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Family of four killed in Kalispell in Mother’s Day murder-suicide

  • On Sunday, May 18, 2025, four people, including two children, were found dead in a Kalispell home after a mental health 911 call at 127 Werner Peak Trail.
  • Authorities responded after Nicholas Olson-Hartley placed a 911 call during which he expressed troubling remarks before abruptly ending the call, leading police to suspect a murder-suicide.
  • The deceased included 33-year-old Nicholas Olson-Hartley, his 27-year-old spouse Katie, and their two children, aged six years and seven months, all of whom suffered fatal gunshot wounds.
  • The Kalispell Police Department expressed their deep sympathy for the family affected by this tragic event and emphasized their ongoing commitment to investigating the case and providing support.
  • The event suggests urgent attention to mental health crises and law enforcement support, as the deaths are believed to result from a family murder-suicide involving a mental health call.
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NBC Montana broke the news in Missoula, United States on Monday, May 12, 2025.
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