one of the injured tsa officers spoke out for the first time talking about his encounter with the gunman after helping an elderly man to a safe area. >> i turned around and there was a gunman who shot me twice. i was shot in the foot. after i was shot i got to the area where the planes were at. and people were coming towards me and asking me, you know, were you shot, what's going on. i was like, and i, all i could think about was, you know, helping them, you know, i may be injured right now, but the concern is really to take care of you. >> that comes on the heels of new information that police visited the alleged gunman's apartment the day of the shooting. they got a tip. but it turns out they missed him. and the chance to save a live by just minutes. stephanie elam is out front.