Former Police Officer Matthew Farwell Found Guilty of Killing Pregnant Sandra Birchmore

A former Massachusetts police officer has been found guilty of killing 23-year-old Sandra Birchmore and causing the death of her unborn child in a case that exposed years of alleged sexual exploitation and serious failures in the original investigation. On November 10, 2026, a federal jury in Boston convicted Matthew Farwell, 41, of both charges after a nearly month-long trial. The verdict came more than five years after Birchmore was found dead in her apartment, with her death initially classified as a suicide.

Birchmore met Farwell through the Stoughton Police Department’s Explorer program, which introduced young people to law enforcement careers. Prosecutors said Farwell began sexually exploiting her when she was just 15 and he was 27. Their relationship allegedly continued for years, including after Farwell married and started a family. By late 2020, Birchmore had discovered she was pregnant. Both she and Farwell initially believed he was the father, and prosecutors said tensions surrounding the pregnancy and the possibility that their relationship would be exposed contributed to the events leading up to her death.

On February 1, 2021, Birchmore was found dead inside her Canton apartment, with a strap around her neck. Authorities initially ruled her death a suicide. However, a later FBI investigation uncovered evidence that led federal prosecutors to accuse Farwell of strangling her and staging the scene to make it appear that she had taken her own life. Surveillance footage showed him entering her apartment building shortly after 9 p.m. and leaving about half an hour later. Investigators also examined thousands of messages exchanged between the two, along with digital and forensic evidence. Prosecutors argued that Farwell killed Birchmore to prevent her from revealing his alleged sexual abuse and other potential federal offenses.

The defense disputed that account, maintaining that Birchmore died by suicide and that Farwell had visited her apartment to end their relationship. Farwell pleaded not guilty and did not testify at trial. One of the most significant developments involved the pregnancy: DNA testing established that another man, Jason Pickard, was the biological father of the unborn child, despite Birchmore and Farwell having believed otherwise. Medical experts also offered conflicting testimony about Birchmore’s injuries and cause of death. After hearing from approximately 50 witnesses and reviewing hundreds of exhibits, jurors deliberated for nearly two days before reaching their guilty verdict.

The conviction followed years of questions about how Birchmore’s death was originally investigated. Federal authorities reopened the case after witnesses came forward with information, and Farwell was arrested and charged in 2024. The case also drew scrutiny toward the Stoughton Police Department and the way its youth program had been managed. Birchmore’s family welcomed the verdict, although the outcome cannot undo the loss of a young woman whose loved ones said she had been looking forward to becoming a mother and pursuing a career in nursing.

Farwell now faces a mandatory life sentence under the federal charges, with sentencing scheduled for February 3, 2027. The verdict marks a major legal milestone in a case that began with a death initially believed to be a suicide and ended with a federal jury finding a former police officer responsible for Birchmore’s death and the loss of her unborn child.