Just like at Columbine and Parkland, Uvalde cops and state troopers waited outside Robb Elementary for nearly an hour while the killing was going on. Milling around. While parents frantically urged them to go in, but they wouldn’t. Some of the parents were arrested. It took a Border Patrol unit (some reports say just one BP officer) to go in and kill the killer. Disgraceful. Utterly shameful.