Sandra Birchmore — Death in Massachusetts 2021

Sandra Birchmore, born in 1997, grew up in Stoughton, Massachusetts, raised by a chronically ill single mother. At age 12 she joined the Stoughton Police Explorers youth program, where she met local police officer Matthew Farwell. What began as mentorship evolved, according to federal prosecutors, into systematic sexual abuse that prosecutors allege began when Sandra was 15 and Farwell was 27.

Childhood and the Three Officers

Sandra Birchmore grew up marked by neglect and instability after her mother's death in 2016. Farwell presented himself as a protective mentor, but federal prosecutors allege he exploited his position to sexually abuse her for nearly a decade, including while on duty. His twin brother, William Farwell, and their supervisor, Robert Devine, were also later named in a civil lawsuit filed by Sandra's family. Matthew Farwell is described by prosecutors as the primary perpetrator, maintaining a sexual relationship with Sandra well into her adult life.

Found Dead — and the Controversial Conclusion

On February 4, 2021, Sandra Birchmore was found dead in her apartment in Canton; she had died three days earlier, on February 1. Local authorities initially ruled the death a suicide by asphyxiation, and in 2022 the Norfolk County District Attorney said the investigation had found no evidence of foul play. But details in the case soon began to raise doubts: Sandra was pregnant at the time of her death, and according to people close to her, she had shown no signs of suicidal ideation. She had reportedly told friends she believed Farwell was the father.

FBI Corruption

The Pregnancy and Hennessy's Role

Sandra had told friends she believed Farwell was the father of her unborn child, but a posthumous paternity test in 2025 excluded him. Federal prosecutors nonetheless allege Farwell killed her to prevent her from exposing the abuse, pointing to surveillance footage that shows him entering her building the evening before she was found and leaving about 30 minutes later.

The Senate Investigation

Sandra's family filed a wrongful death lawsuit against Matthew Farwell, William Farwell and Robert Devine in December 2022, accusing the Town of Stoughton and its police department of negligent hiring and supervision. They allege Sandra had been the victim of child sexual abuse by all three men, and that the original suicide ruling should never have been accepted without closer scrutiny.

Police Corruption in the USA

The Question of Suicide or Murder

For years, the central point of contention in the case was whether Sandra Birchmore took her own life or was killed. Her family and attorneys maintained that she was not at risk of suicide and that the circumstances surrounding her death were inconsistent with a suicide ruling. Federal investigators ultimately reached the same conclusion.

In August 2024, federal prosecutors indicted Matthew Farwell for murder. His trial is scheduled for October 2026; prosecutors have said they will not seek the death penalty. In December 2025, Robert Devine was decertified by the state's police oversight board, barring him from ever serving as a police officer in Massachusetts again.

Unsolved Deaths in the USA

Legacy and Public Attention

The Sandra Birchmore case has received enormous media coverage across the United States and has become a symbol of what critics describe as a local police department's failure to protect a vulnerable young woman from officers it was supposed to supervise. A Dateline NBC episode on the case aired in September 2025. Sandra's family has pushed for accountability since her death, including through the 2022 wrongful death lawsuit.

The case raises fundamental questions about how police departments vet and supervise officers who mentor young people, and whether victims of abuse by law enforcement can expect justice when the system itself failed to protect them for years.