Albert George Riddy, 53, was last seen at his Calgary-area residence sometime between April 5 and July 30, 2013. The exact date he disappeared is unknown and the circumstances are described as suspicious. The Calgary Police Service is investigating and the case remains open.

Riddy is described as a Caucasian male, slender, 5 feet 10 inches and about 110 pounds, with grey hair and green eyes. Distinguishing marks include a shoulder deformity and a protruding collarbone, a scar on his right shin and a skin graft scar on his left forearm—details authorities say could help identify him.

No confirmed whereabouts or resolution are noted. If anyone knew Albert, saw him in Calgary between April and July 2013, or has information that could help, please come forward to the Calgary Police Service.