California State University, Fullerton massacre - 7 murdered, 2 Injured - July 12, 1976

The gunman, 37-year-old Edward Charles Allaway, was a custodian at the university's library. Armed with a semi-automatic rifle he purchased at a Buena Park Kmart, Allaway killed seven people and wounded two others in the library's first-floor lobby and at the building's Instructional Media Center (IMC), located in the basement. Allaway had a history of violence and mental illness. He was diagnosed as paranoid schizophrenic and found insane by a judge after being convicted by a jury. He is imprisoned at Patton State Hospital under medical treatment.