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Ann Mannix, daughter killed in suspected murder-suicide in Mill Valley
Breaking NewsFeatured

Ann Mannix, daughter killed in suspected murder-suicide in Mill Valley

By adminvoxa
October 13, 2026 3 Min Read
Comments Off on Ann Mannix, daughter killed in suspected murder-suicide in Mill Valley

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A former San Francisco deputy police chief died, alongside her daughter, in an apparent murder-suicide perpetrated by her husband, a retired police sergeant, according to the Marin County Sheriff’s Office.

Authorities identified the victim as Ann Mannix, 65, a former SWAT commander, her 24-year-old daughter, Katie, and her husband, 68-year-old retired San Francisco police Sgt. Kevin Mannix.

“Preliminary investigation indicates a suspected double murder involving three individuals,” Marin County Sheriff’s Public Information Officer Miguel Almaguer said in a statement. “The suspected shooter is a man.”

Speaking later at a press briefing, he specifically identified Kevin Mannix as the shooter and said he could not discuss the evidence found in the home.

FORMER DEM VIRGINIA LT. GOVERNMENT KILLS HIS WIFE, HIMSELF IN SHOCKING MURDER-SUICIDE: POLICE

Retired San Francisco Deputy Police Chief Ann Mannix pictured in uniform

Ann Mannix, retired San Francisco deputy police chief, pictured in a portrait shared by the city’s police officers’ association. The pioneering former SWAT commander was shot and killed Sunday in an apparent murder-suicide. (SFPOA)

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Deputies responded to a 911 call at the family’s home in Mill Valley around 5 p.m. Sunday.

The caller reportedly escaped safely from the residence, but was identified only as another resident of the home. Officers entered and found all three family members dead inside, authorities said.

KANSAS CONVICTED FELON, SEX OFFENDER KILLS OTHER MEMBERS OF HIS FAMILY BEFORE FOLLOWING HIMSELF: POLICE

Katie Mannix poses for a portrait in a field

Katie Mannix pictured in an undated Facebook photo. The 24-year-old daughter of two prominent retired San Francisco police officers was shot and killed in an apparent murder-suicide by her father over the weekend, authorities said. (Katie Mannix/Facebook)

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Autopsies on the three victims were scheduled for Tuesday.

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“It is with deep sadness, shock and heavy hearts that we address the devastating news that emerged from Marin County on Sunday evening,” Louis Wong, president of the San Francisco Police Officers Association, said in a statement Monday. “The tragic loss of retired Deputy Chief Ann Mannix, her daughter Katie, and retired Sergeant Kevin Mannix in a suspected murder-suicide has left our entire SFPD family in shock. There are no words that can fully capture the depth of this tragedy, nor simple answers to the painful questions we all ask ourselves.

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A house with an American flag outside and a wooden fence

The family home on Strawberry Circle in the Bay Area’s Mill Valley, photographed on Google Maps. (Google Maps)

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Ann Mannix was the first woman to join and later lead the SWAT team, Wong said. She was also a supporter of youth sports for her children and others and served on the board of directors of the city’s Police Activities League.

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“Ann was very talented and she was very knowledgeable,” said Lou Barberini, a former San Francisco police officer and Bay Area columnist who knew the couple. “She was a great athlete, a good police officer and she was very well liked.”

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San Francisco police did not immediately respond to a request for comment.

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