 But you can't really have a gun-free zone that has an open roof. Well, and of course, the shooter was outside of the zone. He didn't even go into the venue where they were. He just was outside of it but on a roof so he could see over the wall and see in. It's ludicrous that he could be on a roof only 150 yards away with line of sight to Trump. It's just crazy. Scarier thought still.