
    determined that the defense should not be permitted to use the
    recordings solely for impeachment purposes.
    Conclusion.    We have reviewed the entire record on both the
    law and the facts pursuant to our obligation under G. L. c. 278,
    § 33E.   We have determined that any errors identified above do
    not, individually or cumulatively, entitle the defendant to
    relief, as the interests of justice do not require the entry of
    a verdict of a lesser degree of guilt or a new trial.
    Judgment affirmed.