OKLAHOMA HIGHWAY PATROL / MUG: Trooper Larry Crabtree Crabtree joined the OHP in 1964. He received a report from an attendant at the Heyburn Station that a vehicle had jumped a curb and crossed a ditch to reach the turnpike instead of using the entrance ramp. Crabtree stopped the vehicle and as he approached the vehicle, the sixteen-year-old driver turned and fired one shotgun blast at point-blank range. A Citizen Band radio-equipped motorist who witnessed the murder alerted troopers who arrested the five occupants of the vehicle. Three juveniles were later released. The boy was subsequently convicted of murder and sentenced to death.