you see two guys in masks creeping around an exxon gas station. so i think you might know what's about to happen. police say these two men are cory miller and joshua stewart. before they make it in the building, a friend of the clerk working, a man named hasab was watching. >> behind building is two guys with masks. >> hasab runs in there ahead of them to warn the clerk about what's about to happen. then you see miller and stewart crawling close to the front door. hasab on the inside tries to sort of block the door here but miller immediately starts shooting. >> oh. >> at hasab. you see him run for it, and see miller's hand gun right there, pulling it directly at hasab. keep in mind the clerk, leo carr, had a few seconds to prepare for what was about to happen. >> oh. what did he do? >> leo carr also has a weapon. >> oh. >> he shot and killed miller, protecting his friend hasab who warned him about what was about to happen. >> he saved my life too. because the guy was going to shoot me. >> oh, my gosh. after miller's shot, stewart, the other guy i