Retired SF police sergeant kills wife, ex-deputy chief, and daughter in Marin County, then himself

Mixed · 2Three people were found dead inside a home on Strawberry Circle in Strawberry, an unincorporated community east of Mill Valley in Marin County, California, on Sunday 11 October 2026. 1 2 Mixed · 2Kevin Mannix, 68, is believed to have shot his wife Ann Mannix, 65, and their 24-year-old daughter Katie before turning the gun on himself; the deaths are described as a suspected murder-suicide. 2 3 Mixed · 2The Marin County Sheriff's Office said deputies were dispatched after a 5:03 p.m. call reporting gunfire. Officers arrived within minutes and contacted the caller, who had safely left the home, then secured the perimeter and found three people dead inside. 3 2

Mixed · 2The sheriff's office said there was no known threat to the community and that the investigation was at a preliminary stage; it had not released what led to the shooting. 1 2 Right · 1Ann Mannix was a retired San Francisco Police Department deputy chief. She was the first woman on the SFPD SWAT team and later the first woman to lead it, became deputy chief of the Field Operations Bureau in 2018 and took charge of the Special Operations Bureau in 2019, according to department records cited by the New York Post. 1 3 Left · 1The Daily Mirror adds that Ann Mannix retired in 2021, according to a police announcement at the time. 2

Right · 1Kevin Mannix retired from the SFPD in June 2018 after 27 years, as a sergeant. A farewell letter published by Taraval Station said, "I leave the SFPD, but I am taking your friendships with me forever." 1 3 Right · 1SFPD Chief Derrick Lew told department staff he was sharing the news "with heavy hearts" and that the behavioral science unit was available to those affected. 3 Mixed · 2The San Francisco Police Officers Association said the deaths had left the SFPD family "reeling", called Ann Mannix "a trailblazer in our department", and said there were no "simple answers to the painful questions we are all asking". 2 3

Right · 1A friend of Ann Mannix of more than 60 years told the California Post that Ann had confided difficulties in the marriage ("It wasn't great"), though as far as the friend knew the couple were not estranged. The friend described Katie as a nursing student and Ann as a devoted mother. This account is one person's recollection and has not been confirmed by authorities. 3