Gregory Walker, 65, of Crest Hill, died as the result of a gunshot wound, the Will County coroner's office said. His identity was released Friday after the coroner's office located and notified his family after "an exhaustive search" involving the cold case squad. The coroner's office said an autopsy was performed on Wednesday. A final cause and manner of his death will be determined later, pending police, autopsy and toxicological reports.