It was 11:28 AM when the Ford pickup crashed into the ditch behind the Texas school. The driver then jumped out with an AR-15-style rifle.
Authorities say that Salvador Ramos, 18, was found in the Robb Elementary School hallways 12 minutes later. Soon, he was in a fourth-grade classroom. In a violent, yet unexplained attack of violence, he murdered 19 schoolchildren and two teachers.
Radio chatter from law enforcement said that Ramos was dead and the siege was over at 12:58 p.m.
The events that took place in the 90-minute period in a working class neighborhood near Uvalde have sparked public anger and increased scrutiny of law enforcement's response Tuesday's rampage.
Javier Cazares said that they claimed to have rushed in after Jacklyn Cazares' fourth-grade daughter was killed. He raced to school as the massacre unfolded. "We didn’t see that."
Authorities largely ignored questions regarding why they couldn't stop the shooter earlier. Victor Escalon was the Texas Department of Public Safety's regional director, and told reporters that he had "taken all of those questions into consideration" as well as would provide updates later.
Officials in Texas called for a media briefing to clarify the chronology of the attack. It provided some previously undiscovered information. It was overshadowed by troubling questions about the attack. This included the time it took for police to arrive on the scene to confront the gunman and the failure to lock the school door he had entered.
Investigators found that Ramos was not confronted outside of the school by a school district officer after two days of conflicting information.
Instead, they drew a timeline that would account for unexplained delays in law enforcement.
Escalon stated that Ramos crashed his truck and fired on two people who were coming out of a nearby funeral house. At 11:40, he entered the school "unobstructed" via an unlocked door.
The first officers arrived on the scene 12 minutes after the accident, but they did not enter the school to chase the shooter until 4 minutes later. Escalon stated that they were forced to retreat by the gunfire from Ramos inside and then took cover.
Travis Considine, spokesperson for Texas Department of Public Safety, stated that the crisis was over when a group of Border Patrol tactical officers arrived at the school about an hour later at 12:45 p.m. The gunman was still in fourth-grade classroom when they engaged in a shootout. He was gone just minutes before 1 p.m.
Escalon stated that officers called for support, negotiators, and tactical teams during the evacuation of students and teachers.
President of National School Safety and Security Services Consulting, Ken Trump, raised concerns about the timeline's length.