A retired sergeant and his former deputy police chief wife were allegedly experiencing marital issues before he killed his wife and their adult daughter in a murder-suicide, according to a friend. Kevin Mannix killed his wife, Ann Mannix, and their daughter Katie Mannix at their home in California’s Marin County on the evening of Sunday, October 11, before he died by suicide. As the incident unfolded, the couple’s older daughter hid in a bedroom. She called 911 around 5 p.m. after hearing gunshots, reporting to police that her father had been drinking red wine. Following th...
Married Police Officers Had Strained Relationship Before Murder-Suicide
HALO Newsroom
Oct 13, 2026 • 1 week ago
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Wayne G Fraser
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