The shooter behind the deadly rampage at Umpqua Community College in Roseburg, Oregon, apparently committed suicide after exchanging gunfire with officers, Douglas County Sheriff John Hanlin said Saturday, reports CNN.
A timeline released by investigators shows that the first 911 call about the Thursday's shooting came at 10:38 a.m.
Six minutes later, Hanlin said, two Roseburg police officers and a state trooper arrived on the scene. At 10:46 a.m., the officers exchanged gunfire with Harper-Mercer. Two minutes later, there was a report of "suspect down," according to the timeline.
Hanlin said the state medical examiner determined the gunman's death was a suicide. State police are investigating the shootout.