William Richard Ostertag, 45, disappeared from North Bay, Ontario, in the winter of 1990 after a final confirmed phone call with his brother on December 16, 1990. He worked as a cook at a fast-food restaurant on Maplewood Avenue and failed to report for his shift on December 17; he also missed a workplace Christmas party on December 21, an absence described as highly out of character. His employer filed a missing person report.

William had recently moved to North Bay after spending most of his life in Quebec. He was described as 5 feet 8 inches, about 146 pounds, with short combed-over black hair, hazel eyes, a moustache with sideburns and visible tooth decay. He commonly hitchhiked and may have been wearing a blue or grey coat and possibly white pants when last seen. He told some acquaintances he planned to be out of town December 18 to 20 but did not say where; family confirmed he did not visit them then.

The North Bay Police Service has kept the investigation open and periodically sought public help, but the trail went cold and the case remains unsolved. Does anyone have memories of William, his routine in North Bay, or information about his movements in mid-December 1990?