 both stressing that violence is not acceptable as part of American politics. Over at Tulsa Police, Sergeant Dave Walker has more than a decade of SWAT experience under his belt and has even served on presidential protective details. Sergeant Walker says he doesn't understand how a gunman could have so easily crawled under a rooftop about 150 yards away from where former President Trump was giving his speech. It kind of goes beyond anything I can sense that would take place.