On Wednesday (May 25), officials released new details regarding the May 24 mass school shooting in Uvalde, Texas.

Authorities say 18-year-old Salvador Ramos was at Robb Elementary School for up to an hour before law enforcement forced their way into a classroom and shot and killed him. Texas Department of Public Safety Director Steven McCraw told CNN, “It’s going to be within, like 40 minutes or something, [within] an hour.”

Rep. Tony Gonzales shared that a standoff involving the suspect and officers lasted about 30 minutes after students and teachers were shot.

“And then [the shooting] stops, and he barricades himself in. That’s where there’s kind of a lull in the action,” Gonzales said. “All of it, I understand, lasted about an hour, but this is where there’s kind of a 30-minute lull. They feel as if they’ve got him barricaded in. The rest of the students in the school are now leaving.”

In a press conference from yesterday (May 26), Regional Director for the Texas Department of Public Safety Victor Escalon said that law enforcement used that lull to evacuate the rest of the building. Escalon also mentioned that officers used that time to call for backup.

Raul Ortiz, Chief of the US Border Patrol, shared that Border Patrol tactical team members, a search and rescue responder and other agents joined local police to form a team that went after the gunman.

Ortiz praised their efforts, saying, “They didn’t hesitate. They came up with a plan. They entered that classroom and they took care of the situation as quickly as they possibly could.”

Officials described Ramos as a local high school dropout without any known mental health issues and no criminal record. He had recently turned 18 and purchased two AR-15-style assault rifles and ammunition for his birthday.

Ramos’ family said they did not know of his plans. His grandfather, Rolando Reyes, said, “If I had known, I would have reported him.”