Pete Arredondo's resignation was accepted by the Uvalde City Council.

Pedro "Pete" Arredondo resigned from Uvalde City Council on Tuesday.

Arredondo resigned from the city council to "minimise distractions"

"The Mayor, City Council, and City Staff must move forward," Arredondo said.

CNN initially contacted Arredondo's lawyer for comment on his resignation letter.

The Austin American-Statesman publicised security footage from the incident, triggering city council action.

In manipulated footage, the gunman is seen wielding a lengthy weapon.

As gunshots are heard, officers can be seen walking toward the classroom but swiftly retreating down the hallway.

State officials named the district police chief in charge of the May 24 Robb Elementary School incident.

Col. Steven McCraw, director of the Texas Department of Public Safety, criticised Arredondo's "abject inadequacies"

Arredondo was elected to local council weeks before the shooting. Secretly sworn in after the attack.

Off-camera audience members praised Tuesday's vote to accept Arredondo's resignation.