William John Gill, 23, disappeared from Saskatoon in the early morning hours of December 21, 1981. He was last seen leaving an apartment on Appleby Drive after spending the previous evening with a co-worker at a local nightclub. At the time he vanished he was described as 5 feet 10 inches, about 164 pounds, with brown hair, green eyes and a moustache; he wore dark-framed glasses, a white dress shirt and dress pants, and may have been wearing a suit jacket and tie.

The case eventually became a cold file for the Saskatoon Police Service. Investigators have said they believe one or two people who were last with William may know more than they originally shared; police re-interviewed those individuals around the 25th anniversary in December 2006. Authorities believe William is deceased, and his file remains among roughly 20 cold cases the department is working.

Friends and family continue to seek answers and hope someone with information will come forward. If anyone knew William, his movements that night, or has information that could help resolve this disappearance, please share what is known.