less than 50 yards from the explosion in the car with its hazard lights flashing is carl bostic. >> i, get out of the car. the security guard says, no, no, no, we're not the target. we're not the target. stay in the car. don't get outside. it's a good thing we didn't get outside because there was gunfire everywhere. >> carl talks with nbc news headquarters from his car. despite the life-threatening situation, he stays professional and calm. >> right now, we're trying to stay together. we're not getting out of the car. we're trying to negotiate with the police. it's a very, very tense situation. >> but he's scared to death. >> quite frankly, i was just waiting for the fourth one to go off, because each one, it felt like it was coming from underneath the floor. then i was thinking, gee, it keeps getting closer and closer. maybe if it's the next one, maybe i'll just be injured. so then i started thinking, well, if i had to get injured, what part of my body could i afford to lose and not miss. >> two members of his security detail are injured, but carl and his crew eventually make it back