Trooper Cody Donahue was struck and killed by a commercial vehicle on northbound I-25, at Tomah Road, near Castle Rock.
He was investigating a minor traffic crash when the commercial vehicle struck him while he was outside of his patrol car with another trooper. He was wearing a reflective vest at the time he was struck.
Trooper Donahue had served with the Colorado State Patrol for 11 years. He is survived by his wife and two young children.