Days after a Texas school shooting left 19 children and two teachers dead, witnesses are sharing details about the frustrating moments they arrived at Robb Elementary school in Uvalde after learning of an active shooter situation. Onlookers say they urged responding officers to charge the school as the 18-year-old gunman was inside killing people in one classroom. Subscribe to LiveNOW from FOX! https://www.youtube.com/livenowfox?sub_confirmation=1 Where to watch LiveNOW from FOX: https://www.livenowfox.com/ Follow us @LiveNOWFOX on Twitter: https://twitter.com/livenowfox Raw and unfiltered. Watch a non-stop stream of breaking news, live events and stories across the nation. Limited commentary. No opinion. Experience LiveNOW from FOX.