Shelley-Anne Bacsu was 16 when she disappeared from Hinton, Alberta, on the evening of May 3, 1983. After babysitting in the Sunset Trailer Park she phoned her mother around 8:00 p.m. saying she was walking home and looking forward to dinner. Witnesses later saw her walking west along Highway 16 toward a home about seven kilometres away. She was described as petite, 4 feet 11 inches, with brown hair and brown eyes, wearing a burgundy velour sweater, a burgundy and grey jacket, blue jeans and carrying a blue school binder.

A few days after she vanished personal items were found near the Athabasca River off Highway 40: her jacket, student card, a bra, pantyhose and a library book. Some witnesses reported seeing a young girl being pushed or pulled into an unfamiliar van that evening. In 2019 forensic re-examination of the clothing produced two DNA profiles: one matching Shelley-Anne and a second unknown profile not in the national databank. The RCMP Historical Homicide Unit continues to list the case as active and a $50,000 reward has been offered for information leading to the recovery of her remains.

If anyone in Hinton that night remembers seeing Shelley-Anne, the van described, or has information that might help locate her, please come forward.