New details of the police response to the Uvalde massacre are revealed. This is the latest timeline minute by minute

New evidence points to insufficient reaction to shooting in Uvalde 2:26

(CNN) --

Four weeks after a gunman entered Robb Elementary School in Uvalde, Texas, and killed 19 young students and two teachers, one of the state's top law enforcement officials offered a breakdown. minute by minute of the police response and called it an "abject failure".

On Tuesday, Texas Department of Public Safety (DPS) Director Col. Steven McCraw shared a new timeline from the morning of the Uvalde massacre, which offered new details from an earlier breakdown he had shared with reporters. .

"Three minutes after the subject entered the (school), there were a sufficient number of armed officers in bulletproof vests to isolate, distract and neutralize the subject," McCraw told the Texas Senate Task Force to Protect All Texans.

The only thing that stopped those officers, McCraw said, was the commander on the scene who "decided to put the lives of the officers before the lives of the children."

That commander was Uvalde School District Police Chief Pedro "Pete" Arredondo.

"One hour, 14 minutes and eight seconds. That was how long the children and the teachers waited ... to be rescued," McCraw said.

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This is the latest timeline from the DPS director, detailing how the tragedy unfolded, made with the help of funeral home footage, school surveillance, and 911 phone recordings and law enforcement body cameras. of the order.

(CNN has rounded up the seconds on the timeline.)

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They reveal new details of the police action in the Uvalde massacre 2:32

The moments before the massacre at the Uvalde primary school

At approximately

, the suspect crashes his grandmother's truck into a ditch in front of the school and a funeral home, McCraw said.

The 18-year-old attacker lived with his grandparents, whose home was less than 5 kilometers from Robb Elementary School, according to the principal.

(Before that accident, the gunman was at home and was texting a teenager in Germany, CNN previously reported. In those messages, he was complaining about his grandmother and at

he texted: "I just shot my grandmother in the head. Moments later, he said he was going to “shoot up” an elementary school.)

At approximately

, two men from the funeral home come out to see the crash.

Meanwhile, seconds later, a teacher inside the school calls 911 and reports a gunman, McCraw said.

At approximately

, after shooting at the funeral home men, the suspect begins shooting at the school from outside, McCraw said.

The shooter fired 27 times while he was outside, shooting into classrooms, according to McCraw.

Teacher pretended to be dead and survived shooting in Uvalde 0:53

When the gunman got to the door he entered, at the school's west entrance, it was open, McCraw said.

(The door had been opened by a teacher and then closed by the same teacher before the gunman entered, McCraw said. That teacher was the one who called 911 to report a gunman, McCraw said.)

A school resource agent who was not on campus but heard the 911 call drove to the area at that time and ran toward the back of the school toward a person he thought was the suspect but was a teacher, McCraw said. last month.

"In doing so, (the school resource officer) walked past the suspect, who was crouched behind a vehicle, where he began firing at the school," McCraw had said at the time.

At Tuesday's hearing, McCraw said the officer reported addressing the subject, which also caused confusion early in the police response.

• As investigation into Uvalde massacre begins, new details emerge about law enforcement response during shooting

The suspect entered the school

At

, the suspect entered the school, according to a timeline that accompanied McCraw's testimony.

The gunman starts walking and turns into a hallway that leads to adjoining rooms 111 and 112. About 30 seconds after entering the building, he begins shooting in one of the two rooms, according to the timeline.

He opens the door to one of the rooms and goes inside, McCraw said.

According to the timeline, the gunman walked out and re-entered one of the classrooms within moments.

Just before

, three Uvalde Police Department officers with two rifles enter the same door as the shooter, according to the timeline.

At

, an officer from the Uvalde Consolidated Independent School District, as well as Arredondo, the district chief, and two officers from the Uvalde Police Department enter another school door.

Three seconds later, three additional officers from the Uvalde Police Department and a district officer enter through the same door as the attacker, according to the timeline.

At

, the suspect, from inside the classroom, shoots and wounds officers approaching the classroom doors.

Two of those officers received grazing wounds, McCraw said last month.

More than 100 rounds were fired between the time the gunman first attacked the classroom and shot at officers, according to the timeline.

At approximately

, an unknown agent says the subject was "contained in this office," according to the timeline, which cites body cameras.

(This video has not been released, but McCraw testified Tuesday that his agency plans to do so eventually.)

That was not the correct report for an active gunman, McCraw said.

At approximately

, Arredondo, who did not have his police radio with him, called the Uvalde Police Department landline, according to the timeline.

(Earlier this month, Arredondo told The Texas Tribune that he did not consider himself the incident commander and he left his police radio and campus radio outside the school because he thought carrying them would slow him down.)

McCraw shared a transcript of that phone conversation, during which Arredondo reportedly told the dispatcher that the shooter had "shot a bunch of times," called for them to surround the building and for more forces, saying, "We don't have enough power." of fire".

Moments later, the suspect fired a round, according to the timeline.

The agent whose wife was murdered arrives on the scene

At approximately

, a Uvalde police officer says, "We think he's barricaded in one of the offices," but adds, "There's still gunfire," the timeline says, citing body camera footage.

A dispatcher asks if the door is locked.

A police officer replies, "I'm not sure, but we've got a thug to break it up."

Shortly before

, four lifeguards enter from a hallway.

"Officers continue to flood the particular area," McCraw said at Tuesday's hearing.

Several moments later, a DPS police officer and two Uvalde police officers enter the hallway.

At

, the suspect fires another round.

Shortly after that, a Uvalde police officer says, "Have some officers that are available to get everyone back," according to the timeline.

At approximately

, School District Police Officer Ruben Ruiz, whose wife, teacher Eva Mireles, was killed in the attack, enters the same building door as the attacker and is heard on camera footage. of the body telling other officers, "She says she was shot," the timeline says.

"He got a call from his wife. His wife was in room 112," McCraw said Tuesday.

• A dying Uvalde teacher was on the phone with her husband, a school police officer whose boss decided not to enter her classroom, according to a report.

Local officials previously said Mireles spent some of her last breaths on the phone with her husband, telling him she was dying.

Shortly before

, an unknown officer says, "You have to get out of the hallway," according to body camera footage.

A Uvalde police officer says, "The boss is there, the boss is in charge right now, he's waiting."

Moments later, seven Border Patrol agents enter the same building door as the attacker.

About a minute after that, the first ballistic shield enters through that door, according to the timeline.

A Uvalde police officer is heard saying the units were "showing up" and asks, "Can you help with crowd control?"

"So officers after

are being diverted to crowd control activities," McCraw says.

"Are there still children there?"

At approximately

an unknown agent tells a DPS special agent that all they need is a perimeter, according to the timeline.

Someone comments if there are still children inside.

The DPS special agent replies, "If there is, they just have to go in," according to the timeline.

Shortly after

, a DPS special agent enters the school building and is directed to the focus, according to the schedule.

He asks an agent, "Are there still kids there?"

The agent replies, "Unknown at this time."

A Uvalde police officer says the gunman is in classroom 111 or 112, adding, "The chief is contacting him. No one has contacted him."

Shortly after

, an unknown officer asks if authorities don't know if there are children inside.

The DPS special agent says that if there are, "We have to get in there."

He repeats it a moment later.

The unknown agent replies, "Whoever is in charge will determine."

A recording from a police department channel reads, "It's critical that everyone let the Police Department handle this."

An unknown officer asks where the attacker is, and another responds, "The school chief of police is there with him."

Shortly after

, the DPS special agent says the situation sounds like "a hostage rescue situation," adding that "they should probably go in," based on the timeline.

The agent then indicates that he wants to clear more rooms in the school, according to the schedule.

An unknown agent asks if a supervisor should approve that.

The special agent replies, "He's not my supervisor," according to the timeline.

Shortly after

, a girl from inside one of the adjoining classrooms calls 911, identifies herself and whispers the classroom she is in, McCraw said previously.

The call lasted one minute and 23 seconds.

She calls back several minutes later and says several people are dead.

"She's in room 112. And she was actually the only girl in room 112 who was unharmed. Eight kids died, two teachers died in that room," McCraw said Tuesday.

Meanwhile, the second ballistic shield enters the building.

Less than 30 seconds later, a third enters, according to the timeline.

"And yet there is no action," McCraw says during the hearing.

At approximately

, a Uvalde police officer is heard on body camera telling someone to "get the master key to the rooms."

About a minute later, members of the Border Patrol's tactical unit, BORTAC, begin to arrive at the school.

Pete Arredondo requests a key, then a tool to break the door

At

, Arredondo now requests a master key.

About three minutes later, he instructs the agents to have a sniper on the roof.

At

, the girl calls 911 again, McCraw said previously.

Shortly after

a member of BORTAC arrives inside the building.

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He's dead, Uvalde authorities say about school attacker 1:00

Around

, the girl calls 911 again, telling dispatchers there are eight to nine students alive, McCraw said.

Around the same time, Arredondo is heard via body camera footage saying he needs a key.

About a minute after that, he can be heard telling people to wait, adding, "Nobody's coming in," according to body camera footage.

At

, another caller calls 911 from one of the adjoining classrooms and hangs up when prompted by another student, McCraw said last month.

Meanwhile, a fourth ballistic shield enters the building.

The suspect then fires four rounds.

The timeline then cites body camera footage that offers a glimpse of Arredondo's actions in the minutes leading up to the shooting:

Shortly after

, he is heard asking for a breaking tool.

After

, Arredondo says, "We lost two kids. These walls are thin. If he starts shooting, we're going to lose more kids. I hate to say we've left them out right now."

He then attempts to communicate with the suspect in English and Spanish.

"All communication was always one way. The suspect never communicated, so it was no communication," McCraw said Tuesday.

At approximately

, an officer says a teacher is shot inside, and another officer replies, "I know."

"People are going to ask why it took so long"

At approximately 12:27 p.m., Arredondo is heard saying, "People will ask why it took so long. We're trying to preserve the rest of life," according to the timeline.

Seconds later, he asks if there's a team ready, and about a minute later he's heard saying he'd get more keys to try on the door.

Seconds later, she says that the master keys don't work.

McCraw said Tuesday that there was more than one master key to the school's classrooms, which would explain why the one Arredondo had didn't work.

At 12:30 p.m., Arredondo says authorities cleared out everyone in the school except for adjoining classrooms, according to the timeline.

He adds that they are ready to go in, but the door to the room is closed.

More than three minutes later, he adds, "I say let's go through those windows and shoot his head through the windows."

After 12:35 pm, the Hooligan rape tool enters the school.

Meanwhile, Arredondo tries to talk to the suspect again soon after, in both English and Spanish.

At 12:36 p.m., the student who initially called 911 calls back, is told to be very quiet, and tells dispatchers, "He shot the door," McCraw said earlier.

He would later ask dispatchers several times to send in the police.

At approximately 12:41 pm, Arredondo is heard saying that authorities believe there are injuries in the room, according to the timeline.

He adds shortly after that the rest of the building has been evacuated, so "we wouldn't have more than what's already there."

At approximately 12:42 pm, the chronology indicates that the district chief is heard again saying that the authorities are having trouble getting into the room because the door is locked.

"He's got an AR-15 and he's shooting everywhere like crazy," he says, adding that the attacker stopped.

About a minute later, Arredondo says that they need more keys.

Three minutes later, he is heard telling the others, "If you're ready to do it, do it, but you've got to shoot out that window," according to the timeline.

Shortly before 12:48 pm, a sledgehammer enters the building.

At 12:50:03 pm, authorities enter the room and shoot and kill the attacker.

Seven officers entered, four entered first, followed by three more, McCraw said.

Five officers shot the subject, he added.

-- CNN's Jarrod Wardwell and Amanda Watts contributed to this report.

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