Ex-Massachusetts Detective Convicted in Sandra Birchmore Case

A former Massachusetts detective, Matthew Farwell, has been found guilty of killing Sandra Birchmore. Her death, initially ruled a suicide, was later reopened by federal investigators. Farwell, who previously served with the Stoughton Police Department, was convicted of killing Birchmore, aged 23, who was pregnant at the time of her death in February 2021.

Prosecutors asserted that Farwell strangled Birchmore and staged the scene to mimic a suicide. He was convicted on federal charges of killing a witness or victim and causing the death of an unborn child. The conviction represents a significant turnaround from the initial ruling of suicide by authorities. Federal investigators took over, leading to Farwell’s arrest in 2024.

Jury Verdict and Trial Details

Farwell faced federal charges, as there were no state murder charges filed. Prosecutors had the responsibility of proving his involvement in Birchmore’s death. He could receive a life sentence, with sentencing slated for February.

The jury, initially deadlocked, delivered a guilty verdict after deliberations. They reported their standstill to U.S. District Judge Denise Casper but reached a conclusion the following day.

Prosecutors argued that Farwell’s motive was to prevent Birchmore from disclosing their relationship and his abuse. Farwell and Birchmore met through a police program when she was 15, and he was 27.

Farwell’s defense maintained her death was a suicide, not murder. New evidence suggested Birchmore, believing Farwell was the father of her child, had DNA evidence revealing otherwise.

Sandra Birchmore’s Background

Birchmore joined the Stoughton Police Explorers in 2010, meeting Farwell in 2012. Their relationship turned sexual when she was 15, and he was a police officer. She died in her apartment in Canton, Massachusetts. Her death’s initial classification as suicide delayed Farwell’s charge until 2024.

Following Farwell’s conviction, Birchmore’s family criticized the original authorities’ handling of the case and commended federal investigators for their efforts. They expressed gratitude to the FBI for revisiting the investigation, while highlighting the lack of action by the Massachusetts State Police.

They also criticized Norfolk County District Attorney Michael Morrissey and prosecutor Lynn Beland for not prosecuting Farwell, citing their constraints under the original suicide ruling. Morrissey’s office responded, emphasizing the limits placed by the initial classification.

Matthew Farwell’s Family and Lawsuit Implications

During his relationship with Birchmore, Farwell was married. His twin brother, William Farwell, also testified during the trial. Provided immunity, William admitted to sexual relations with Birchmore, among other officers linked to the case.

Following the criminal trial, attention shifted to a wrongful-death lawsuit. Filed by Birchmore’s aunt, Darlene Smith, the lawsuit targets Matthew and William Farwell, Robert Devine, the Town of Stoughton, and its police department. Steven Marullo, representing Birchmore’s estate, managed the lawsuit, which is now proceeding after the federal case.

Newsweek sought Marullo’s comments on the verdict, potential further accountability, and the lawsuit’s implications. Farwell’s conviction concluded more than five years after Birchmore’s death and two years post-arrest.