WHY didn't they go in? Chilling first image emerges from inside Texas school showing cops with rifles and ballistic shields in corridor 19 minutes after gunman entered - but they waited another FIFTY-EIGHT MINUTES to storm classroom | Mail Online

https://www.dailymail.co.uk/news/article-10936129/First-pic-inside-Texas-school-shows-cops-rifles-shield-NINETEEN-MINS-gunman-entered.html