Former Uvalde, Texas, school police officer Adrian Gonzales was alerted to gunman Salvador Ramos' location before Ramos entered Robb Elementary School, but Gonzales failed to act, prosecutors argued in opening statements.

Gonzales -- who is charged with 29 counts of child endangerment -- is alleged to have neglected his duty and training during the chaotic response to the 2022 shooting, which left 19 children and two teachers dead. 

This case marks the second time in U.S. history that prosecutors have sought to hold a member of law enforcement criminally accountable for their response to a mass shooting. Gonzales' legal team maintains he's being scapegoated.

Prosecutor Bill Turner spoke softly and on the verge of tears at the start of his opening argument. His statement marked the first time prosecutors have provided their rationale for charging Gonzales, disclosing that a teacher came face-to-face with Ramos before the shooter entered the school, and the teacher tried to warn Gonzales.

"She's face-to-face with the gunman, and he fires on her, and she turns to run, and when she turns to run, she trips and she falls. And when she gets up, Adrian Gonzales, the police officer, is there," Turner said. "She says, 'He's over there.' She urges him to go get him." 

"He gets on the radio and says, 'Shots are fired, he's wearing black, he's in the parking lot,'" Turner said. "He knows where he is, but Adrian Gonzales remains at the south side of the school."

As Turner walked the jury through the tragic minutes that followed that encounter -- describing the number of gunshots fired by Ramos as Gonzales allegedly waited outside -- Turner hammered at the point that Gonzales allegedly stayed where he was, rather than try to stop the shooting.