 They operate under Graham v. Conner use of force rules. We all know Graham v. Conner use of force rules, I think. Don't we? We teach that in high school now. They would have to have had a perceived threat. You can't just shoot the guy. Well, he was on the roof. That would probably be frowned upon, depending. Eventually, however, Crooks, the 20-year-old, made it up onto the roof.