Uvalde shooting: surveillance video shows police lingering in school hallway

Newly published footage shows officers in body armor waiting outside the fourth-grade classroom where the 21 were killed

Newly published surveillance footage has prompted fresh criticism of the police response to the mass shooting inside an Uvalde school in which 19 children and two teachers died.

The video, published on Tuesday by the Austin American-Statesman and the local television channel KVUE shows the gunman entering Robb Elementary school with an AR-15-style rifle, and later shows officers in body armor waiting in the hallway outside the fourth-grade classroom where the 21 people were killed.