For more than 70 minutes, officers waited outside a classroom while 19 children and two teachers lay dead and dying inside Robb Elementary. MORE: https://www.wfaa.com/article/news/special-reports/uvalde-school-shooting/uvalde-school-shooting-robb-elementary-texas-dps-official-on-uvalde-shooting-it-was-the-wrong-decision-for-police-not-breach-classroom/287-bda41394-0e4d-4eac-9ecd-d2e86939e890