A retired San Francisco police sergeant purportedly shot and killed his wife, who was a former SFPD deputy chief, and their 24-year-old daughter and then turned the gun on himself in a “double-murder suicide” in Marin County, according to authorities.
The Marin County sheriff’s department identified the victims as Kevin M. Mannix, 68; Ann Elizabeth Corriea Mannix, 65; and 24-year-old Katherine Elizabeth Mannix, the couple’s youngest daughter.
Kevin was a sergeant until 2018, and Ann retired as a deputy chief of the department in 2021, when she was the SFPD’s highest-ranking woman.
Miguel Almaguer, the Marin County Sheriff’s spokesperson, confirmed Monday morning that, “The preliminary investigation indicates a suspected double-murder suicide involving three individuals. The suspected shooter is male.”
In law-enforcement radio communications from Sunday night reviewed by Mission Local, officers stated that the “RP” (reporting party) said “the father killed the mother and the sister” with “six to nine shots” from a handgun. The alleged shooter was identified in the radio communications as Kevin Mannix.
Almaguer reported on Sunday evening that a 911 call was made shortly after 5 p.m. regarding shots fired in a home on the same small street in unincorporated Mill Valley where the Mannix family owns a home. The 911 caller had been within the home.
“Our deputies arrived on the scene within a few minutes and were able to reach the reporting party. She made her way outside of the property.”
Deputies entered the home and found three deceased people. Almaguer said at the time that deputies were awaiting a search warrant that would enable them to investigate further.
San Francisco Police Department Chief Derrick Lew had sent a department-wide email at shortly before 7:40 on Sunday evening, announcing, “with heavy hearts,” the deaths of SFPD veterans Kevin and Ann Mannix.
Kevin Mannix retired as a sergeant at Taraval Station in 2018. Ann Mannix was the first woman to join the SFPD SWAT team, and the first woman to lead it — she is, to date, the only woman to ever serve on the SFPD SWAT team.
The fourth-generation San Franciscan ascended to deputy chief overseeing special operations and retired in 2021. She was the sister of retired San Francisco Police Department Commander Rich Corriea.
“Please keep their family in your prayers,” reads Lew’s email.
Louis Wong, the president of the San Francisco Police Officers Association, added the following statement:
There are no words that can fully capture the depth of this tragedy, nor are there simple answers to the painful questions we are all asking. Ann Mannix was a trailblazer in our department — becoming the first woman to join and lead the SWAT team, and rising to lead both the Field Operations and Special Operations Bureaus.
Many worked alongside Kevin during his 27 years of dedicated service at Taraval Station and beyond. To see their lives, and the life of their 24-year-old daughter Katie, end in such a horrific and senseless manner is a burden that weighs heavily on every officer, active and retired.
Autopsies are scheduled for Tuesday.
This is a breaking story and is being updated as more information becomes available.
Help is always available. If you or someone you know is in distress, please call the local 24/7 Crisis Line at (415) 781-0500 or text (415) 200-2920. You can also reach the 988 Suicide & Crisis Lifeline by dialing 988.
For domestic violence resources, help is available 24/7 from the National Domestic Violence Hotline at 800-799-SAFE (7233), by texting START to 88788, or at thehotline.org .
Given the well-known problems of domestic abuse in the LEO ranks nationally, it’d be interesting to know if SFPD has similar problems (besides this obviously tragic example). And if it does, does SFPD (or the union) have any programs to help mitigate it?
Truly sucks. By all accounts, the family were not bad people. Sound like he just snapped, but there is clearly more to the picture.
That thin blue line killed his whole family! Wow.
When women leave men, they are assaulted and murdered. This is a feature of American society and culture. Not a bug.
We are a violent, misogynistic country.