A former Stoughton police detective, Matthew Farwell, has been convicted of murdering Sandra Birchmore, who was pregnant at the time of her death. The conviction stems from allegations that Farwell had previously sexually abused Birchmore when she was 15 years old, and he killed her to prevent her from disclosing this information.
A former police officer, identified as 41-year-old Farwell, was convicted of strangling Birchmore in his Canton, Massachusetts apartment on February 1, 2021. The incident occurred 12 days after a confidential informant reported to the Boston suburban police department, where Farwell was employed, that he had engaged in an inappropriate relationship.
Birchmore, who was 23 years old at the time of his death, had a complex history with the detective, dating back to their initial encounter in a youth program at the Stoughton Police Department during his childhood.
Prosecutors alleged that Farwell manipulated the crime scene to create the appearance of a suicide, which he successfully achieved. Initially, investigators from the Massachusetts State Police determined that Birchmore had taken his own life. However, the FBI launched an investigation two years later and ultimately concluded that the circumstances suggested a homicide.
Prosecutors in the case have expressed significant disappointment with the initial police inquiry, asserting that investigators failed to thoroughly pursue leads and prematurely concluded their investigation.
FBI Special Agent in Charge Ted Docks emphasized that justice requires unwavering commitment, rather than deference, convenience, or the protection of those in positions of authority. He underscored that no title, office, or badge can exempt individuals from accountability to the law.
Detective Farwell's legal team acknowledged an extramarital relationship between the married detective and Birchmore, asserting that it commenced when Birchmore was 16 years old, a legal age for consent in Massachusetts.
Prosecutors contended that Birchmore had made previous statements indicating a desire to end his life, and that he ultimately took his own life after returning to his apartment to conclude the relationship.
A U.S. District Court Judge has set a verdict date of February 3, 2027, for Farwell's case. Following an arrest in August 2024, Farwell is facing a mandatory life imprisonment sentence.
A month-long trial, featuring testimony from approximately 50 witnesses and presentation of over 500 pieces of evidence, was held in a federal court in Boston. The proceedings were necessitated by the local prosecutor's office, which had declined to file criminal charges in the case.
The Federal Bureau of Investigation initiated an investigation into Birchmore's death in 2023, prompted in part by a request from a former deputy with the Stoughton Police Department. This former deputy had led an internal inquiry into Farwell following a prior complaint lodged with the department, which predated Birchmore's death.
A federal investigation has found that the initial local inquiry into Farwell's death was conducted in a rushed and inadequate manner. The inquiry consisted of a 15-minute interrogation in a parking lot, during which no notes were taken, a thorough examination of Farwell's injuries was not conducted, and no DNA samples were collected. Furthermore, police did not review Farwell's phone until after he had deleted text messages sent by Birchmore.
A comprehensive FBI investigation uncovered a significant number of text messages, totaling approximately 40,000, exchanged between Farwell and Birchmore. The messages revealed a disturbing pattern, including instances where the individuals recalled engaging in intimate activities when Farwell was 27 years old and Birchmore was 15, a age at which she was legally incapable of providing consent under Massachusetts law.
The messages revealed a deteriorating dynamic in their relationship, with Birchmore exerting pressure on Farwell to end her pregnancy and threatening to disclose their relationship to her wife.
