Officer Gregory A. Diley
EOW: December 2nd, 1977
Officer Diley, 28, was returning to Kingman following a narcotics investigation when he was killed in a one-vehicle crash west of Kingman on Interstate 40. He had been working with the Mohave County Cooperative Enforcement Unit where he had been assigned for several months. The death of Officer Diley, who was assigned to the Criminal Investigation Bureau at DPS, was the first outside the Highway Patrol Bureau. Officer Diley was stationed in Kingman since he joined the department in September of 1973.
Gregory A. Diley Memorial Site
Arizona DPS District 1 headquarters Kingman, AZ