Commonwealth v. Mark W. Thibeau.

Massachusetts Appeals Court·Decided August 6, 2025·No. 24-P-0652·Unpublished

Opinion

NOTICE: Summary decisions issued by the Appeals Court pursuant to M.A.C. Rule 23.0, as appearing in 97 Mass. App. Ct. 1017 (2020) (formerly known as rule 1:28, as amended by 73 Mass. App. Ct. 1001 [2009]), are primarily directed to the parties and, therefore, may not fully address the facts of the case or the panel's decisional rationale. Moreover, such decisions are not circulated to the entire court and, therefore, represent only the views of the panel that decided the case. A summary decision pursuant to rule 23.0 or rule 1:28 issued after February 25, 2008, may be cited for its persuasive value but, because of the limitations noted above, not as binding precedent. See Chace v. Curran, 71 Mass. App. Ct. 258, 260 n.4 (2008).

COMMONWEALTH OF MASSACHUSETTS

APPEALS COURT

24-P-652

COMMONWEALTH

vs.

MARK W. THIBEAU.

MEMORANDUM AND ORDER PURSUANT TO RULE 23.0

Following a jury trial in the Boston Municipal Court, the

defendant was convicted of assault and battery as a lesser

included offense of assault and battery by means of a dangerous

weapon (tree).1 The defendant moved for a new trial on the basis

of ineffective assistance of counsel, which was denied after a

nonevidentiary hearing. On appeal, the defendant argues that

erroneous jury instructions on self-defense created a

substantial risk of a miscarriage of justice and that the judge

erred in denying his motion for a new trial because he raised

substantial issues regarding trial counsel's failure to

investigate and discover evidence relating to the victim. The defendant also argues that the judge erred by denying his motion for a new trial without first holding an evidentiary hearing. We affirm.

Background. On the morning of February 15, 2019, Daniel Chaparro's older brother paid him a visit at his home in Jamaica Plain.2 Outside Daniel's front door, the two discussed an altercation that Daniel had earlier had with a neighbor. According to Daniel, the neighbor had "jumped" him as he was coming home with groceries, and he had reported the neighbor to the police. Daniel and the neighbor had "stay away" orders against each other and everyone in the neighborhood knew about the incident. As the defendant passed by the brothers conversing, he interjected something to the effect that Daniel should have a fair fight with the neighbor.

Because the defendant was "talking crap" to him, Daniel picked up his metal cane hanging on a fence and began walking. The defendant went around the corner out of sight and then returned carrying a "gigantic stick" or "tree branch," holding it "like a baseball bat, like he's going to swing." Daniel's brother got in the middle and said to the defendant, "No, no, he doesn't want to fight" and "Leave it alone. It's over." The

defendant pushed Daniel's brother out of the way in an effort to reach Daniel.3 As the defendant continued to swing the branch, another neighbor came up from behind the defendant and knocked the branch out of his hand. The defendant ran away but then returned with yet another stick. At this point, Daniel called the police.

The defendant presented no evidence at trial but pursued a theory of self-defense.

Discussion. On appeal, the defendant contends that the judge erred in denying, without an evidentiary hearing, his motion for a new trial, which was based on ineffective assistance of counsel. Because the judge who denied the motion was not the trial judge and did not hold an evidentiary hearing, we review the judge's ruling de novo. Commonwealth v. Mazza, 484 Mass. 539, 547 (2020).

A motion for a new trial may be granted "at any time if it appears that justice may not have been done." Mass. R. Crim. P. 30 (b), as appearing in 435 Mass. 1501 (2001). Such a motion may be denied without an evidentiary hearing when no substantial issue is raised. See Mass. R. Crim. P. 30 (c) (3), as appearing in 435 Mass. 1501 (2001). In determining whether the defendant raised a substantial issue, the judge will consider the

seriousness of the issue asserted and the adequacy of the defendant's showing on that issue. Commonwealth v. Stewart, 383 Mass. 253, 257-258 (1981).

Here, the defendant's motion for a new trial was premised on a claim of ineffective assistance of counsel at trial. In order to make out a claim for ineffective assistance, the defendant must show that trial counsel's performance fell measurably below what is expected of an ordinary fallible lawyer and that such substandard performance deprived the defendant of an otherwise available and substantial ground of defense. Commonwealth v. Saferian, 366 Mass. 89, 96 (1974). The defendant raised two grounds of ineffective assistance in his motion: (1) the failure to object to an allegedly erroneous jury instruction on self-defense and (2) the failure to investigate and discover evidence relating to the nontestifying victim.

1. Witness investigation. The defendant claims that trial counsel rendered ineffective assistance by failing to investigate and uncover the criminal record of Daniel's brother, the victim of the assault and battery. He argues that, even though Daniel's brother did not testify, his significant criminal record could have been used to impeach him as the declarant of hearsay statements. See Commonwealth v. Mahar, 430 Mass. 643, 649-650 (2000) (hearsay declarant may be impeached by

any evidence admissible if declarant had testified). Given that the statements consisted of "No, no, he doesn't want to fight" and "Leave it alone. It's over," it is unclear what value such impeachment would carry, particularly in light of the video recording evidence of the crime.

Likewise, the defendant's claim that the criminal background information of Daniel's brother could have been used to support the theory that both Daniel and his brother were the first aggressors might have some force, if it were not for the strength of the video recording evidence. See Commonwealth v. Adjutant, 443 Mass. 649, 654 (2005) (victim's violent character relevant to establishing first aggressor in claim of self- defense). Thus, even if trial counsel's performance was to be deemed substandard for failing to investigate the criminal background of a nontestifying victim, the defendant failed to establish that he was deprived of an otherwise available ground of defense.

2. Jury instructions on self-defense. The defendant argues that the judge deviated from the model jury instructions in a manner that shifted the burden of proof on self-defense and failed to guide the jury's consideration of factors relevant to self-defense. Where no objection to the instructions was raised at trial, we review for a substantial risk of a miscarriage of justice. See Commonwealth v. Russell, 439 Mass. 340, 345 (2003)

(motion for new trial premised on unobjected-to instructions —- whether based on error itself or framed as claim of ineffective assistance of counsel —- reviewed solely to determine whether error gives rise to substantial risk of miscarriage of justice).

Here, the judge prefaced the instructions on the elements of the crimes with the following:

"In this particular case, the defendant has raised the claim that if, in fact, he used any force, he was acting in self-defense. . . . And I will explain to you in greater detail that it's not up to the defendant to prove that he acted in self-defense because, you remember, the Commonwealth has the burden of proof. So when a claim of self-defense is raised under our system of law, it is the Commonwealth who has the burden of establishing that beyond a reasonable doubt that the defendant was not entitled to use force in these circumstances because in order to use force, certain conditions have to be met."

Later, after instructing on the elements of the crimes, the judge returned to self-defense:

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Commonwealth v. Mark W. Thibeau., (Mass. Ct. App. 2025).

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