nell jones is at her desk. >> and i was just sitting looking at my computer screen and i heard what i thought was about five loud noises, bangs, pops. >> the blood was starting to go everywhere. i was scared to death. i was scared to death. i had to get out of there. >> nell turns to question barton about the noise she's heard coming from the office. one look at his face tells her something is terribly wrong. >> and his eyes met mine and for a moment we just locked in mutual communication, and he seemed very, very sad. for a moment i felt incredible sadness in this person. and then suddenly he broke eye contact. i just gasped and pulled back just as the bullet passed right in front of my forehead and smashed into my computer screen. >> with barton's attention focused in the main room, brent doonan, wounded and bleeding on the office floor, uses the opportunity to make his escape. >> i knew if i lay there, that i was going to die. i just charged him and pushed him -- pushed him away as i went, and luckily he didn't cap me as i was going across. maybe he was just stunned. but i made it