Commonwealth v. Armstrong ( 2023 )


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    SJC-13134
    COMMONWEALTH   vs.   GLENN R. ARMSTRONG.
    Worcester.      April 10, 2023. - June 30, 2023.
    Present:   Budd, C.J., Gaziano, Cypher, Kafker, & Wendlandt, JJ.
    Homicide. Constitutional Law, Admissions and confessions,
    Voluntariness of statement, Waiver of constitutional
    rights. Evidence, Admissions and confessions,
    Voluntariness of statement, Fingerprints, Expert opinion.
    Search and Seizure, Threshold police inquiry. Threshold
    Police Inquiry. Mental Impairment. Practice, Criminal,
    Capital case, Motion to suppress, Admissions and
    confessions, Voluntariness of statement, Waiver,
    Instructions to jury. Witness, Expert.
    Indictments found and returned in the Superior Court
    Department on June 13, 2017.
    A pretrial motion to suppress evidence was heard by Shannon
    Frison, J., and the cases were tried before Daniel M. Wrenn, J.
    Sean M. Smith for the defendant.
    Danielle E. Borges, Assistant District Attorney, for the
    Commonwealth.
    WENDLANDT, J.    The defendant, Glenn Armstrong, was
    convicted of murder in the first degree on the theories of
    2
    deliberate premeditation and extreme atrocity or cruelty in
    connection with the January 2017 killing of his eighty-three
    year old father, Walter Armstrong.1   The victim was found dead in
    his Blackstone home.    He had suffered multiple blows to his head
    and torso, and six of his ribs were fractured.    A plastic
    garbage bag had been placed over his head, apparently while he
    was still alive, and then tied tightly around his neck with a
    belt.    A medical examiner would later opine that the cause of
    death was blunt force injuries of the head and torso and
    asphyxia by ligature strangulation.    There were no signs of
    forced entry, and the defendant's belongings were in the home,
    as was the sideview mirror of the victim's truck, although the
    truck was missing.    Earlier that day, before the discovery of
    the victim's body, the defendant, who had been estranged from
    his father for decades before reestablishing a connection that
    year, had arrived at his brother-in-law's home searching for
    adhesive to reattach the truck's sideview mirror; he left a
    handwritten note, stating, "DAds iN A Betta Mood Now."     The
    defendant would later be found in New Jersey along with the
    victim's truck, which was missing its sideview mirror.
    In this direct appeal, the defendant maintains that the
    motion judge erred in denying his motion to suppress evidence
    1 The defendant was also convicted of larceny of a motor
    vehicle, in violation of G. L. c. 266, § 28 (a).
    3
    from the New Jersey police officers who arrested him, that the
    trial judge erred in denying his request for a jury instruction
    on mental impairment, and that testimony by the Commonwealth's
    fingerprint analysis expert opining that fingerprints found on
    the bag covering the victim's body matched the defendant's was
    improper.   He also asks the court to exercise its authority
    under G. L. c. 278, § 33E, to reduce the degree of guilt or
    order a new trial.   We affirm the convictions and discern no
    reason to grant relief under G. L. c. 278, § 33E.
    1.   Background.   a.   Facts.   The following facts are
    supported by the evidence presented at trial.
    i.   Discovery of the victim.     The defendant and the victim,
    his eighty-three year old father, had been estranged for
    approximately two decades.     They had reconnected after the death
    of the defendant's mother -- the victim's wife -- in 2016.
    Approximately nine months later, on January 11, 2017, a
    Blackstone police officer arrived at the victim's Blackstone
    home at about 5 P.M. to conduct a welfare check;2 no one answered
    2 Earlier that morning, at about 10:45 A.M., a "Meals on
    Wheels" delivery driver had arrived at the victim's home, but
    the victim had not answered the door and his truck was not in
    the carport. The driver observed that the television in the
    living room was on and saw a man's shoe in the middle of the
    floor; the driver informed her supervisor, and ultimately the
    Blackstone police department was asked to conduct a welfare
    check.
    4
    the door, and the victim's truck was not in the carport.3    There
    were no signs of forced entry; the doors to the house were
    locked, and the windows were secured.4
    The police officer radioed dispatch to ask for assistance
    in gaining entry to the home.   The defendant's sister and
    brother-in-law arrived; the sister had a key to a sliding door
    in the carport, but not to the screen in front of it, which the
    officer cut through.   They entered the house and ultimately
    found the victim dead on the floor of one of the bedrooms.
    A black garbage bag covered the victim's head and was
    secured tightly with a belt around his neck.   In the opinion of
    the Commonwealth's expert on fingerprint analysis, latent
    fingerprints found on the bag and on a roll of bags in the
    basement matched the defendant's fingerprints.5   Next to the
    victim were his wallet, which did not appear to be missing any
    3 The television, which had been on earlier that morning,
    see note 2, supra, was still on.
    4 There were three doors to the house. Two were locked from
    the inside -- only the front door could have been locked and
    deadbolted from the outside. Given that there was no sign of
    forced entry, the Commonwealth's theory was that the killer
    could have left through the front door and then locked it from
    the outside with the key. As discussed infra, when the
    defendant was later found in New Jersey, he had two keys for the
    front door -- one had belonged to the victim, and the other had
    belonged to the defendant's mother.
    5 The expert based this opinion on the "analysis,
    comparison, evaluation, and verification" (ACE-V) framework, as
    discussed infra.
    5
    items, and a receipt from the prior day for an order, including
    a medium sized drink, from a quick serve food establishment in
    Woonsocket, Rhode Island.    In the hallway in front of the
    doorway was a red-brown stain of the victim's blood.
    On the kitchen table lay the victim's glasses6 and a
    sideview mirror from the victim's truck.7    Near the kitchen sink
    was a cup bearing a logo from the same quick serve food
    establishment as shown on the receipt.    In the basement were the
    defendant's leather jacket, identification card, and cell phone.
    These items were found next to a couch that appeared slept-in;
    the defendant had been evicted recently from his own home.    Near
    the belongings was the roll of black garbage bags.
    A medical examiner performed an autopsy on the victim.
    Inside the garbage bag, she found almost three cups of blood.
    There was a ligature furrow, three centimeters wide, around the
    victim's neck.    The victim had multiple bruises on his arms and
    torso, bruises and lacerations on his face and hands, swelling
    and bruising of the left ear, hemorrhages of the conjunctivae of
    his eyes, and six fractured ribs.    The medical examiner opined
    that the victim was alive when the bag was placed over his head.
    She explained that strangulation occludes part of the blood
    6 After the death of his wife, the victim had been sleeping
    on a couch in the adjacent living room.
    7   Two bent venetian blinds were the only sign of a struggle.
    6
    flow, increasing the blood pressure in the capillaries in the
    face, resulting in ruptured capillaries and pinpoint
    hemorrhages, which the victim had.     These hemorrhages would not
    have occurred if the victim had not been alive while he was
    being strangled.     She opined that the cause of death was blunt
    force injuries of the head and torso and asphyxia by ligature
    strangulation.     The defendant's deoxyribonucleic acid (DNA) was
    not found on the victim, nor was the victim's DNA found on the
    defendant.
    ii.   Events prior to discovery of the victim's body.    Two
    days before the victim's body was found, the defendant was
    without a vehicle -- his own truck was being repaired by his
    brother-in-law and his rental car was in an impound lot.     He
    wore the leather jacket and a lanyard with the identification
    card –- items that would be found later in the victim's home --
    when the defendant and his brother-in-law tried and failed to
    retrieve the rental vehicle.     The victim had refused to drive
    the defendant to the impound lot, but gave him a ride to a
    storage facility in his truck.8    The victim generally did not
    allow others to drive his truck, and at least once, the
    8 The defendant showed an employee of the storage facility
    his identification card and told her that he was "homeless."
    7
    defendant had asked to borrow the victim's truck, but the victim
    had refused.9
    On the morning of the day before the victim's body was
    found, his truck was in its usual place in the carport of the
    Blackstone home.10    The truck had no visible damage.   The victim
    happily greeted a delivery driver from "Meals on Wheels,"
    engaging in "light-hearted banter."11    That afternoon was the
    last time the victim was seen alive; he had arrived at a
    business in Woonsocket, Rhode Island, looking for the
    defendant.12    During that same afternoon, the defendant initially
    had called his brother-in-law to ask to be picked up from a
    quick serve food establishment in Woonsocket, but later informed
    his brother-in-law that he no longer needed assistance because
    the victim had given him a ride in his truck.    As discussed
    supra, a receipt and cup from this establishment would later be
    found in the victim's home when his body was discovered.
    9 A witness for the defense, a friend of the defendant,
    testified that once, in 2016, the defendant borrowed the
    victim's truck.
    10The victim generally parked his truck in the carport of
    his home and did not drive at night due to his limited vision.
    11Following the death of his wife, the defendant's mother,
    the victim had been receiving food deliveries from "Meals on
    Wheels."
    12The defendant had lived in Woonsocket, which is just
    south of Blackstone, prior to being evicted from his home.
    8
    At approximately 3 A.M. and 5 A.M. on January 11, 2017, the
    day the victim's body was found, the defendant left voice
    messages for the car rental company.    In the second message, he
    told the company that he no longer needed a vehicle.
    At around 9:30 A.M., the defendant drove the victim's truck
    to his brother-in-law's garage, looking for adhesive to reattach
    the sideview mirror.    The brother-in-law was not there.13   The
    defendant entered the garage, carrying a brown paper bag, and
    then left.
    Later that day, the brother-in-law found a note written on
    a paper bag in the defendant's handwriting, left on his work
    bench, reading "THNX 4 The Donut Bro."     The brother-in-law would
    later find a second note, also written in the defendant's
    handwriting on a piece of a brown paper bag, reading "DAds iN A
    Betta Mood Now."   Neither note had been in the garage before
    that morning.
    iii.     New Jersey events.   The day after the victim's body
    was found, two police officers from Mount Laurel, New Jersey,
    Mark Ricigliano and Alan Levy, were dispatched to a motel to
    respond to "a trespassing-suspicious persons complaint."
    Ricigliano encountered the defendant in the lobby bathroom and
    walked with him to the motel's parking lot, where the defendant
    13 The brother-in-law's coworker was present and testified
    as to his observations of the defendant that morning.
    9
    had left the victim's truck.     The truck was missing its sideview
    mirror.    The defendant was disheveled, wearing shorts and
    unlaced boots, and had abrasions and scratches on his face and
    legs.     He refused to share his name with the officers.   He told
    the officers that he had been robbed of his cell phone14 and
    wallet; he reported that he was stranded, having run out of
    gasoline while on his way to the Department of the Interior,
    where he claimed he worked an unpaid job.15    Ricigliano testified
    that the defendant was "just kind of strange" and was
    confrontational and "aggressive at times."     Levy added that the
    defendant "was just speaking things that didn't make much sense
    . . . and just kind of irrational, and just like something was
    going on."
    Ricigliano conducted a registration query of the truck and
    learned that it was registered to the victim; he also learned
    that "Glenn Armstrong" was wanted for questioning in a murder
    investigation.    Ricigliano called the defendant by his first
    name; when the defendant acknowledged him, the defendant was
    placed under arrest.
    14As set forth supra, the defendant's cell phone was found
    in the victim's basement the day prior, when the victim's body
    had been found.
    15Ricigliano offered to make a telephone call for the
    defendant.
    10
    From the glove box of the truck, officers recovered a set
    of keys on a keychain with the name "Walter" and a label "front"
    -- the victim's keys to the front door of his house.    Another
    set of keys to the front door of the victim's house were
    recovered; these were labeled with the name of the defendant's
    mother.   Later, while officers attempted to read the defendant
    the Miranda rights, he repeatedly interrupted them, including to
    ask them whether the victim had reported the truck stolen and to
    tell them that he had been evicted; that he had ripped the
    sideview mirror off the victim's truck; that he subsequently had
    awakened his father, who appeared "grouchy"; and that he had
    stolen the truck to get it fixed at his brother-in-law's garage.
    b.    Procedural history.   The defendant was indicted in
    June 2017 on one count of murder in the first degree, in
    violation of G. L. c. 265, § 1, and one count of larceny of a
    motor vehicle, in violation of G. L. c. 266, § 28 (a).     The
    defendant filed a motion to suppress evidence from the New
    Jersey encounter, which was denied after an evidentiary hearing.
    A jury trial was held in May 2019.     The jury found the
    defendant guilty of murder in the first degree on the theories
    of deliberate premeditation and extreme atrocity or cruelty.
    11
    The defendant was sentenced to life without parole.16   He filed a
    timely notice of appeal.
    2.   Discussion.   In this direct appeal, the defendant
    raises several issues, which we address in turn.
    a.   Motion to suppress.   The defendant contends that the
    motion judge erred in denying his motion to suppress evidence
    obtained by the New Jersey police officers, arguing for the
    first time on appeal that he was subject to custodial
    interrogation without being provided with Miranda warnings.17
    The Commonwealth asserts that, because the interaction was
    within the scope of the community caretaking function, there was
    no custodial interrogation and Miranda warnings were not
    required.   "In reviewing a decision on a motion to suppress, we
    accept the judge's subsidiary findings absent clear error but
    conduct an independent review of [the] ultimate findings and
    16The jury also found the defendant guilty of larceny of a
    motor vehicle, and the defendant was sentenced to a term of from
    two years to three years in State prison, concurrent with his
    life sentence.
    17In his motion to suppress, the defendant argued that he
    was illegally seized prior to the point at which the New Jersey
    police officers learned of the outstanding arrest warrant in
    connection with the victim's killing; he did not raise an
    argument related to an alleged failure to provide him with
    Miranda warnings. Similarly, at trial, the defendant renewed
    his "motion to suppress the Terry stop," but again did not
    contend that there was a Miranda rights violation. The renewed
    motion was denied on the same grounds as was his motion to
    suppress.
    12
    conclusions of law" (quotations and citation omitted).
    Commonwealth v. Jones-Pannell, 
    472 Mass. 429
    , 431 (2015).
    i.    Background.   We recite the facts found by the motion
    judge.18
    Ricigliano and Levy "received a call for a person who would
    not leave . . . [a m]otel"; upon arriving at the motel,
    Ricigliano spoke with employees at the front desk, who told him
    "that a man who was not a guest had been in and out of the
    building most of the night, and that they were concerned about
    his appearance and demeanor."     The employees "wanted [the
    officers] to check on [the defendant] and make sure he was
    okay."     A desk clerk stated that the defendant "made her feel
    uncomfortable."19
    Ricigliano knocked on the door of the motel lobby bathroom,
    and the defendant emerged, left the lobby area, and departed
    18We also supplement the motion judge's subsidiary findings
    with "evidence from the record that 'is uncontroverted and
    undisputed and where the judge explicitly or implicitly credited
    the witness's testimony.'" Jones-Pannell, 
    472 Mass. at 431
    ,
    quoting Commonwealth v. Isaiah I., 
    448 Mass. 334
    , 337 (2007),
    S.C., 
    450 Mass. 818
     (2008). We "do so only so long as the
    supplemented facts 'do not detract from the judge's ultimate
    findings.'" Jones-Pannell, 
    supra,
     quoting Commonwealth v.
    Jessup, 
    471 Mass. 121
    , 127-128 (2015).
    19Levy testified as to the "normal protocol" in these
    situations; he stated that this "standard operating procedure"
    was intended to "make the complainant feel good that . . . we
    identified this person . . . [and] they're not wanted, they're
    not missing [or] endangered, [and] . . . they're not a [National
    Crime Information Center] hit."
    13
    from the motel into the adjacent parking lot.   Ricigliano
    followed him.    Ricigliano explained that the defendant "was
    reluctant to give his name to the officer, but [he] stated that
    he had lost his wallet (and money) and had run out of
    gas[oline]."    It was winter; the defendant was wearing shorts,
    and his work boots were unlaced.   He "was argumentative at
    times, [and] said that he worked for the Department of the
    Interior and [was] on his way back to Washington[,] D.C. (though
    he said he did not get paid from that job)."
    Ricigliano noted that "the defendant's emotions seemed to
    fluctuate during their conversation."   He thought the defendant
    "might be lost, disoriented, or a missing person."20    Ricigliano
    20Ricigliano testified that they "were trying to figure out
    who [the defendant] was and how [they] could help him"; their
    "main concern was that he may have been -- just by the way he
    was acting -- he may have been an emotionally disturbed person
    that may have been entered missing or endangered and [they]
    were, at that point in time[,] concerned for his well-being to
    see if, you know, what [they] could do to assist him." He
    further testified:
    "[W]e asked him, obviously, what was going on, why you were
    there. And just his answers -- his evasiveness about who
    he was kind of makes you, you know, maybe [think] there's
    something going on. Maybe he doesn't know who he is. So
    out of concern for his well-being, and just trying to see
    if he needs some type of help, he said he was stranded
    there. We dug a little more to, you know . . . -- like I
    said, sometimes people leave their house and they're
    reported missing because they have mental problems, or
    issues, or whatever. And they're, you know, we were just
    concerned that he may have been, you know, ha[ving] an
    14
    "directed the defendant to sit down near [the victim's] truck at
    one point because he was becoming agitated and irrational."21
    Ricigliano then entered the truck's license plate number into
    his mobile data terminal and learned of an arrest warrant for an
    individual named "Glenn Armstrong"; when the defendant responded
    to the name "Glenn," Ricigliano placed the defendant under
    arrest.22   The interaction lasted approximately twenty minutes,
    from when Ricigliano arrived on the scene to when he arrested
    the defendant.23
    ii.    Analysis.   Law enforcement officers sometimes are
    called upon to engage in duties "in which there is no claim of
    issue and he left the house and he -- so, you never know.
    There's a thousand things that it could be."
    Levy testified that he and Ricigliano were trying to "maybe help
    get [the defendant] some gas[oline]" and "maybe even possibly
    get[] him medical treatment if he needed."
    21When asked whether the order was made in "a command
    voice," Ricigliano answered, "We pressed him to sit down, yes."
    Additionally, Levy explained that he was concerned that the
    defendant may have been missing, wanted, or a danger to himself
    or others.
    22Levy testified that, until they learned of the warrant,
    they were "trying to find ways to help" the defendant.
    23An audio recording of the interaction was introduced at
    trial; this recording was not presented during the motion
    hearing, nor was it before the trial judge when he denied the
    renewed motion. Nonetheless, we have reviewed the audio-visual
    footage independently, see Commonwealth v. Yusuf, 
    488 Mass. 379
    ,
    380-381 (2021), in connection with our review pursuant to G. L.
    c. 278, § 33E.
    15
    criminal liability," such as the officers' "community caretaking
    functions, totally divorced from the detection, investigation,
    or acquisition of evidence relating to the violation of a
    criminal statute."    Cady v. Dombrowski, 
    413 U.S. 433
    , 441
    (1973).   Under the community caretaking function, "an officer
    may, when the need arises, stop individuals and inquire about
    their well-being, even if there are no grounds to suspect that
    criminal activity is afoot."    Commonwealth v. Knowles, 
    451 Mass. 91
    , 94-95 (2008).    See 
    id. at 95
     ("An officer may take steps
    that are reasonable and consistent with the purpose of his
    [community caretaking] inquiry, . . . even if those steps
    include actions that might otherwise be constitutionally
    intrusive").
    But "[a] noncoercive inquiry initiated for a community
    caretaking purpose may ripen into a seizure requiring
    constitutional justification."    Commonwealth v. Mateo-German,
    
    453 Mass. 838
    , 842 (2009).     See 
    id.
     ("A check by a police
    officer . . . falls within the scope of the community caretaking
    function when its purpose is to protect the well-being of the
    [individual] and the public -- and not when the purpose is the
    detection or investigation of possible criminal activity").
    See, e.g., Commonwealth v. Eckert, 
    431 Mass. 591
    , 595-596 (2000)
    (well-being check ripened into seizure when officer asked
    defendant to get out of vehicle and perform field sobriety tests
    16
    such that "it was reasonable for the defendant to conclude that
    he was no longer free to leave and that his cooperation with the
    trooper's investigation was no longer voluntary").
    Here, the record shows that the New Jersey officers had "an
    objectively reasonable basis for believing that the safety of an
    individual or the public [was] jeopardized," and their actions
    stayed within their community caretaking function.    Commonwealth
    v. Gonsalves, 
    445 Mass. 1
    , 9-10 (2005), abrogated on other
    grounds as recognized by Commonwealth v. Rand, 
    487 Mass. 811
    ,
    825 n.14 (2021), quoting Commonwealth v. Brinson, 
    440 Mass. 609
    ,
    615 (2003).   The officers' noncoercive inquiries centered on the
    well-being of the defendant, who appeared to be stranded, away
    from his home, without a cell phone, a wallet, or gasoline for
    the truck, and ill-dressed for the winter day.   Moreover, the
    defendant refused to identify himself and also exhibited
    behaviors indicating that he was disoriented or potentially
    experiencing a mental health crisis.
    The officers' actions and questions did not stray into a
    custodial investigation of criminal conduct; indeed, at the time
    they were questioning the defendant, they were unaware that he
    was wanted in connection with the victim's killing.    Cf.
    Knowles, 
    451 Mass. at 95-96
     (community caretaking function not
    implicated where "objective view of the actions of the officer
    leads to the conclusion that he was in fact conducting a
    17
    criminal investigation," motivated by search for evidence,
    rather than caretaking).   In these circumstances, the officers'
    attempts, including temporarily detaining the defendant, to
    ascertain the defendant's identity and to ensure he was not
    missing or wanted were reasonable.     See 
    id. at 95
     ("under
    community caretaking doctrine, officers may, without reasonable
    suspicion of criminal activity, approach and detain citizens for
    community caretaking purposes").     See, e.g., Commonwealth v.
    Evans, 
    436 Mass. 369
    , 376 (2002) ("This request for the
    defendant's license and registration was a minimal intrusion on
    the defendant's rights, outweighed by the trooper's
    responsibility to protect the public, through the community
    caretaking function, from a driver who may be unfit to continue
    driving").
    Because the officers' conduct did not ripen into a
    custodial investigation of criminal activity, the officers were
    not required to give Miranda warnings to the defendant.    See
    Commonwealth v. Kirwan, 
    448 Mass. 304
    , 309 (2007), quoting
    Commonwealth v. Jung, 
    420 Mass. 675
    , 688 (1995) ("Miranda
    warnings are only necessary for 'custodial interrogations'").
    See also Cady, 
    413 U.S. at 447-448
     (where officer's conduct
    falls within community caretaking function, no search or seizure
    in constitutional sense occurs); Evans, 
    436 Mass. at 372
    (interactions within community caretaking function "do not
    18
    require judicial justification").   Cf. Gonsalves, 
    445 Mass. at 9
    ("Questioning by law enforcement agents to secure a volatile
    scene or establish the need for or provide medical care is not
    colloquially understood as interrogation -- it is not commonly
    understood as related to the investigation or prosecution of a
    crime" [footnote omitted]).
    b.   Mental impairment instruction.   The defendant also
    maintains that the judge erred in denying his request for a
    mental impairment instruction.   However, as early as the hearing
    on the motion to suppress, defense counsel explained that the
    defendant did not want to pursue a defense based on mental
    impairment:
    "[W]e're in a situation with this case what defense [sic]
    we're going to go with; whether it's going to be a mental
    health or a reasonable doubt defense, if you will --
    identification. My client has indicated that he would
    rather go with the reasonable doubt identification
    defense."24
    The defendant then filed the motion in limine to "exclude
    evidence of the defendant's mental health diagnosis . . . [and]
    institutional commitments," which was "allowed generally."
    In turn, the prosecutor repeatedly affirmed that he "[did]
    not intend to get involved with" the defendant's mental health
    24 Appellate counsel represented that   his own investigation
    into the case revealed that the defendant   was competent to make
    this decision. See discussion, infra, on    a defendant's
    constitutional right to choose whether to   raise a mental
    impairment defense.
    19
    issues in his direct examination of witnesses and would not "ask
    those questions," in view of the ruling on the motion in limine.
    Before the New Jersey police officers testified, defense counsel
    noted:    "I know you have exclud[ed] references to [the
    defendant's] mental health diagnosis, so in advance of their
    testimony I would want to alert the court that I would be
    objecting to any answers regarding his mental health, or their
    opinion that he was having some mental health breakdown on that
    particular occasion."
    The defendant first requested the instruction after the
    Commonwealth had rested, arguing that the instruction was
    warranted principally in view of the New Jersey officers'
    testimony concerning the defendant's behavior on the day
    following the discovery of the victim's body.25   But even at the
    charge conference, defense counsel reiterated the defense
    strategy of challenging the Commonwealth's ability to meet its
    burden of showing, beyond a reasonable doubt, that the defendant
    was the person who killed the victim.    Defense counsel
    explained:
    25Specifically, defense counsel focused on "the booking
    photos, the appearance, his irrational statements during that
    . . . interaction with Mount Laurel [police department], his
    rants about being an employee of the Department of Interior but
    he doesn't get paid -- things of that nature," along with
    testimony that "he seemed to be acting irrationally or strangely
    to them."
    20
    "[E]ven though we're not arguing it, I think there's a lot
    of evidence of some sort of mental illness, if you will,
    that's kind of seeped into the case. Obviously, I've tried
    to keep . . . as much as possible out, but most of the
    evidence that's been admitted which would point to that
    would be through the [C]ommonwealth, really -- the voice-
    mails, the dash-cam cruiser video, and his statements, the
    booking photos, the behavior, the irrational statements.
    He drives until he runs out of gas[oline] -- I think there
    is some evidence of mental illness in this case. We didn't
    want it in and I'm not going to argue it, but I think the
    court is required to instruct the jury on it if there's
    facts in evidence that would justify an instruction."
    The prosecutor objected to the defendant's request for the
    instruction, contending that, based on the allowance of the
    motion in limine, he had "[done his] best to limit any
    [statements about any mental impairment] from the witnesses."
    Defense counsel responded that, while he had tried to keep out
    as much mental health evidence as possible, some evidence of the
    defendant's bizarre behavior, nonsensical statements, and
    disheveled appearance had been admitted.   The trial judge
    declined to give the instruction, explaining that there was
    insufficient evidence of mental impairment and that he "[did
    not] view mental impairment to be a live issue in this case."
    "[W]here evidence of the defendant's mental impairment is
    significant and where it is a critical aspect of [the
    defendant's] defense, the failure to instruct the jury that they
    could consider evidence of that impairment" is error.
    21
    Commonwealth v. Rutkowski, 
    459 Mass. 794
    , 799 (2011).26   To be
    entitled to a mental impairment instruction, "a defendant must,
    at a minimum, introduce evidence that such an impairment existed
    at the time of the conduct in question."   Commonwealth v.
    Santiago (No. 2), 
    485 Mass. 416
    , 426-427 (2020).   Here, at the
    defendant's own request, no evidence of mental impairment at the
    time of the killing was introduced.
    Moreover, although expert testimony is not required,27 see
    Santiago, 485 Mass. at 425, the evidence of the defendant's
    disheveled appearance on the day after the victim's body was
    found, his choice of summer clothing in winter, his
    confrontational manner with the New Jersey officers, his claimed
    unpaid employment with the Department of the Interior, and his
    otherwise "bizarre" or "odd" behaviors were not "significant"
    evidence of mental impairment.   Compare Commonwealth v. Doughty,
    
    491 Mass. 788
    , 800 (2023) (no mental impairment instruction
    26Evidence of a defendant's mental impairment "bears on the
    specific intent required for murder in the first degree based on
    deliberate premeditation," Commonwealth v. Gould, 
    380 Mass. 672
    ,
    682 (1980), and also on the defendant's "ability to make a
    decision in a normal manner," relevant to "whether the murder
    was committed with extreme atrocity or cruelty," 
    id. at 685-686
    .
    27In connection with his consideration of the requested
    instruction, the trial judge mentioned the failure of the
    defendant to offer any "formal opinion evidence." Of course, a
    mental impairment instruction can be warranted even in the
    absence of expert testimony. See Santiago, 485 Mass. at 425.
    Here, however, the judge was correct that the evidence presented
    was insufficient, as explained infra.
    22
    required based on testimony defendant was "odd," including
    strange behavior and statements after killing), with Rutkowski,
    
    459 Mass. at 796-799
     (mental impairment instruction required
    based on evidence of defendant's "long history of mental
    illness," including hospitalizations and diagnoses).
    Further, far from being a critical aspect of the defense,
    the defendant repeatedly made clear that he was not pursuing a
    mental impairment defense.   Rather, as discussed supra, he
    intended to focus the defense on challenging the prosecution's
    ability to meet its burden of proof in identifying him as the
    killer.   Even in closing argument, defense counsel did not
    mention mental impairment, instead raising questions regarding
    the prosecution's proof that the defendant was the killer.
    Compare Rutkowski, 
    459 Mass. at 799
     ("The sole defense in this
    case was lack of criminal responsibility and its closer
    relative, mental impairment").
    On this record, the trial judge did not abuse his
    discretion in declining to give a mental impairment instruction.
    c.    Certainty of fingerprint testimony.   The defendant
    contends that the Commonwealth's fingerprint analysis expert
    impermissibly suggested a level of scientific certainty
    regarding his testimony that the fingerprints found on the bag
    that covered the victim's head when the victim's body was found
    matched those of the defendant.   The defendant did not object to
    23
    the expert's testimony.   Accordingly, we examine the testimony
    to determine whether it was improper and, if so, whether it
    created a substantial likelihood of a miscarriage of justice.
    See Commonwealth v. Fulgiam, 
    477 Mass. 20
    , 43, cert. denied, 
    138 S. Ct. 330 (2017)
    .
    The defendant principally relies on a report published by
    the National Research Council from the National Academy of
    Sciences in 2009, which we previously have considered and have
    recognized evinces certain limitations of ACE-V28 fingerprint
    analysis -- the same framework employed by the expert in the
    present case.   See Commonwealth v. Gambora, 
    457 Mass. 715
    , 724-
    726 (2010), citing National Research Council, Strengthening
    Forensic Science in the United States, A Path Forward 102-104,
    136-145 (2009) (NAS report).29   "Ultimately, the [NAS] report
    28ACE-V stands for analysis, comparison, evaluation, and
    verification.
    29We explained that, although fingerprint evidence is not
    so unreliable that courts should no longer admit it, and "[t]he
    report does not appear to question the underlying theory . . .
    [that] there is scientific evidence supporting the theory that
    fingerprints are unique to each person and do not change over a
    person's life," Gambora, 
    457 Mass. at 724-725
    , citing NAS
    report, supra at 143-144 & n.34, the uniqueness of fingerprints
    does not "guarantee that prints from two different people are
    always sufficiently different that they cannot be confused, or
    that two impressions made by the same finger will also be
    sufficiently similar to be discerned as coming from the same
    source." Gambora, 
    supra at 724-725
    , quoting NAS report, supra
    at 144. The report "stress[ed] the subjective nature of the
    24
    focuse[d] on the need to prevent overstatement of the accuracy
    of fingerprint comparisons . . . ."    Gambora, 
    supra at 726
    .   In
    light of the NAS report, we gave the following guidance in
    Gambora:    "[t]estimony to the effect that a latent print
    matches, or is 'individualized' to, a known print, if it is to
    be offered, should be presented as an opinion, not a fact, and
    opinions expressing absolute certainty about, or the
    infallibility of, an 'individualization' of a print should be
    avoided."   
    Id.
     at 729 n.22.30   See Commonwealth v. Joyner, 
    467 Mass. 176
    , 183 n.9, 184-185 (2014) ("Gambora permits a
    fingerprint expert to opine on whether two fingerprint match,"
    judgments that must be made by the fingerprint examiner at every
    step of the ACE-V process," Gambora, 
    supra at 725
    , explaining:
    "ACE-V provides a broadly stated framework for conducting
    friction ridge analyses. However, this framework is not
    specific enough to qualify as a validated method for this
    type of analysis. ACE–V does not guard against bias; it is
    too broad to ensure repeatability and transparency; and
    does not guarantee that two analysts following it will
    obtain the same results. For these reasons, merely
    following the steps of ACE–V does not imply that one is
    proceeding in a scientific manner or producing reliable
    results."
    Gambora, 
    supra at 725-726
    , quoting NAS report, supra at 142.
    30 We noted "tension in the report between its assessments
    that, on the one hand, 'it seems plausible that a careful
    comparison of two impressions can accurately discern whether or
    not they had a common source,' . . . but that, on the other,
    'merely following the steps of ACE-V does not imply that one is
    proceeding in a scientific manner or producing reliable
    results.'" Gambora, 
    457 Mass. at
    729 n.22, quoting NAS report,
    supra at 142.
    25
    and "[t]he weight and credibility to be accorded the
    identification evidence . . . was for the jury to determine").
    Here, the Commonwealth's fingerprint expert framed his
    conclusions that the defendant' fingerprints matched those on
    the bag as "opinions" to a "reasonable degree of scientific
    certainty."31   See Gambora, 
    457 Mass. at
    729 n.22.   The opinions
    were not presented as facts or as infallible.   Compare Fulgiam,
    
    477 Mass. at 44-45
     (expert improperly testified "that
    individualization signifies that the print examiner has 'come[]
    to the conclusion that there is a sufficient amount of quality
    and quantity of those details between the latent print and the
    known fingerprint . . . to establish that the latent
    [fingerprint] originated from the known print" and that "on
    31After the date of the trial in the present matter, we
    clarified that, prospectively from the date of our decision, "an
    expert testifying to a fingerprint match must state expressly
    that the match constitutes the expert's opinion based on the
    expert's education, training, and experience"; "[i]t is not
    enough . . . for the expert to avoid testifying that the match
    is one hundred percent certain." Commonwealth v. Robertson, 
    489 Mass. 226
    , 238, cert. denied, 
    143 S. Ct. 498 (2022)
    . We
    suggested that the prosecutor ask "whether the witness has an
    opinion 'to a reasonable degree of fingerprint analysis
    certainty,'" analogizing to our holdings in ballistics cases
    (emphasis added). Id. at 238, citing Commonwealth v. Pytou
    Heang, 
    458 Mass. 827
    , 848 (2011). See Pytou Heang, 
    supra at 848-849
     ("expert may offer . . . opinion to a 'reasonable degree
    of ballistic certainty," but "[p]hrases that could give the jury
    an impression of greater certainty . . . should be avoided," and
    "[t]he phrase 'reasonable degree of scientific certainty' should
    also be avoided because it suggests that forensic ballistics is
    a science, where it is clearly as much an art as a science").
    26
    several occasions . . . she individualized fingerprints of the
    defendants to latent prints found at the scene of the crime"
    without "clearly fram[ing] the[] findings in the form of an
    opinion").
    The expert's description of the ACE-V process as a
    "scientific methodology" arguably verged on suggesting that the
    ACE-V process is more scientific than warranted.   Gambora, 
    457 Mass. at 726
    , quoting NAS report, supra at 142 ("merely
    following the steps of ACE-V does not imply that one is
    proceeding in a scientific manner").   While he clarified that
    the process involved a "subjective analysis," he coupled that
    statement with the assertion that ACE-V involved "an objective
    evaluation."32   See Joyner, 
    467 Mass. at
    181 n.6 (noting
    "subjective nature of the judgments that a fingerprint examiner
    makes in conducting each step of the ACE-V methodology").
    Still, viewed as a whole, his testimony on direct examination
    did not claim that the ACE-V process was infallible or
    absolutely certain, and his opinions based on the process were
    expressed as "opinions."
    32In response to the prosecutor's question whether an
    identification was "an opinion of the expert looking at the
    sample for the individualization," the expert said: "Yes.
    Well, it's a subjective analysis with an objective evaluation.
    Again, it's a scientific method."
    27
    The expert's testimony on cross-examination was more
    troublesome.    When asked by defense counsel whether fingerprint
    analysis was "a science like DNA," the expert answered that
    "[i]t is a science" and that he applied "a scientific
    methodology."   In response to defense counsel's inquiry
    regarding the subjective nature of the evaluation, the expert
    answered that "it's a subjective analysis which leads to an
    objective conclusion based on the -- over the 120 years of the
    fingerprint science."    And when defense counsel noted the NAS
    report's criticism of examiners "for placing a hundred percent
    infallibility, a zero error rate, . . . with respect to
    fingerprint examination," the expert responded:
    "The zero error rate attributed to examiners is kind of a
    fallacy. The zero error rate is more attributed to the
    ACE-V methodology, and whether or not the examiner applies
    it correctly. I would say that there is an error rate in
    the general field for the examiner, but it's on the
    examiner's end, it's not on the scientific methodology."
    This testimony suggested that ACE-V is a time-tested scientific
    methodology leading to an objective conclusion, as opposed to a
    framework that includes subjective aspects and as to which the
    NAS report has raised concerns.    See Gambora, 
    457 Mass. at
    724-
    725.   Although acknowledging that fingerprint examiners
    generally might make errors, the testimony suggested that the
    ACE-V methodology itself was error-free and arguably suggested
    that an examiner, who was faithful to the methodology, could
    28
    come to an infallible conclusion.   If elicited on direct
    examination, such testimony would have been error.   See
    Commonwealth v. Wadlington, 
    467 Mass. 192
    , 205 (2014) (would be
    error for prosecutor to elicit statement that "[i]f a
    fingerprint examiner trained in competency follows the
    scientific methodology of ACE-V, then the error rate should be
    zero").
    "Because this testimony occurred on cross-examination,
    however, and because there was no motion to strike, we identify
    no error in this testimony, much less an error sufficient to
    create a substantial likelihood of a miscarriage of justice."
    Commonwealth v. Drayton, 
    473 Mass. 23
    , 30 (2015), S.C., 
    479 Mass. 479
     (2018).   See Wadlington, 
    467 Mass. at 206
     ("there was
    no motion to strike, and . . . admission under the
    circumstances, particularly given the totality of the
    inculpatory evidence, did not create a substantial likelihood of
    a miscarriage of justice").
    "[A]s in Gambora, we note that the vigorous cross-
    examination of the analyst countered any possible misconception
    that individualization is infallible."   Fulgiam, 
    477 Mass. at 45
    .   Defense counsel, for example, elicited testimony from the
    expert regarding the NAS report's critique of fingerprint
    analysis as not being based in a statistical model; counsel also
    inquired about an incident in which the Federal Bureau of
    29
    Investigation erroneously identified a suspect in a 2004 train
    bombing in Madrid, Spain, based on a faulty fingerprint analysis
    using the ACE-V framework.   Moreover, the defendant presented
    his own expert, who disputed the Commonwealth's expert's
    opinions as to the fingerprints on the bag.
    Most importantly, "the Commonwealth's evidence linking the
    defendant[] to the crime, separate and apart from the
    fingerprint evidence, was strong."   Fulgiam, 
    477 Mass. at 45
    .
    The victim was last seen looking for the defendant, and
    subsequently picked up the defendant from a quick serve food
    establishment in his truck; a cup and receipt from the
    establishment were in the victim's home when the victim's body
    was found, along with the defendant's belongings, including his
    identification card, leather jacket, and cell phone.    There were
    no signs of forced entry in the victim's home, and the defendant
    was found with two sets of keys to the front door, which the
    killer seemingly locked from the outside.     On the morning of the
    day that the victim's body was found, the defendant was driving
    the victim's truck, which the victim had previously denied him
    permission to drive, and was looking for adhesive to reattach
    the sideview mirror, which was found later in the victim's home.
    The defendant left a note for his brother-in-law about the
    victim and fled the Commonwealth; when he was found in New
    Jersey, he admitted that the victim was upset with him over the
    30
    sideview mirror.   Given the strength of this evidence, the
    erroneous testimony did not create a substantial likelihood of a
    miscarriage of justice.33
    d.   Review under G. L. c. 278, § 33E.   The defendant argues
    that his mental health history, the evidence of which he has
    provided to us on appeal but was not introduced at trial, and
    the circumstances surrounding the killing warrant relief under
    G. L. c. 278, § 33E.   He contends that this was a minor
    controversy that exploded into a spontaneous killing of the
    victim, which cuts against premeditation, citing Commonwealth v.
    Baker, 
    346 Mass. 107
    , 110, 119 (1963) (allowing § 33E relief
    where "a minor controversy . . . explode[d] into the killing of
    a human being" and "the [defendant and the victim] were
    acquainted only slightly, if at all"), and Commonwealth v.
    Williams, 
    364 Mass. 145
    , 152 (1973) (allowing § 33E relief where
    defendant, who carried no weapon, reacted with violence when
    discovered in robbery intended to be nonviolent such that "[t]he
    entire sequence reflect[ed] spontaneity rather than
    premeditation").   He also maintains that a reduction in the
    33The evidence was strong as to both theories of murder in
    the first degree on which the defendant was convicted. The
    beating was astounding in nature, including fractured ribs,
    multiple blows, and the affixing of a bag over the victim's head
    with a belt, causing asphyxiation by strangulation, evidencing
    extreme atrocity or cruelty. And the placing of the bag on the
    head after the beating, while the victim was still living,
    evidenced deliberate premeditation.
    31
    degree of guilt is warranted based on his relationship with the
    victim and his mental illness, citing Commonwealth v. Seit, 
    373 Mass. 83
    , 94-95 (1977) (allowing § 33E relief where "no
    indication of animosity between [the defendant and the victim]
    until the episode in suit" and defendant may have acted in
    excessive self-defense or in passion upon provocation or sudden
    combat), and Commonwealth v. Concepcion, 
    487 Mass. 77
    , 95, cert.
    denied, 
    142 S. Ct. 408 (2021)
     (allowing § 33E relief where
    defendant was fifteen years old, functioned at level of ten year
    old, suffered from depression and posttraumatic stress disorder,
    and shot victim under pressure by members of gang).    The
    defendant directs the court to his mental health records,
    indicating a history of hospitalizations for mental health
    issues.
    The Commonwealth responds that the defendant's personal
    characteristics do not, by themselves, warrant a reduction, see
    Concepcion, 487 Mass. at 95 ("Mental illness alone is generally
    insufficient to support a verdict reduction under G. L. c. 278,
    § 33E . . ."), and the verdict as to premeditation is otherwise
    supported by the weight of the evidence, see Commonwealth v.
    Ruci, 
    409 Mass. 94
    , 98 (1991) ("a primary consideration is
    whether the killing reflects spontaneity rather than
    premeditation" [quotation and citation omitted]).
    32
    "Our duty is not to sit as a second jury but, rather, to
    consider whether the verdict returned is consonant with justice"
    (quotation and citation omitted).     Commonwealth v. Dowds, 
    483 Mass. 498
    , 512 (2019).     Baker and Williams are inapt; this is
    not a case in which "[t]he weight of the evidence . . .
    indicates murder in the second degree" because "[t]he entire
    sequence reflects spontaneity rather than premeditation."
    Williams, 
    364 Mass. at 151-152
    .     See Baker, 
    346 Mass. at 119
    ("justice will be more nearly achieved by concluding that the
    intention to shoot was formed in the heat of sudden affray or
    combat").    The circumstances of the patricide, shortly after
    reconciliation, do not affect the justness of the verdict.        The
    defendant struck the victim multiple times in the head and
    torso.     While the victim was still living, the defendant placed
    a garbage bag over his head and tied a belt around his neck,
    strangling him.    "The facts of this case do not even hint of
    spontaneity."    Ruci, 
    409 Mass. at 98
    .
    The defendant chose not to present to the jury an argument
    that his mental illness prevented him from forming the requisite
    intent, instead exercising his constitutional right to argue
    that the Commonwealth had insufficient evidence to prove him
    guilty beyond a reasonable doubt.     The defendant made this
    choice, and there is no suggestion that he was incompetent to
    make it.    See Commonwealth v. Velez, 
    487 Mass. 533
    , 544 (2021)
    33
    ("a competent defendant maintains autonomy over the decision
    whether to assert a mental health defense").   See also McCoy v.
    Louisiana, 
    138 S. Ct. 1500
    , 1505 (2018) ("it is the defendant's
    prerogative, not counsel's, to decide on the objective of this
    defense:   to admit guilt in the hope of gaining mercy at the
    sentencing stage, or to maintain his innocence, leaving it to
    the State to prove his guilt beyond a reasonable doubt");
    Commonwealth v. Miranda, 
    484 Mass. 799
    , 818-819, cert. denied,
    
    141 S. Ct. 683 (2020)
    , quoting Jones v. Barnes, 
    463 U.S. 745
    ,
    751 (1983) (under Sixth Amendment to United States Constitution
    and art. 12 of Massachusetts Declaration of Rights, "the
    defendant always retain[s] exclusive authority to make 'certain
    fundamental decisions' regarding his own defense, including
    whether to insist on his innocence or accept responsibility for
    a lesser offense").   We will not now undo this decision.
    After a review of the entire record, we discern no error
    warranting relief under G. L. c. 278, § 33E.
    Judgments affirmed.