FBI Agent Testifies in Trial of Sandra Birchmore's Alleged Killer

• FBI agent Heidi Kelsch testified about the recovery of tens of thousands of text messages between Farwell and Birchmore.
• The trial involves former Stoughton police officer Matthew Farwell, accused of killing Sandra Birchmore in 2021.
• Farwell is alleged to have killed Birchmore to hide a sexual relationship that began when she was a minor.
• Testimony resumed on Monday in the ongoing trial.
• The trial is currently in its phase where Farwell's defense and prosecution are presenting their cases.