>> i go back around, jump back into the fight. i get slammed against the counter, black out. i was able to pull one of the guys down, still getting punched several times, and then pin him to the ground. >> other customers helped subdue one suspect and keep him inside the store. meanwhile, dylan the underdog here is still wrestling with the other robber when suddenly triumphantly he is able to pull the mask off the thief's face. >> that's when he turned and bolted. he pulled the shirt over his head. he came back and hit me one more time and that kind of dazed me. >> customers are still holding one robbery suspect in the store. but not for long. the other suspect and two of his friends run back into the store and begin pulling him out through the door. >> he had to call his friends to come and they had to drag the other guy out of the store. >> all four of the suspects flee the scene but with the help of devon's security tapes and witness descriptions police