Texas law enforcement agencies are facing escalating criticism over their response to the mass shooting at Robb elementary school in Uvalde, after it emerged that the gunman remained locked inside a classroom for up to an hour while large numbers of police officers massed outside the room without taking any action.
At a press conference on Thursday afternoon, Texas authorities confirmed that the shooter had been locked inside a classroom for an hour before he was confronted and killed. He committed all his 21 murders inside that room – including 19 children and two teachers.
