Uvalde surveillance footage shows police response as gunman murdered 19 children and 2 adults

Portions of surveillance footage of the Robb Elementary School shooting were published by the Austin American-Statesman and KVUE on Tuesday ahead of a planned release by officials on Sunday. 

The footage shows the gunman, who authorities have identified as 18-year-old Salvador Ramos, firing multiple shots from an AR-15 style rifle outside the school, then entering the building at 11:33 a.m. and shooting his way into adjoining classrooms. 

A barrage of more than 100 bullets were fired inside those two classrooms over the next two-and-a-half minutes before seven officers ran into the school at 11:36,...