November 8, 2018 5:51 pm Search for Motive in Mass Shooting at College Bar The alleged gunman in the California bar mass shooting is a Marine Corps veteran who had emotional problems after serving overseas, sources say. Jonathan Dienst reports . Local 5:34 VIDEO: Columbia University protesters takeover Hamilton Hall 3:01 I-Team: NYPD officers testify in surveillance video controversy 1:59 2 suspects charged with murder in Long Island body parts case 2:35 Extra NYPD patrols in Central Park after series of violent crimes 3:01 Columbia begins suspending students after protesters defy deadline