Testimony Begins in Trial of Ex-Cop Accused of Killing Pregnant Woman He Groomed

Key points

• Testimony began Tuesday in the federal trial of Matthew Farwell, former Stoughton police officer, at the John J. Moakley Courthouse in Boston.
• Prosecutors allege Farwell groomed Birchmore starting when she was 13 in the police Explorers program, initiating sexual contact when she was 15 and he was 27.
• Farwell is charged with killing Birchmore and her unborn child after she became pregnant and threatened to expose their relationship to his wife.
• Defense attorney Kimberly Stevens argues Birchmore died by suicide after Farwell broke up with her, citing her mental health struggles and financial instability.
• Witnesses including Birchmore’s former employer and property manager testified she was excited about her pregnancy and showed no signs of distress or suicide intent.
• The medical examiner changed Birchmore’s cause of death from suicide to undetermined in April 2026 after public pressure and federal investigation.

Background

The case gained national attention after years of public pressure from Birchmore’s family and friends, who rejected the initial suicide ruling. A separate internal affairs investigation by the Stoughton Police Department found Farwell had shared hundreds of explicit messages with Birchmore and that at least two other officers, including his twin brother William Farwell, had inappropriate relationships with her. All three resigned in August 2022. The trial follows recent high-profile Massachusetts criminal cases, including those of Lindsay Clancy and Karen Read, drawing widespread media scrutiny.

How outlets are covering it

CBS News and CNN emphasize the prosecution’s narrative of grooming and exploitation, with CBS highlighting Birchmore’s friend’s testimony that she was 'thrilled' about her pregnancy. CNN details the stark contrast between opening statements, with prosecutors describing Farwell as a predator and defense portraying Birchmore as a vulnerable, suicidal young woman. NBC Boston provides live updates on witness testimony, including Birchmore’s employer and property manager, who described her as excited and kind. The Boston Herald focuses on the defense’s legal challenge, arguing prosecutors acted in bad faith by seeking testimony on Farwell’s other affairs to rebut the mask-wearing defense. Outlets differ in emphasis: CBS and CNN focus on the emotional and evidentiary aspects of the trial, while NBC Boston provides procedural updates, and the Boston Herald highlights legal disputes over evidence admissibility.

Why it matters

The trial highlights systemic failures in police oversight and the long-term impact of grooming on vulnerable youth. It also raises questions about the reliability of initial suicide rulings and the role of public pressure in reopening cases. The outcome could influence federal standards for prosecuting law enforcement officers involved in sexual misconduct and homicide.

What to watch

The trial is expected to last about five weeks, with more witnesses scheduled to testify, including Farwell’s alleged affairs and Birchmore’s family members. The jury will deliberate after closing arguments, with a verdict expected in late November or early December. Farwell faces life in prison if convicted.