a crowd surged a stage at the aft troeworld festival. unvictims injured is just 10 years old. as many as 50,000 people attended the festival when a crowd rushed the stage as rapper travis scott was performing, and then earlier in the day friday, a stampede of people running through the v.i.p. entransient erg the event. see it there on video. several metal detectors even people were knocked to the ground. at least one person injured during that moment. cnn s rosa flores is in houston for us. what more are we learning about the sequence of events that led up to tragedy? reporter: well, fred, what authorities tell us. that there s about 50,000 people in this crowded area, and at about 9:15 p.m., they say that that is when the crowd started compressing towards the front of the stage. that s when panic ensued. by 9:38, they say this turned