president Trump shot in Pennsylvania

I can almost see a USSS agent not being willing to shoot someone with a rifle on a roof 130 yards away from the person who will be the next POTUS but I can't see him not relaying the information that he has eyes on a subject with a gun on a roof 130 yards away to the rest of the team and having any reaction from the team be anything but jumping on top of Trump and getting him off the stage before shots were fired. Seriously, what kind of stupid shit was going on there?