Uvalde's school Police Chief Pete Arredondo's account of the mass shooting at Robb Elementary was opposed to statements from the Texas Department of Public Safety.
"Now you have two competing narratives, none of which makes sense, because it's in contrast to what the Department of Public Safety has said," he said.
Nineteen children and two teachers were killed and 17 other people were injured by an 18-year-old man. Arredondo and 19 other officers spent over an hour waiting in a hallway outside as the man in the classroom barricaded himself.
The police chief for the Uvalde Consolidated Independent School District disappeared from the public eye after the mass shooting.
In an interview with the Texas Tribune, Arredondo said that he didn't think he was in charge of the shooting and that he didn't have his radios on.
The Texas Department of Public Safety said that Arredondo called the shooter a barricaded subject rather than an active shooter.
Arredondo was not cooperating with the investigation by the Department of Public Safety.
Parents were handcuffed by police after they begged officers to let them into the school to save their children.
The parent told the Wall Street Journal that the police didn't do anything while the shooter was in the school.
"We have all failed" and "everyone was to blame" for the mass shooting in Uvalde, according to a statement made by the man.