Taylor v. Medeiros, 983 F.3d 566

Roderick Taylor was tried May–July 2008 and convicted of second‑degree murder; judge imposed mandatory life imprisonment.
Commonwealth evidence: Martin McCray testified Taylor confessed; phone records and two distinct bloodstains (one with Taylor's DNA, one with the victim's) tied Taylor to the scene; victim's burned body found in Franklin Park.
Defense theory: McCray was the killer; McCray broke down emotionally during cross‑examination.
Prosecutor's ~60‑minute closing: called the defense theory a "bald‑face lie," told jurors that crediting that theory would "violate the oath" they took, disparaged defense counsel, said "it doesn't get any better than that" about DNA, and remarked only the defendant knew his location when certain calls were made.
Trial judge gave an immediate curative instruction and charged the jury that verdict must be based on evidence alone; the Massachusetts SJC found two remarks ("bald‑face lie" and "violated the oath") improper but harmless given instructions and the strong evidence.
Taylor filed federal habeas under AEDPA claiming due‑process violation from prosecutorial misconduct; district court denied relief and the First Circuit affirmed, holding the SJC reasonably applied Supreme Court precedent.

Issue	Plaintiff's Argument (Taylor)	Defendant's Argument (Commonwealth/Medeiros)	Held
Prosecutorial attacks on defense/theory ("bald‑face lie", insults)	Remarks accused defense counsel of fabrication and poisoned jury; require new trial.	Remarks were rhetorical, responsive to defense, and within permissible advocacy.	SJC reasonably found some wording ill‑advised but not so prejudicial to violate due process; no new trial.
Impermissible pressure via juror‑oath comment ("you will have violated the oath")	Comment coerced verdict and appealed to civic duty to convict.	Isolated, immediately cured by judge's instruction telling jurors to decide on evidence alone.	Statement improper, but curative instruction and context made error harmless under Darden.
Prosecutor's expression of personal opinion about evidence ("It doesn't get any better than that")	Meant to express prosecutor's belief in guilt.	Was a comment on the probative strength of DNA evidence, not an assertion of personal certainty about guilt.	SJC reasonably treated it as permissible comment on persuasiveness of evidence.
Implicit comment on defendant's silence/location ("Nobody does except for the defendant")	Improperly commented on Taylor's failure to testify.	Context shows comment targeted the evidence (cell‑site records contradicting Norwood alibi), not defendant's silence.	SJC reasonably concluded it was an evidence‑based remark, not a forbidden comment on silence.

Darden v. Wainwright, 477 U.S. 168 (1986) (due‑process test: prosecutorial remarks warrant new trial only if they so infect trial with unfairness as to deny due process)
Donnelly v. DeChristoforo, 416 U.S. 637 (1974) (prosecutorial remarks examined under due‑process standard)
Young v. United States, 470 U.S. 1 (1985) (prosecutor may not exert impermissible pressure on jurors; limits on argument)
Berger v. United States, 295 U.S. 78 (1935) (prosecutor should prosecute vigorously but must refrain from improper methods)
Griffin v. California, 380 U.S. 609 (1965) (prohibition on commenting on defendant's failure to testify)
Parker v. Matthews, 567 U.S. 37 (2012) (Darden standard is general and case‑by‑case; courts have leeway)
Harrington v. Richter, 562 U.S. 86 (2011) (AEDPA requires state‑court rulings to be objectively unreasonable to warrant habeas relief)
Commonwealth v. Taylor, 14 N.E.3d 955 (Mass. 2014) (SJC: two prosecutor remarks were improper but harmless given instructions and strong evidence)
Taylor v. Medeiros, 381 F. Supp. 3d 110 (D. Mass. 2019) (district court denied habeas, agreeing SJC's harmless‑error conclusion was reasonable)