Retired SFPD Deputy Chief and Family Die in Marin County Shooting

Key points

• Kevin Mannix, 68, a retired SFPD sergeant, is believed to have killed his wife, Ann Mannix, 65, and their daughter, Katherine Mannix, 24, before dying by suicide at their home on Strawberry Circle in Mill Valley.
• Ann Mannix served the San Francisco Police Department for over 30 years, rising to the rank of deputy chief. She was the first woman to join and lead the department's SWAT team and tactical company.
• A 911 caller, whose identity and relationship to the family were not disclosed, reported shots fired at the residence shortly after 5 p.m. on Sunday. The caller was not injured and escaped the home.
• The Marin County Sheriff's Office confirmed the deaths and indicated the incident was a suspected double murder-suicide. Autopsies for the three victims are scheduled for Tuesday.
• San Francisco Police Chief Derrick Lew and the San Francisco Police Officers Association expressed profound grief, highlighting Ann Mannix's career achievements and the impact of the tragedy on the law enforcement community.

Background

This incident follows a pattern of domestic violence and law enforcement-related tragedies, such as the 2026 Inver Grove Heights double murder-suicide. The Mannix family had lived in the affluent Strawberry neighborhood of unincorporated Mill Valley for several years. Ann Mannix was known for her volunteer work with the National Charity League and as a youth basketball coach. Kevin Mannix retired from the SFPD in 2018 after 27 years of service. The community has expressed shock and concern, with some residents visiting the home to offer prayers.

How outlets are covering it

The Los Angeles Times and Marin Independent Journal focused on the basic facts of the shooting and the identities of the victims, emphasizing the suspected murder-suicide nature of the incident. KTVU and The Press Democrat highlighted the careers of Ann and Kevin Mannix, particularly Ann's role as a trailblazer in the SFPD. The San Francisco Police Officers Association and San Francisco Police Chief Derrick Lew expressed deep sorrow and emphasized the impact of the tragedy on the law enforcement community. The Press Democrat noted that the incident was witnessed by at least one other person in the home, who called 911 and escaped unscathed. All sources agreed on the basic facts of the incident, but differed in their emphasis on the victims' careers and the community's response.

Why it matters

The deaths of two retired police officers and their daughter in a suspected murder-suicide highlight the ongoing challenges of domestic violence and mental health within law enforcement communities. The incident has raised concerns about the well-being of officers and their families, and has prompted calls for increased support and resources for law enforcement personnel. The tragedy also underscores the need for better understanding of the factors that contribute to such incidents, and for more effective prevention and intervention strategies.

What to watch

Autopsies for the three victims are scheduled for Tuesday. The Marin County Sheriff's Office is continuing its investigation into the incident, and no motive has been disclosed. The San Francisco Police Department and local community are expected to hold memorial services and other events to honor the victims and support their families. Authorities are also expected to provide more information about the 911 caller and the circumstances of the shooting as the investigation progresses.