On July 2, 1982 in Thompson Falls, Montana, 18-year-old Deborah Sexton was killed during a family homicide when her father, 47-year-old Loxley Sexton, opened fire on relatives. Deborah was among five family members killed that day: her estranged stepmother Linda Sexton, 39; brothers Bobby, 16, and Michael, 8; and Linda’s mother, 65-year-old Francis Cunningham.

After the shootings, Loxley Sexton died by his own hand at the scene; investigators identified him as the shooter and no further arrests were made. The killings left a single family devastated and ended with the perpetrator’s death, so many questions about motive and the family’s final hours remain unanswered.

If anyone knew Deborah or the family, or has information about what led up to the July 2 events, please come forward.