>> john schumo in new york. thank you, john. >>> gunfire at a country music festival in las vegas. the festival was taking place across the mandalay bay ho tell. the shooter was selling from across the street with possibly a weapon of some kind. john blackstone is there. do i understand there are witnesses with you? >> reporter: paul and monique dumas came from canada, british columbia, and indeed they know this was a hay-powered automatic weapon, semiautomatic weapon being used here. paul, tell us what you saw, paul and monique. >> we were town at center stage having a good time, jason was playing, and all of a sudden we heard pop, pop, pop, pop, pop, countless times. it sounded like firecrackers. then he fired more rounds and that's when it sounded like a fully loaded automatic. we lied down and clung to each other. that was it. another 30 rounds. every time he stopped, he was reloading, we had got p up making ow way toward the fence. then he started shooting again and hit the ground. i must have heard him do it at least 15 times. >> monique, what are you thinking when you're lyi