On a February evening in 1971, 27-year-old Arizona Highway Patrolman James Lee Keeton was killed after a routine traffic stop on Interstate 40 just west of Houck, Arizona. A passing motorist saw a struggle inside Keeton’s patrol car and Greenberg obtained the officer’s service revolver. Keeton managed to send a distress call but was fatally shot at the scene with his own weapon, and Greenberg drove off in the Pontiac.

Minutes later, Greenberg shot and wounded another Highway Patrolman, Don Allen Beckstead, during a separate stop east of Houck; Beckstead died of his wounds two days later. The account reports Greenberg went on to kidnap and kill another person before being located and shot dead by law enforcement. Does anyone have memories of these I-40 stops or the Pontiac involved that could shed more light on the sequence of events?