Edward Colin Colteaux, 38, was shot and killed during a confrontation near Interstate 10 and St. Mary’s Road in Tucson on October 9, 2021. An off-duty U.S. Border Patrol agent reportedly intervened in the altercation and discharged his firearm, striking Colteaux. Responding Tucson Police officers and Tucson Fire Department personnel rendered aid, but Colteaux was pronounced dead at the scene at about 9:48 p.m.

The Tucson Police Department opened a criminal investigation into the shooting, and the Border Patrol began an administrative inquiry into the off-duty agent’s actions. Initial reports noted no arrests or charges had been filed and called for anyone with information to contact investigators. There have been no public updates about the investigations or any legal action.

If anyone witnessed the confrontation near I-10 and St. Mary’s Road that evening or has relevant information, please share what is known with Tucson authorities.