Authorities took an hour to stop Uvalde gunman, raising questions about law enforcement response

A gunman who killed 19 children and two teachers at a South Texas elementary school walked unopposed onto school grounds, state law enforcement officials said Thursday — and once he was inside, it took police an hour to stop him.

In the days after the massacre at Robb Elementary School in Uvalde, officials with the Texas Department of Public Safety said the shooter encountered a police officer employed by the school district before charging through a back door.