Prayers with no action on the who a horizon. Good morning. Im Christine Romans in new york. Im dave briggs. It is 4 00 a. M. Here in parkland, florida. People waking up to the recurring nightmare. Helpless to stop the gun violence plaguing the country. 17 People Killed at Marjory Stoneman douglas high school. An hour north of miami. Five patients in life threatening condition. Ten others hospitalized with n nonlife threatening injuries. 12 victims of the deadly rampage have been identified. Here now are a few seconds of the horror they went through inside the high school that will never been the same. We want to warn you this video is disturbing. Holy [ bleep ] oh, my god students will never get out of their minds. Officials say that is the sound of the ar15 rifle firedly lby former student nikolas cruz. Cnn learned how the attack began. The shooter wore a gas mask and he had a smoke grenade. He went and setoff the fire alarm so the kids would come pouring out of the classrooms and int