Retired SF Police Sergeant Kills Wife and Daughter in Murder-Suicide

A retired San Francisco police sergeant, Kevin Mannix, 68, is accused of fatally shooting his wife, former Deputy Police Chief Ann Mannix, 65, and their 24-year-old daughter, Katie, before taking his own life. The incident occurred Sunday evening at the family's home in Strawberry, an affluent community in Marin County.

A friend of Ann Mannix, Mary Conde, described Kevin Mannix as undergoing a late-life makeover, hitting the gym and altering his appearance as his marriage deteriorated. "He had wanted to chase youth," Conde told the San Francisco Chronicle. "It seems like he was on a campaign to revamp his appearance." Conde also shared a chilling observation, stating, "Kevin had a monster inside of him that he was able to suppress for all of his lifetime until Sunday, and that monster came out in the most horrific possible way."

Authorities have not publicly disclosed a motive for the suspected double murder-suicide. Investigators noted that Kevin Mannix had been drinking red wine, according to the 911 caller who managed to escape the residence and alert authorities.

Further details revealed that Kevin Mannix, despite retiring from the San Francisco Police Department in 2018 after 27 years of service, had been working part-time. He was reportedly investigating prospective police recruits before being reassigned to the property division on September 1. The reason for this transfer remains unclear, and department officials declined to comment.

Ann Mannix was a trailblazer within the San Francisco Police Department, noted as the first woman to serve on and eventually command the department's SWAT team. She later achieved the rank of deputy chief, overseeing significant bureaus within the department. Colleagues and loved ones have expressed profound grief over the tragedy. The San Francisco Police Officers Association called the incident a "horrific and senseless" tragedy that has deeply impacted the department.