Uvalde CCTV shows police standing in school corridor while gunman fires – video

Surveillance footage captured the gunman in the Uvalde school shooting entering the building with a AR-15-style rifle and later shows officers in body armour waiting in the hallway outside the classrooms where 19 children and two teachers were killed.

The footage, published on Tuesday by the Austin American-Statesman, shows periods of the nearly 80 minutes that passed between the gunman walking into Robb elementary school and his being shot dead by officers.

The edited footage was published as Texas lawmakers investigating the massacre are preparing to release their findings

• Uvalde surveillance video shows police lingering in school hallway