A Salt Lake City truck driver has been charged with involuntary manslaughter in the death of a man fixing his vehicle alongside Interstate 80 on Wednesday morning, according to the Wyoming Highway Patrol.

Edward C. Barrowes, 48, was driving a semi tractor trailer westbound on I-80 when it left the travel lane about 19 miles west of Wamsutter, and crossed onto the shoulder where Aleksandr Kozak of Sacramento, Calif., was working on a disabled vehicle, according to the news release from Patrol Sgt. David Wagener.

The truck struck Kozak, 32, who died at the scene. He had set up warning triangles displayed to the rear of the vehicle visible to oncoming traffic for three-quarters of one mile.

Driving while fatigued is being investigated as the contributing factor in this crash.
Barrowes was charged with involuntary manslaughter, improper lane use, and driving while ill or fatigued.
The crash temporarily closed of the westbound side of the highway for about two hours.