Murder–suicides in California

Philip Edward Hartman was a Canadian and American comedian, actor, screenwriter and graphic designer. Hartman was born in Brantford, Ontario, and his family moved to the United States when he was ten years old. After graduating from California State University, Northridge, with a degree in graphic arts, he designed album covers for bands including Poco and America. In 1975, Hartman joined the comedy group the Groundlings, where he helped Paul Reubens develop his character Pee-wee Herman. Hartman co-wrote the film Pee-wee's Big Adventure and made recurring appearances as Captain Carl on Reubens' show Pee-wee's Playhouse.

Judith Eva Barsi was an American child actress. She began her career in television, making appearances in commercials and television series, as well as the 1987 film Jaws: The Revenge. She also provided the voices of Ducky in The Land Before Time and Anne-Marie in All Dogs Go to Heaven, both released after her death. She and her mother, Maria, were killed in July 1988 in a double murder–suicide committed in their home by her father, József Barsi.

spree killing which occurred in Isla Vista, California

Canadian Playmate and actress (1960–1980)

aviation accident caused by hijacking

mass shooting that took place on January 21, 2023 near Los Angeles, California, USA

mass shooting at the Borderline Bar and Grill, in Thousand Oaks, California, United States

American jazz trombonist (1926–1978)

American boxer (1886–1936)

American actor (1925-1967)

aviation accident caused by hijacking

Soviet-Russian entrepreneur, video game designer (1954–1998)

a November 14, 2019, school shooting at Saugus High School in Santa Clarita, California

Serbian actor (1941-1966)

mass shooting at a rail yard in San Jose, California, United States, on May 26, 2021; the deadliest mass shooting in San Francisco Bay Area history

Canadian murderer (1951–1980)

mass shooting in California

January 1989 school shooting in Stockton, California, USA

American art director (1866-1946)

2008 murder–suicide

shootout in Newhall, Los Angeles County, California in 1970

son of cult leader who committed murder-suicide