Heidi Olson-Hartley, a 6-year-old girl from Kalispell, Montana, died on the morning of May 11, 2025. Shortly before 6 a.m., police were dispatched to the family’s home on Werner Peak Trail in the Silverbrook Estates neighborhood after a 911 caller made “concerning statements” and then hung up. Officers forced entry when they couldn’t reach anyone inside and found four people dead from gunshot wounds: Heidi; her mother, 27-year-old Katie Olson-Hartley; and her seven-month-old brother, Ste
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