The Norfolk District Attorney's office declined to charge anyone in the Sandra Birchmore case after medical examiner Dr. María del Mar Capó-Martínez ruled the death a suicide. At Matthew Farwell's federal trial, she testified the police paperwork arriving with Sandra's body had already presented her death as a suicide, no foul play involved.
She testified her office never got a call to the apartment. Prosecutors say she never learned about Farwell's texts with Sandra, or about video of him going in and out of Sandra's building.
Farwell, once a Stoughton police detective, pleaded not guilty in the deaths of Sandra Birchmore and her unborn child.
In April 2026 the doctor amended her ruling to undetermined. According to prosecutors, the original ruling came too early and relied on misinformation, but Farwell's lawyers claim federal prosecutors leaned on her to change it.
Defense Diaries host Bob Motta and former FBI agent Robin Dreeke help me trace how early the word "suicide" got locked in.
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