On April 16, 2007, a South Korean student named Seung-Hui Cho shot and killed 32 people and then turned the gun on himself at Virginia Polytechnic Institute in the deadliest shooting rampage in American history. Within hours after the massacre, it was widely reported that the killer had been a loner with a history of bizarre behavior who frightened some of his teachers and fellow students. He apparently had a history of psychiatric illness and had once been hospitalized.