Gunman shot by trooper and civilian after opening fire on Memorial Drive in Cambridge; 2 in critical condition

A gunman who opened fire at cars on Memorial Drive in Cambridge, Massachusetts, Monday afternoon was shot by a responding State Police trooper and a civilian. Two men in separate cars were shot and have life-threatening injuries. The suspect, 46-year-old Tyler Brown, is in custody and is being treated for gunshot wounds at a hospital. It happened around 1:30 p.m. near the intersection of River Street. Videos from witnesses show the gunman walking down the middle of the street firing and waving a rifle. According to I-Team sources, a photo of Brown was included in an officer safety bulletin that...