A Tulsa man was killed when his car rolled over Friday night.
Traffic investigators said 47-year-old David Hall rolled his pickup near Highway 75 and the Broken Arrow Expressway.
Police said Hall had just hit a car trying to change lanes while getting off 75 and onto the B.A. eastbound.
That didn't cause much damage, but he didn't stop.
"And then [he] traveled a little further east. For some reason that we don't know yet, left the highway and hit a couple trees and a fence, which caused the truck to roll," said Tulsa Police Corporal, Steve Wood.
Investigators are waiting for the medical examiner to determine what caused Hall to run off the road.