The gunman who killed 19 students and two teachers at Robb Elementary School in Uvalde, Texas, reportedly entered the facility through an unlocked entrance without being accosted, according to a new account of the circumstances preceding the atrocity provided authorities.

Police reported that the gunman had been locked in a classroom at Robb Elementary School for one hour before a tactical squad invaded the room and fatally shot him.

Outside, parents pleaded with authorities to storm the premises.

As a security precaution, the school district of Uvalde locks classroom doors. The most recent information provided by authorities contradicted specific earlier claims. It prompted new doubts about the chronology of events, law enforcement's response quickness, and the school's safety measures.

The shooter, 18-year-old Salvador Ramos, crashed his pickup truck outside the school at 11:28 a.m. (local time) on Tuesday, fired six rounds at two onlookers across the street, and then entered the school at 11:40 a.m. to the Texas Department of Public Safety spokesperson Victor Escalon.

Mr. Escalon stated that two responding cops entered the school four minutes later but took shelter after the attacker fired multiple bullets at them.

In the bloodiest school shooting in the United States in over a decade, the gunman barricaded himself in a fourth-grade classroom and opened fire on predominantly 9- and 10-year-olds.

When asked if officers should have intervened sooner, Mr. Escalon responded, "That's a tough question," adding that officials would provide additional information as the investigation continued.

After the initial exchange of gunfire, he described a chaotic situation with officers asking for backup and evacuating kids and personnel.

The new, more thorough description was released hours after images of terrified parents outside the school pleading with authorities to rush the building during the attack. Some fathers needed to be restrained.

Angel Ledezma posted a video to Facebook in which parents are seen pushing over yellow police tape and demanding police officers enter the premises.

Mr. Ledezma stated in the video, "It's already been an hour, and they still can't get all the kids out,"

He failed to reply immediately to a request for comment.

Another YouTube video depicted police officers restraining at least one adult.

One mother is audible, saying, "Why allow children to perish? There is gunfire inside."

One cop is overheard informing the audience, "We got guys going in to get kids," They are productive.

Mr. Escalon told reporters that there was no armed police officer at the school.

According to the witness, the gunman fired the most shots throughout the siege at the beginning of the assault.

The atrocity, the most recent in a line of mass shootings spanning years, has revived a national discussion over the nation's gun regulations.

Despite Republican opposition, President Joe Biden and his fellow Democrats have vowed to push for more severe limitations.

Police have yet to determine the shooter's motive.

Mr. Escalon stated that investigators are still working to uncover a motive.

The gunman, a high school dropout, had no criminal record or documented history of mental illness.

On Wednesday, Greg Abbott, the governor of Texas, stated that the shooter had sent an internet post minutes before his attack, saying that he was preparing to "shoot up an elementary school."

Before departing in a pickup truck, he opened fire at home, shooting his grandma in the face.

His grandma, who is in critical condition in the hospital, managed to call the police.

A fourth-grade student in the classroom informed a San Antonio television station affiliated with CBS that the gunman began firing before entering and then entered the classroom.

The child, who the station did not identify, stated that he hid under a table until cops entered the classroom and opened fire.

Also injured were at least 17 persons, including children.

The victims' loved ones rushed to social media to express their grief over the loss of school-aged youngsters who never returned home.

Kimberly Mata-Rubio said on Facebook in memory of her daughter, fourth-grade honor student Alexandria Aniyah Rubio, "We told her we loved her and would pick her up after school,"

We had no notion this was a farewell.

According to US Census data, Uvalde is home to over 16,000 people, of whom roughly 80% are Hispanic or Latino. Numerous members of the close-knit community knew some of the victims or their families personally.

The widower husband of the teacher dies of a heart attack.

The New York Times reports that the spouse of a fourth-grade teacher slain in this week's horrific shooting at an elementary school in Texas died of a heart attack.

Thursday, Joe Garcia fell and died while preparing for the funeral of his high school sweetheart and wife of 24 years, Irma Garcia, the newspaper stated.

According to the story, the two leave four children behind.

Irma Garcia, 46, was one of two teachers killed and 19 students at Robb Elementary School in Uvalde, Texas.

Officials informed relatives that Irma Garcia and Eva Mireles perished while attempting to safeguard their students.

NBC News also covered Joe Garcia's passing, citing his son Christian Garcia and nephew John Martinez.

Mr. Martinez wrote on his Twitter account, using the Spanish word for "Extremely heartbreaking and come with deep sorrow to say that my Tia [aunt] Irma's husband Joe Garcia has passed away due to grief, I (sic) truly am at a loss for words for how we are all feeling," and requesting prayers for the family, that it was "aunt."

"God have mercy on us, this isn't easy."

Mr. Martinez told NBC that Joe Garcia died after returning home from delivering flowers to Irma Garcia's memorial service.