Off-duty Border Patrol agent who responded to the Texas school shooting defends cops' actions during the massacre

• An off-duty US Customs and Border Protection agent who went to the scene of the Uvalde school shooting defended cops' actions during the massacre.
• "I believe they were doing everything in their power they could do," Jacob Albarado told CBS News.

An off-duty US Customs and Border Protection agent who responded to the shooting at Robb Elementary School in Uvalde, Texas, last week defended police actions during the massacre.

Jacob Albarado told CBS News he thought the officers at the school did everything they could at the time of the attack.

"I can't speak on their behalf, on what they were doing and how they were assessing the situation because I wasn't there," he admitted. "I wasn't trying to breach the door. I don't know what was happening in their mind."

He continued: "I know my fellow officers and, to me, I believe they were doing everything in their power they could do."

In the latest timeline account of the day, police said the gunman was barricaded inside a classroom with students for roughly an hour before officials infiltrated the room and killed the suspect.

Ultimately, the gunman fatally shot 19 students and two teachers.

As the shooting continued, a video showed parents begging police officers to let them into the school to rescue their children.

Texas police are now facing backlash over the delayed response and the ever-changing timeline of events that day.

Texas Department of Public Safety Steven McCraw has since said that a police commander in charge of the scene — Uvalde Consolidated Independent School District Police Chief Pete Arredondo — made the "wrong" decision in refusing to immediately send police into the classroom to stop the shooting.