Michelle Heather Bigras was 18 when she disappeared after setting out to hitchhike from Peterborough, Ontario to Warkworth on October 11, 1985. She was last seen after a conversation with her mother outside the Federal Parole Office on Charlotte Street, heading on a route she had used routinely to visit her boyfriend at the Warkworth Institution. She never reached her destination and was never heard from again.

At the time she was 5 feet 4 inches, about 95 pounds, with brown hair, blue eyes, two small scars on her left eyebrow and pointed canine teeth. She was wearing a brown suede or leather jacket, a green pullover, an orange sweater, blue jeans, blue and white Sparx shoes and carrying a black hobo-style purse. Family members reported her missing when she failed to return; police investigated but found few leads in an era before surveillance cameras and cell phones.

Investigators considered foul play after one tip claimed three men picked her up, drove her to Cobourg and killed her, but that allegation was never supported by physical evidence. Links to other local cold cases have been examined without a definitive connection. Does anyone have memories, sightings or small details from October 1985 that could help reopen this trail?