 Folks that are under constant threat because of the high profile that they boast in our community. And as you hear things that are going on, like the shooter, how the shooter got onto the roof is pretty bizarre. At 510, according to congressional sources, law enforcement identifying Crooks as a person of interest. Police believe he used AC units to climb up and gain access to the roof of a building and eventually made his way to the perch where he had a direct line of sight to the former president.