shooting May 2, 2019 7:06 am Dorchester Quadruple Shooting Under Investigation Boston police are searching for the gunman who ambushed four people in a car and opened fire on them, killing one person. US & World Videos 2:39 Student protesters in Boston face new threats 2:04 Understanding the pushback against MBTA's zoning law 1:50 Boston student protesters face new warnings 2:30 Police shoot and kill armed man in Raynham, authorities say 2:02 Protesters at local campuses look on as dozens detained at Columbia