Sgt. Manuel H. Tapia was shot on the night of January 7, 1991, in Nogales by a drug suspect after a traffic stop. Upon asking the suspect, Noel Gonzales-Bernal, to open the vehicle's trunk, he fled on foot with Sgt. Tapia chasing him. The suspect then turned and shot Sgt. Tapia. The suspect was fatally shot by a Nogales police officer. It was later learned that Sgt. Tapia was unarmed, having inadvertently left his weapon in his vehicle. He died the next morning, January 8, 1991, at Tucson Medical Center.