Kevin Mannix

Retired San Francisco police sergeant Kevin Mannix killed his wife and 24-year-old daughter before taking his own life.

“Kevin had a monster inside of him that he was able to suppress for all of his lifetime until Sunday, and that monster came out in the most horrific possible way.”

SFPD background checks

Kevin Mannix worked as a background investigator for SFPD until his death, completing a four-hour course in January.

Ann Mannix's career

Ann Mannix was the first woman to lead SFPD's SWAT team and earned $5,700 in 2026.

Marriage crisis

Kevin Mannix was working out, losing weight, and trying to change his appearance as the couple headed toward divorce.

Previous assault

Kevin Mannix was severely assaulted in 1997, sustaining a broken nose, torn knee ligament, and fractured eye socket.

SFPD transfer

Kevin Mannix was transferred to SFPD's property division in September 2023 at the request of the deputy chief of administration.

Mental health concerns

SFPD leaders are seeking resources for officers and first responders exposed to trauma that can lead to mental health and addiction problems.

Family last seen

Ann Mannix and Kevin Mannix last saw each other days before the killings at a Golden State Valkyries playoff game.