 And once again, the snipers called into their command post, explaining that this suspicious man was now walking towards the back of the building. But nobody stopped him. Nobody took any physical action to prevent what they could evidently see coming. Apparently, all of these reports prompted some police officers to call for backup and try to scale the roof to stop the shooter, but they obviously failed to do so. The gunman climbed on top of the building using an air conditioning unit, not a ladder as previously reported, and fired several shots at Trump before he was taken out. So,