End of Watch: February 7, 1971
A few minutes after shooting Officer Keeton, Greenberg shot Officer Beckstead during another traffic stop. It is believed that Officer Beckstead was not aware of the shooting involving Keeton. Officer Beckstead died two days later in a Gallup, N.M., hospital. After shooting the two DPS officers, Greenberg kidnapped and killed another person during the chase before New Mexico authorities shot and killed him.