# Mannix family murder-suicide in Marin County

> Developing situation record from CLSTR: https://clstr.news/situations/mannix-family-murder-suicide-in-marin-county
> Updated: 2026-10-23T22:34:19.000Z. Sources: 15. Developments: 3.

On October 11, 2026, a suspected murder-suicide occurred at a home in the Strawberry neighborhood of Marin County. Authorities identified the victims as 65-year-old Ann Mannix, a former San Francisco Police Department (SFPD) deputy chief and SWAT commander, and her 24-year-old daughter, Katherine Mannix. The suspect is identified as Ann’s husband, 68-year-old retired SFPD sergeant Kevin Mannix, who allegedly killed both women before committing suicide.

Following the incident, the San Francisco Police Officers Association canceled a planned memorial service at the family's request. Family members, including Ann Mannix’s brother and retired commander Rich Corriea, pointed to a history of family trauma and mental health struggles involving Kevin Mannix as contributing factors to the violence.

On October 23, 2026, hundreds of mourners, including San Francisco elected officials and law enforcement officers, gathered at St. Ignatius Parish to honor Ann and Katie Mannix. The funeral procession, which included police motorcycles and hearses, was attended by Mayor Daniel Lurie, Police Chief Derrick Lew, and District Attorney Brooke Jenkins. During the service, Ann Mannix’s surviving children and her brother, retired officer Richard Correia, delivered eulogies. The slayings remain under investigation.

## Claims

- Ann Mannix and her daughter Katie Mannix were killed on October 11. (reported by 3 sources)
- Kevin Mannix, a retired San Francisco police officer, allegedly killed Ann and Katie Mannix before committing suicide. (reported by 3 sources)
- The funeral Mass was held at St. Ignatius Parish in San Francisco. (reported by 3 sources)
- The shooting occurred at the family’s home in Marin County. (reported by 3 sources)
- Ann Mannix served as an SFPD Deputy Chief and led the SWAT team. (reported by 2 sources)
- Ann Mannix retired from the SFPD in 2021. (reported by 2 sources)
- Mayor Daniel Lurie, Police Chief Derrick Lew, and District Attorney Brooke Jenkins attended the funeral. (reported by 1 source)
- The slayings are currently under investigation. (reported by 1 source)

## Timeline

### 2026-10-23: San Francisco officials and police mourn slain Deputy Chief Ann Mannix and daughter

San Francisco officials and law enforcement gathered at St. Ignatius Parish to honor former SFPD Deputy Chief Ann Mannix and her daughter, Katie, following a murder-suicide in Marin County.

4 sources. https://clstr.news/cluster/san-francisco-officials-and-police-mourn-slain-deputy-chief-ann-mannix-and-daughter

### 2026-10-15: San Francisco police leader and daughter killed in suspected murder-suicide

Retired SFPD Deputy Chief Ann Mannix and her daughter were killed in a suspected murder-suicide by her husband, retired Sergeant Kevin Mannix, at their Marin County home.

2 sources. https://clstr.news/cluster/san-francisco-police-leader-and-daughter-killed-in-suspected-murder-suicide

### 2026-10-12: Retired SFPD sergeant suspected in family murder-suicide

Retired SFPD sergeant Kevin Mannix is suspected of killing his wife, former deputy chief Ann Mannix, and their 24-year-old daughter before committing suicide in their Marin County home.

12 sources. https://clstr.news/cluster/ann-mannix-and-daughter-killed-in-marin-county-murder-suicide

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Cite as: Mannix family murder-suicide in Marin County. CLSTR, https://clstr.news/situations/mannix-family-murder-suicide-in-marin-county