 And by the way, the witnesses who saw that guy get up on the roof, they gave the police, and hence the Secret Service, at least minutes of warning. But part of the problem was that roof sloped upward toward where it then goes downward, and that man was able to bear crawl up that roof out of sight of the Secret Service snipers who were about the same distance away from the podium, and they were able to take the shot once they saw the guy.