While standing near a motorist he had stopped for speeding, 20 miles south of Phoenix on Interstate 10, Sgt. Mark Dryer was struck and killed by a passing car driven by Charles Robert Ransier, 33, of Phoenix. Sgt. Dryer was the first DPS reserve officer to be killed in the line of duty. The motorist, who was under the influence of drugs at the time of the incident, was sentenced in May 1995 to 15 years in an Arizona state prison. The Department’s Reserve Officer of the Year Award is named in Sgt. Dryer’s honor.