Thelma Tatten, 56, was shot and killed on the morning of Thursday, June 6, 2024, in Bedford, Massachusetts. A longtime area resident and a 36-year employee of the Massachusetts Medical Society, Tatten lived in Bedford after previously living in Waltham; she is remembered as a mother, grandmother and partner who enjoyed laughing and spending time with family and friends.

The shooting occurred while Thelma and her partner of 26 years, Mark Cavallaro, 56, were in a car on Washington Street with their 24-year-old daughter, Jessica Cavallaro. Thelma was pronounced dead at the scene; Mark was taken to a hospital with life-threatening injuries and died later the same day. Investigators recovered a handgun at the scene. Jessica Cavallaro was arrested and charged with two counts of murder, assault and battery with a dangerous weapon, and illegal possession of a firearm; she was ordered held without bail and a psychiatric evaluation was ordered for her.

The motive for the double homicide remains under investigation. If anyone knew Thelma, Mark or Jessica or witnessed anything on Washington Street that morning, please come forward with information.