Authorities in Marin County, California, are investigating a fatal shooting reported Sunday evening, October 11, in Strawberry, an unincorporated community near Mill Valley. The incident has drawn attention across the Bay Area after officials identified three people found dead inside a home on Strawberry Circle. Officials have not announced additional details about the emergency response.
What Happened in Strawberry
According to the Marin County Sheriff’s Office, deputies responded shortly after 5 p.m. following a 911 call reporting gunfire inside the residence. A person who contacted emergency services was able to leave the home safely. Deputies then entered the property and discovered three deceased people.
Authorities have described the preliminary case as a suspected double murder-suicide. Local news outlets, citing law enforcement and family identification information, reported that the deceased were retired San Francisco Police Department Sergeant Kevin Mannix, 68; his estranged wife, retired Deputy Chief Ann Mannix, 65; and their daughter, Katherine “Katie” Mannix, 24. Investigators have identified Kevin Mannix as the suspected shooter, according to reports citing authorities.
The motive has not been publicly established, and the investigation remains ongoing. Officials have not released every detail about the events leading up to the shooting. Autopsies were scheduled as investigators work to document the circumstances and confirm findings.
Community and Police Department Respond
The deaths have deeply affected members of the San Francisco law enforcement community. The San Francisco Police Officers Association expressed grief over the loss and urged current and retired officers to support colleagues and loved ones during a difficult time.
Ann Mannix was remembered by the association as a trailblazer during her career. She was the first woman to join and lead the department’s SWAT team and later held leadership roles in field operations and special operations. She served the San Francisco Police Department for more than three decades before retiring in 2021.
Kevin Mannix served with the department for 27 years and retired in 2018. The family’s deaths have prompted an outpouring of sadness among former colleagues and community members.
Investigation Continues
The Marin County Sheriff’s Office is continuing to investigate the shooting. Authorities have said there is no ongoing threat to the wider community, though residents should follow official notices if circumstances change. Anyone with relevant information should contact the sheriff’s office through its official channels.
This remains a developing story, and details may change as investigators release additional information. Readers should rely on official statements and established local news organizations rather than unverified social media posts. The focus now remains on establishing a clear account of what happened and supporting those affected by the tragedy.

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