Riordan was standing on a corner waiting to cross the street with his wife Sonya when the driver of a motorcycle hit a curb while turning. The driver and passenger were both thrown from the motorcycle.
Riordan said he used his army training as a combat lifesaver to determine that the female passenger was injured worse than the driver and administer first aid to her. She complained of back pain, and Riordan made sure she remained still and kept her calm until paramedics arrived in an ambulance.
Sonya Riordan kept the driver calm.
The Riordans were in Denver attending a Yellow Ribbon Reintegration event with the 88th Regional Support Command from Fort McCoy, Wisc. Riordan returned from deployment in Iraq at Camp Liberty in May.