reporter: what was going on in your mind? get everything out of the building because there was a shooting. reporter: could you believe what was going on? no. you never believe anything like this is going to happen in your building. reporter: what were you doing at the time? we were just working at our dis disks desks and occasionally there s a drill and then there was an announcement and our fire wardens celled for everyone to get out. that s miss terry durham, is who you are now and this is todd. correct. reporter: again, what did you think? when you saw this guy aim a gun? just get out as quick as you can. just get out. i mean, everybody is going down the stairs, people were pushing, shoving, people were falling down. as we came outside, people were