Joseph Thomas Zerk, 55, was last seen in Edmonton, Alberta, on December 1, 2008. He had no fixed address and was known to experience homelessness and serious health problems. Family reported him missing a month after he was last heard from in November 2008 because not hearing from him was unusual.

Zerk was described as a Caucasian male, 6 feet tall, about 165 pounds, with medium-length grey hair, blue eyes, a grey moustache, dentures, a scar on his right arm and a deformity of his small left toe. He had ties to Grande Prairie and Fort McMurray. His whereabouts remain unknown; anyone with information is asked to come forward.