. >> in his apartment near the intersection, patrick murray has heard an explosion. >> i immediatelyame over to the balcony where i saw a lot of black smoke. i saw the vehicle on fire. i grabbed a camera to videotape it. >> at the same time, chris oxley is heading toward the intersection with his son in the car, on the way to a baseball game. >> we saw a big fireball in front of us, then smoke rising from the fireball. we had a mushroom cloud on top of that probably went two to three stories up. the whole road was on fire. my son was terrified about it, because he was asking me dad, do we have to go towards this, this is scaring me. >> but he hears steve shouting for help. so chris stops the car and jumps out, telling his son to stay in the car. >> somebody's life, you know, was probably in danger. >> i thought it was going to blow up so i was trying to get him out and get him as far away from the car as we could. >> the inside of the car was starting now to catch on fire, and we had trouble pulling the person out of the car. >> as they struggled, other good samaritans appear. >> som