 an event, and sets up a perimeter. They set up generally three rings of protection, an inner ring, which is where the event is, a middle ring, and then an outer ring. From what I understand, this shooter was outside of those three perimeters and brought a rifle to the event and decided he was going to act on his impulses against former President Trump. The interesting thing to me to find out is why, because any time there's an attempted assassination or assassination attempt,