Retired SFPD Deputy Chief Ann Mannix and Daughter Victims in Marin County Incident
Retired SFPD Deputy Chief Ann Mannix and her daughter were killed in a suspected double murder-suicide in Marin County.
San Francisco Oakland San Jose, CA, October 12, 2026 — A tragic incident in Marin County has resulted in the deaths of retired San Francisco Police Department (SFPD) Deputy Chief Ann Mannix and her daughter. Authorities are investigating the event as a suspected double murder-suicide.
The Marin County Sheriff’s Office has confirmed the deaths but has not yet released further details regarding the circumstances surrounding the incident, including the specific date and time it occurred. The identities of the victims are Ann Mannix, a former high-ranking official within the SFPD, and her daughter. The relationship between the victims and the suspected perpetrator, if identified, has not been disclosed.
Ann Mannix served for many years with the San Francisco Police Department, eventually reaching the rank of Deputy Chief. Information regarding her specific tenure, accomplishments, or the date of her retirement was not immediately available in the initial reports. Similarly, details about her daughter, beyond her relationship to Mannix, have not been provided.
The nature of the investigation as a suspected murder-suicide indicates that law enforcement is operating under the premise that one individual within the incident is believed to have caused the deaths of the others before taking their own life. However, official confirmation of the cause of death for either victim, or the identification of the individual believed to be responsible, has not been made public.
Investigators are reportedly continuing their work to piece together the events that led to this fatal outcome. The specific location within Marin County where the incident took place has also not been detailed. Officials have stated that more information will be released as the investigation progresses and is appropriate to share with the public. The lack of immediate details has left many in the community seeking answers regarding this sensitive and deeply unfortunate event.
Story summarized from the original created by KGO on abc7news.com, see more information here.
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