COMMONWEALTH vs. GLENN R. ARMSTRONG.

WENDLANDT, J. The defendant, Glenn Armstrong, was convicted of murder in the first degree on the theories of deliberate premeditation and extreme atrocity or cruelty in connection with the January 2017 killing of his eighty-three year old father, Walter Armstrong. [Note 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 side-view 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 side-view 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 side-view mirror.

In this direct appeal, the defendant maintains that the motion judge erred in denying his motion to suppress evidence 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.

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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; [Note 2] no one answered the door, and the victim's truck was not in the carport. [Note 3] There were no signs of forced entry; the doors to the house were locked, and the windows were secured. [Note 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. [Note 5] Next to the victim were his wallet, which did not appear to be missing any 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 glasses [Note 6] and a side-view mirror from the victim's truck. [Note 7] Near the kitchen sink was a cup

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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 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. [Note 8] The victim generally did not allow others to drive his truck, and at least once, the defendant had asked to borrow the victim's truck, but the victim had refused. [Note 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

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home. [Note 10] The truck had no visible damage. The victim happily greeted a delivery driver from "Meals on Wheels," engaging in "light-hearted banter." [Note 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. [Note 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 he 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.

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 side-view mirror. The brother-in-law was not there. [Note 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 had left the victim's truck. The truck was missing its side-view mirror. The

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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 phone [Note 14] 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. [Note 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.

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 side-view 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. The defendant

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was sentenced to life without parole. [Note 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. [Note 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 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. [Note 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

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that the defendant "made her feel uncomfortable." [Note 19]

Ricigliano knocked on the door of the motel lobby bathroom, and the defendant emerged, left the lobby area, and departed 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." [Note 20] Ricigliano "directed the defendant to sit down near [the victim's] truck at one point because he was becoming agitated and irrational." [Note 21] Ricigliano then entered the truck's license plate number into his

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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. [Note 22] The interaction lasted approximately twenty minutes, from when Ricigliano arrived on the scene to when he arrested the defendant. [Note 23]

ii. Analysis. Law enforcement officers sometimes are called upon to engage in duties "in which there is no claim of 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 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").

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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 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

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occurs); Evans, 436 Mass. at 372 (interactions within community caretaking function "do not 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." [Note 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 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. [Note 25] But even at the charge conference,

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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:

"[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 voicemails, 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. Commonwealth v. Rutkowski, 459 Mass. 794, 799 (2011). [Note 26] To be entitled to a mental impairment instruction, "a defendant must, at a minimum, introduce

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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, [Note 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 required based on testimony that 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

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victim's head when the victim's body was found matched those of the defendant. The defendant did not object to 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-V [Note 28] 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). [Note 29] "Ultimately, the [NAS] report 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'

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of a print should be avoided." Id. at 729 n.22. [Note 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," 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." [Note 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 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

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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." [Note 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."

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 come to an infallible conclusion. If elicited on direct examination,

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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 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 side-view mirror, which was found later in the victim's home. The defendant left a note for his

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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 side-view mirror. Given the strength of this evidence, the erroneous testimony did not create a substantial likelihood of a miscarriage of justice. [Note 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 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

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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]).

"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) ("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

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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.