What we know about Matthew Farwell's connection with Sandra Birchmore

churches, NBC 10 Boston starts right now. This morning, a former police detective in Stoughton is charged with killing a pregnant woman, and we are learning new details about his connection to that woman, Sandra Birchmore, NBC 10. S Alysha Palumbo outside live right now in Stoughton Police Department. Alysha, this arrest has been years in the making. That's right. Raul this has been an investigation that's been ongoing for three years, starting with an internal investigation here at Stoughton Police and then the FBI investigation. And as this cell phone video shows, it culminated in this SWAT team arrest Wednesday morning, a former Stoughton Police detective, Matthew Farwell. Investigators allege Farwell had an ongoing illegal sexual relationship with Sandra Birchmore starting when she was just 15 years old. The two met when Birchmore was in a Youth Explorers program that Farwell was running. Prosecutors now allege the married detective fatally strangled Birchmore in her Canton apartment in 2021, amid claims that he was the father of her unborn child. Investigators say they now believe that Farwell staged the 23 year old's death to look like a suicide. Matthew Farwell's gun and badge did not grant him authority to violate the Constitution, and it certainly didn't entitle him to sexually exploit, abuse and rape a child before killing her and her unborn baby in an attempt to cover up his alleged crimes. And he used his knowledge and experience as a law enforcement officer to stage her death to look like a suicide. He allegedly attempted to cover his tracks to literally try and get away with murder, and he almost did, for Farwell is now charged with one count of killing a victim or witness. He faces a minimum of life in prison if