Patrol Agent Oscar T. Torres was assigned the midnight to 8:00 a.m. shift on November 30, 1974, in the El Paso Station area. At approximately 2:30 a.m., he proceeded to the West Railroad Bridge to assist in opening the gates for a train inbound from Mexico.

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Agent Torres and Patrol Agent (Trainee) Robert M. Worsham walked onto the bridge to open the gates while Worsham's partner, Patrol Agent Wayne Winn, Jr., remained with an apprehended alien in a Border Patrol vehicle at the end of the bridge. After opening the gates, and while walking back toward the vehicle, Agent Torres stumbled and fell headfirst through an opening in the bridge to the river bottom, a distance of 25 feet. The fall was witnessed only by the alien, as Trainee Worsham and Agent Winn were not facing toward Torres when the accident took place. The agents immediately went to the aid of Agent Torres, and an ambulance soon removed him to Providence Memorial Hospital. He expired at 4:55 a.m., the cause of death being listed as concussion.