World News Roundup Late Edition

Hallway surveillance video at Robb Elementary School in Uvalde, Texas shows police officers responding, then retreating as gunshots ring out in a classroom. CBS' Jennifer Keiper has that story and more in this "World News Roundup Late Edition." See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.