A retired San Francisco police sergeant is suspected of killing his wife and their adult daughter before taking his own life at the family’s home in Mill Valley, California. Authorities identified the deceased as retired Deputy Police Chief Ann Mannix, 65, her 24-year-old daughter, Katie Mannix, and retired Sergeant Kevin Mannix, 68. Deputies responded to a 911 call at about 5 p.m. Sunday and found all three family members dead inside the residence. Autopsies were scheduled for Tuesday as investigators continued examining the circumstances.
The Marin County Sheriff’s Office described the incident as a suspected double murder-suicide. Officials said the caller, identified only as another resident of the home, escaped safely before deputies arrived. Investigators have not publicly disclosed what evidence was recovered or identified a possible motive.
The deaths have drawn attention in the Bay Area because of Ann Mannix’s career in law enforcement. She was described as a former SWAT commander who became the first woman to join and later lead the San Francisco Police Department’s SWAT team.
Law enforcement colleagues and community members expressed shock and grief, while authorities urged caution as the investigation and forensic examinations proceeded.
| 1) | Authorities identify the three people found dead |
| 2) | 911 call brings deputies to Mill Valley home |
| 3) | Investigation focuses on suspected murder-suicide |
| 4) | Ann Mannix remembered as a SWAT pioneer |
| 5) | Police community responds to family tragedy |
Authorities identify the three people found dead
Marin County authorities identified the deceased as Ann Mannix, 65, her daughter, Katie Mannix, 24, and Kevin Mannix, 68. Ann Mannix was a retired San Francisco deputy police chief and former SWAT commander, while Kevin Mannix was a retired San Francisco police sergeant. Officials later identified Kevin Mannix as the suspected shooter, while describing the deaths as an apparent murder-suicide.
911 call brings deputies to Mill Valley home
Deputies were sent to the family’s residence on Strawberry Circle in Mill Valley at approximately 5 p.m. Sunday after receiving a 911 call. The caller was reportedly another resident who safely left the home, although authorities did not release that person’s identity. After entering the residence, deputies found the three family members dead inside.
Investigation focuses on suspected murder-suicide
The sheriff’s office said the preliminary investigation pointed to a suspected double murder-suicide involving three people. Public information officer Miguel Almaguer said the suspected shooter was male, and officials later named Kevin Mannix. At a subsequent briefing, authorities said they could not discuss evidence found at the home. Autopsies for all three were scheduled for Tuesday, which investigators expected to use to establish the precise causes and circumstances of death.
“The preliminary investigation indicates a suspected double-murder suicide involving three individuals.”
Ann Mannix remembered as a SWAT pioneer
Ann Mannix was remembered for her role in San Francisco law enforcement and her involvement in youth athletics. According to a statement from the president of the San Francisco Police Officers Association, she was the first woman to join and later lead the department’s SWAT team. She also served on the board of the city’s Police Activities League and supported sports programs for her children and other young people.
Police community responds to family tragedy
The deaths prompted an emotional response from former colleagues and members of the San Francisco police community. Association president Louis Wong said the loss of Ann Mannix, Katie Mannix and Kevin Mannix had left the department’s extended family grieving. Former San Francisco police officer and Bay Area columnist Lou Barberini, who knew the couple, described Ann Mannix as talented, capable, athletic and well-liked. Authorities had not announced a motive or provided additional details about the events inside the home.
| Number | Key Point |
|---|---|
| 1 | Three family members were found dead at a Mill Valley residence. |
| 2 | Authorities identified retired Sergeant Kevin Mannix as the suspected shooter. |
| 3 | The victims included former Deputy Chief Ann Mannix and her daughter, Katie. |
| 4 | A resident escaped safely and called 911 before deputies arrived. |
| 5 | Autopsies were scheduled as investigators continued working to determine what happened. |
Summary
Authorities are investigating the deaths of a retired San Francisco police leader, her daughter and her retired police officer husband as a suspected murder-suicide. The case remains under investigation, with autopsies and further examination of the Mill Valley residence expected to provide additional information. Officials have not released a motive or detailed the evidence supporting the preliminary findings.
Frequently Asked Questions
Who died in the Mill Valley incident?
Authorities identified the deceased as retired Deputy Police Chief Ann Mannix, her 24-year-old daughter, Katie Mannix, and retired San Francisco police Sergeant Kevin Mannix.
Where did the deaths occur?
The deaths occurred at the Mannix family home on Strawberry Circle in Mill Valley, Marin County, California.
What have investigators said about the case?
The Marin County Sheriff’s Office said the preliminary investigation indicated a suspected double murder-suicide and identified Kevin Mannix as the suspected shooter. Authorities have not disclosed a motive or all the evidence collected.
What happens next?
Autopsies for the three deceased people were scheduled for Tuesday, while investigators continued reviewing the scene and other available evidence.
