dorchester 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 1:56 20-year-old killed, teen critically hurt in Northbridge double stabbing 1:50 Man found shot to death in Taunton shed 1:43 Authorities respond to incident in Northbridge 0:49 Bowling alley reopens 6 months after mass shootings in Lewiston, Maine 2:27 Mother speaks out after school shooting threat in Milton