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Wyoming Highway Patrol investigators say vehicular homicide charges have been filed against the driver of a semi-trailer rig involved in a head-on collision that killed a Sandy, Utah couple.

WHP Sgt. David Wagener said fatigue may have been a factor when the northbound truck, driven by 58-year-old Charles Gibson, of Midwest City, Okla., drifted into the southbound lane of U.S. Highway 287 and struck an SUV being driven by Dawn Wight, 46.

Mrs. Wight, along with her 57-year-old husband, Robert Wight, both died at the scene of the 11 p.m. Nov. 10 collision, about 13 miles south of Laramie. Their teenage sons, Kyle and Karsen, were flown to a Denver hospital in serious condition with broken bones and internal injuries.

Gibson, who escaped his burning big rig without serious injury, was arrested at the scene, WHP said.

The Wights reportedly were driving to Colorado for a youth hockey tournament at the time of the crash.

A GoFundMe page ( has been set up by the Brighton High School hockey team to help with the family's medical expenses.

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