On the morning of January 17, 1989, Patrick Edward Purdy, 24, arrived at Cleveland Elementary School in Stockton, California, in a station wagon he had rigged with a Molotov cocktail and gasoline containers. After parking at the rear of the school, he entered the grounds carrying a semi-automatic rifle with a fixed bayonet and two handguns. He set his vehicle ablaze and began firing into a playground where approximately 300 children were present. Over approximately three minutes, Purdy fired 106 rounds, moving between positions to target fleeing children, before shooting himself once in the head with a 9mm pistol. Emergency responders found him still alive at approximately 11:50 a.m., but he died shortly afterward.
Five children were killed: four of Cambodian ancestry and one of Vietnamese ancestry, all from refugee families. Thirty additional children and one teacher, who was wounded while assisting injured students, were shot but survived. More than two-thirds of the wounded were of Southeast Asian ancestry. A community mourning service was held on January 23, 1989, at the Stockton Civic Center, attended by over 2,000 people, followed by funerals conducted according to the Buddhist, Baptist, and Roman Catholic beliefs of the victims' families.
Purdy had a documented history of instability, including childhood exposure to domestic violence and parental alcohol abuse, periods of homelessness, a criminal record spanning drug offenses, robbery, and burglary, and a prior suicide attempt while in custody in 1987. He had purchased the rifle used in the attack in Oregon in August 1988 and a handgun from a Stockton pawn shop in December 1988. In the weeks before the shooting, he was reported to have made statements expressing resentment toward Southeast Asian immigrants, and his vehicle had reportedly been seen near several Stockton schools with high Southeast Asian enrollment prior to the attack. An official report concluded that Purdy had decided to end his life by mid-December 1988 and had spent weeks preparing for an attack intended to draw attention to himself, with racial prejudice considered a likely major factor in his choice of target, which was a school he had himself attended as a child.
The shooting prompted national debate over regulation of semi-automatic and assault weapons. On May 24, 1989, California enacted the Roberti–Roos Assault Weapons Control Act, becoming the first U.S. state to prohibit ownership and transfer of numerous specified assault weapon models. The school reopened the day after the shooting with counselors present, and survivors later founded Cleveland School Remembers, a nonprofit focused on reducing gun violence and supporting survivors, which remains active.