alive. describe to me the emotions you were feeling. >> well, i did develop a sense of guilt because i thought i should have been able to do better. i -- i was the only one who had a chance to do anything because of the way the entire thing developed. i was on the left hand side of the car behind the president. the shots came over my right shoulder. when i looked towards the shots, i scanned the president's car and saw what happened. the other agents, they looked towards the noise and they were looking away from the president's car, so they didn't realize at first what had happened. by the time they looked back, it was too late for them to react or do anything. so i felt like i was the only one who had a chance, and i just couldn't do -- get there quick enough. so we had this responsibility to protect the president of the united states, and we failed that day. and that's bothered me ever