less than 50 yards from the explosion in the car with its hazard lights flashing is carl bostic. >> i jesus, we have to get out of here, 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 an