It was revealed Wednesday that the juvenile who massacred 19 children and two teachers in a Texas school stayed more than 40 minutes inside while witnesses anxiously encouraged authorities to go into the building.

Salvador Ramos locked himself inside the classroom before opening fire on the pupils and instructors that were there. When a staff member provided them a key, Border Patrol officials broke through the door around 40 minutes to an hour later.

A father of one of the deceased children is now blaming cops on the scene for failing to intervene sooner to stop the gunman. When he heard about the incident, Cazares rushed to Robb Elementary School, arriving while police were still gathering outside.

While watching the cops outside his daughter’s school with bated breath, he proposed breaking inside the school with other civilian spectators.

“Let’s just rush in since the cops aren’t doing anything as they should,” he encouraged other observers. “There could have been more done. There were at least 40 lawmen armed to the teeth but didn’t do a dang thing [until] it was far too late,” said Javier Cazares, the father of 10-year-old victim Jackie Cazares.

According to a witness who lives across the street from the primary school, bystanders implored cops outside the school to do something as gunfire rang out inside.

“Enter there! “Go in there!” adjacent ladies yelled at the cops who refused to enter, according to Juan Carranza, 24.

Local and state police, as well as 80 Border Patrol agents, rushed to the site. According to a Customs and Border Protection official, four of the 80 Border Patrol agents entered the school building and murdered Ramos.

Carranza said the cops should have stormed the school sooner. There were more of them, but only one of him,” he explained.

In a CNN interview on Wednesday, US Border Patrol Chief Raul Ortiz claimed that when the Border Patrol agents arrived, “they didn’t hesitate.”