BLACK FOREST, Colo. -

State Patrol is investigating a deadly accident on Black Forest Road where the driver possibly fell asleep behind the wheel.

It happened on Black Forest Road about a half mile north of Shoup Road in Black Forest earlier Saturday morning. The victim is Jessie Boos, 26, from Larkspur.

Boos drove south on Black Forest Road when he lost control and drifted off the road, State Patrol said. He swerved back onto the road, causing the truck to roll.

Boos was not wearing his seat belt, State Patrol said. Boos possibly fell asleep, but State Patrol said the crash is still under investigation.