(IDAHO FALLS, ID) — Investigators have released more details about a fatal shooting east of Idaho Falls Saturday. Authorities say 21-year-old Kristy Aschilman was riding in a car with two men when the driver veered off the road and the occupants got out and began running in different directions. That’s when 22-year-old Adan Arroyo reportedly shot and killed Aschilman. Officials are still working to determine a motive for the shooting. Arroyo is being held on a murder charge without bond.