Commonwealth v. Foxworth, 40 N.E.3d 1003

Foxworth was convicted of deliberately premeditated murder and conspiracy to commit murder in a contract killing for Brescia; Brescia hired him to kill the victim who was having an affair with Brescia's wife.
Brescia communicated by pay phone and paid the defendant in December 2005; surveillance and meetings occurred at the defendant's and Brescia's locations.
Brescia's wife, the victim's relationship with Brescia's wife, and Brescia's divorce-related motivations framed the motive; multiple confrontations preceded the murder.
An inmate, held with Foxworth at Old Colony, provided information to authorities; Foxworth allegedly sought to benefit the inmate by aiding in bail reductions and other favorable treatment; the inmate’s information was corroborated by police and other records.
The defense moved to suppress statements the inmate obtained from Foxworth as alleged government agent, challenged spousal testimony, challenged admission of prior incarceration, and complained of closing argument and immunized-witness instructions; the trial court denied suppression and admitted the contested evidence.
Convictions affirmed; the court declined to grant a new trial or reduce the degree of guilt.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether the inmate was an agent of the Commonwealth for purposes of the Sixth Amendment/Article 12.	Foxworth contends implicit agency existed; the inmate sought benefits and was coached.	Commonwealth argues no agency or promise existed; informant acted independently.	No agency; suppression affirmed.
Whether Brescia's wife could testify about private conversations under spousal disqualification.	Brescia's wife testimony violated the statute.	Presence of children or non-private nature negates disqualification.	No error; not private conversations.
Whether admitting Foxworth's prior incarceration was an abuse of discretion.	Prior sentence is probative of motive and credibility.	Prejudice outweighed by probative value; could mislead jurors.	Admissible; no abuse of discretion.
Whether the prosecutor’s closing remark about the inmate obtaining details from the only living witness improperly commented on Foxworth's failure to testify.	Statement impermissibly highlighted Foxworth's silence.	Context shows details came from the inmate and not from Foxworth.	Not error; reasonable jury would view it as citing the inmate's sources, not Foxworth's silence.
Whether the immunized-witness instruction adequately guarded against overreliance on immunized testimony.	General credibility instruction insufficient to guard against vouching.	Instruction conformed to Dyous and was adequate given impeachment.	Instruction adequate; no error.

Commonwealth v. Murphy, 448 Mass. 452 (Mass. 2007) (Sixth Amendment/Art. 12 protections against eliciting statements from an immunized witness; indirect interrogation)
Commonwealth v. Reynolds, 429 Mass. 388 (Mass. 1999) (Agency through promises or cooperation; implied agency considerations)
Commonwealth v. Harmon, 410 Mass. 425 (Mass. 1991) (Agency analysis; conduct by government agents may establish agency relationship)
Commonwealth v. Rancourt, 399 Mass. 269 (Mass. 1987) (Agency and promises required for government involvement in cooperation testimony)
Commonwealth v. Dyous, 436 Mass. 719 (Mass. 2002) (Immunized-witness instruction framework and sufficiency of jury instructions)
Commonwealth v. Flebotte, 417 Mass. 348 (Mass. 1994) (Prejudicial error standard for admission of prior incarceration evidence)