steve? >> reporter: a lot of what we're seeing from above, we saw filter out on the ground. police swarming this scene shortly after that shooting took place. speaking to victims as has been mentioned all throughout this morning, a lot of them thought that that original gunfire was some sort of fireworks or some sort of sound that was part of the show, just not recognizing the sound of constant automatic gunfire raining down. who would think that that's what it was? people looked up and confirmed that, and then you had a mass panic. people trying to leave that scene as quickly as humanly possible. a lot of people using, unfortunately, the bodies of victims as cover to avoid further fire. a lot of people ducking into buildings, ducking into bushes. some accounts of victims hiding for hours not knowing what's happening on the outside. terrified to come out. we actually have seen some of