According to the Tooele County Sheriff's Office, Mark Richard Johnson, 37, was killed while driving on State Road 138 just west of Stansbury Park. The sheriff's office says Johnson, of Stansbury Park, was involved in a domestic dispute earlier in the day, and deputies had been looking for Johnson so they could question him.
Sheriff's Sgt. Jason Sparks found Johnson's vehicle near the Stansbury Park area and followed it to confirm that it was registered to Johnson. After Sparks tried to stop the vehicle, Johnson drove away, according to the sheriff's office. Authorities say Johnson ran a stop sign while turning on to SR-138. Sparks then turned on his lights and siren as he followed the vehicle. Shortly after, Johnson's vehicle swerved and ran off the road, causing it to roll.
Authorities say Johnson was not wearing a seatbelt and was thrown from the vehicle, which rolled on top of him. Johnson was taken to Mountain West Medical Center where he was pronounced dead. The incident is being investigated by the Utah Highway Patrol.