Tragic Murder-suicide Claims Life of Former Police Chief and Daughter

WHO:

NY Post - Ann Mannix's friend, local attorney and community activist Marie Hurabiell, stated that Ann was "aglow over a fresh chapter in her life" after deciding to split from her husband.

Fox News - Ann Mannix, San Francisco's first female SWAT commander, and her daughter Katie were found dead.

NY Post - Kevin Mannix, 68, is identified as the husband of Ann Mannix and the father of Katie.

WHAT:

Fox News - A suspected murder-suicide occurred in which Kevin Mannix shot and killed Ann Mannix and their daughter Katie before turning the gun on himself.

NY Post - Ann Mannix, 65, and Katie, 24, were killed by Kevin Mannix at their Marin County home.

WHERE:

Fox News - The incident took place in Mill Valley, a wealthy coastal enclave in Marin County, California.

WHEN:

NY Post - The shooting occurred on a Sunday evening.

WHY:

NY Post - A close family friend revealed that Ann Mannix and Kevin Mannix had a turbulent marriage prior to the incident.

NY Post - Ann Mannix had recently decided to split from her husband, describing him as "possessive," which may have contributed to the marital strife leading up to the incident.

HOW:

NY Post - Kevin Mannix used a firearm to carry out the shooting.

(UPDATED October 13, 2026 01:34 UTC)

Ann Mannix is reportedly feeling "aglow over a fresh chapter in her life" after deciding to split from her husband, according to her friend Marie Hurabiell, a local attorney and community activist. A close family friend has shared that Ann and Kevin Mannix had a turbulent marriage leading up to this decision. The news highlights a significant change in Ann's personal circumstances.

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(UPDATED October 12, 2026 21:05 UTC)

In a tragic incident in Mill Valley, California, Ann Mannix, San Francisco's first female SWAT commander, and her daughter Katie were found dead in what authorities are investigating as a murder-suicide. Kevin Mannix, 68, has been identified as the shooter, reportedly taking the lives of his wife, 65, and their daughter, 24, before turning the gun on himself. This heartbreaking event followed Ann's recent decision to separate from Kevin, whom she described as "possessive," possibly contributing to the tensions that led to this devastating outcome.