Calvin Walker, 49, was killed on July 26, 2011, at a residence on 6110 Hecla Street in Detroit.

The case is listed in cold case files and remains open with no public information about suspects or arrests. The Detroit Police Department retains the file and the investigation appears to have no active leads.

If anyone knew Calvin Walker, lived near Hecla Street in 2011, or has information that could help move this cold case, please come forward.