tiffany craig of our houston station khou reports. >> reporter: it was terror inside terminal b. >> he open-range started shooting. open-range started shooting. >> reporter: kendra and plenty of passengers saw it or heard it and scattered. >> we took off. customers took off. everybody. we had a line. everything took off. we're right there in the front. and when he was shooting free will, you know, anybody could have got that shot. anybody could have got that shot. >> reporter: houston police say carnell moore walked in with an ar-15 and then pulled out another gun, a handgun, and then fired it at the ticket ceiling and then turned it on himself just as a special agent came out of a nearby office and shot at him. >> i mean it happened right in the airport. real crazy. >> reporter: it became a crime scene leaving plenty of passengers stranded. >> nothing, no one from united is anywhere in sight interestingly. >> reporter: dale howard was here picking up his sister from a funeral. >> i was standing right there at the bottom of the escalator, and i heard two gunshots, short delay, three mo