COMING UP: Don't miss Xfinity Monday Live, with special guest Rockies pitcher Chad Bettis. Watch it on CBS4 at 6:30 p.m. or head to ViewHouse Centennial to see it live!
'Standard Response Protocol' Created After Platte Canyon School TragedyThe actions of "lock out, lock down, evacuate and shelter" is now language for students and staff when a crisis happens in schools. It's used in some of the largest school districts in Colorado and in more than 5,000 districts nationwide.

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