The Uvalde school district's police chief Pete Arredondo was one of the first officers to arrive during the Robb Elementary School shooting, but he didn't have a radio to communicate with other law enforcement officers.

A New York Times examination published Friday found that Arredondo used his cellphone to call the police landline and tell officers that the shooter was "contained."

Nineteen children and two adult teachers were killed in the shooting as authorities delayed their response for approximately an hour.

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