 Did they see him? Probably not, because the roof, the way the slope went, he was behind where they could see. But why is there not Secret Service on all of these roofs here? That is the eyewitness account talking to the BBC about what they saw before the shooting. Before the shooting, that's what he was trying to say. He could not get any cop to pay attention to him. And we're going to find out, because the Secret Service is going to be giving a classified briefing