JACKSON (WNE) — Alarmed eyewitnesses called 911 about an erratic, swerving driver on New Year’s Day just minutes before her SUV crashed into another vehicle in Hoback Canyon, killing its occupant.

Twenty-eight-year-old Jade S. Jewkes, of Jackson, is being held in Sublette County Jail on charges of aggravated vehicle homicide, Wyoming Highway Patrol Lt. Klief Guenther said. Alcohol impairment is being investigated as a factor, but her blood alcohol level is not yet known.

Shane Deal, of Pinedale, was gravely injured in the crash, Guenther said, which happened at about 3:15 p.m. Friday on Highway 191 just north of Granite Creek. A helicopter picked him up and headed for Eastern Idaho Regional Medical Center, but weather diverted them to St. John’s Health, where Deal succumbed to his injuries. He was 39.

After buying a 1993 Ford F-250 truck with a snowplow in Idaho, Deal was driving the rig home to Pinedale, Guenther said, trailed by his sister, and Jewkes was northbound in a 2015 Jeep Cherokee Liberty. Her vehicle crossed into the southbound lane and struck Deal’s truck head-on.

Jewkes was treated for minor injuries at St. John’s Health, taken into custody by troopers and transported to the jail in Pinedale, where she is set to appear in a preliminary hearing Monday morning.