EVANSTON (WNE) — At approximately 6 p.m. on Sunday, Nov. 14, the Wyoming Highway Patrol was called to the scene of an accident on Highway 189 at mile marker 8.9.

A red Subaru Outback with Utah plates had hit a deer and the vehicle had come to rest in the middle of the highway. The Subaru had been rendered totally disabled and all lights had been knocked out.

Two people who had been in the vehicle exited the car — 66-year-old Amy Castillo and her son-in-law Alan Wilder, 34 years, both from Salt Lake City, Utah.

WHP Sgt. Remington Roberts told the Herald that people from cars that stopped to offer assistance said they had walked over to the wreck and led Castillo over to the parked cars.

Witnesses told Roberts that they were trying to determine how to move the Subaru from the middle of the highway and Wilder had returned to the Subaru and was sitting in the driver’s side of the car, attempting to see if he could get it started.

Unknown to the witnesses, Castillo had wandered over to stand by the driver’s side of the car and was on her phone with the 911 operator when a Mitsubishi Lancer traveling north hit the Subaru, glancing off the front of it and hitting Castillo fatally.

“This was a tragic accident and no fault of the driver of the Mitsubishi,” Roberts said. “It was very sad for all involved.”