Sergeant Michael C. Chesna, a 6 year veteran of the Weymouth Police Department who was shot and killed after responding to reports of an erratic operator near South Shore Hospital. Upon arrival, he observed the vehicle had crashed and the driver was vandalizing a home nearby. Sergeant Chesna was struck in the head with a large rock, disarmed and fatally shot by the suspect, who also fatally shot Vera Adams in her home. The suspect was subsequently arrested by responding officers and taken into custody. Sergeant Chesna was a U.S. Army Veteran and recipient of the Purple Heart. He is survived by his wife and two children.