An internal CBP report was released on Thursday.

City of Uvalde release records from 2022 Robb Elementary shooting.

A former Uvalde, Texas, school district police officer pleaded not guilty to the 29 counts against him as families of the Robb Elementary School victims looked on.

Former Uvalde School District Police Chief Pete Arredondo was charged with 10 counts of abandoning and endangering a child.

After the tragic event at Robb Elementary School in Uvalde, Texas, where a gunman killed 19 students and two teachers, a local librarian is giving back to the community.

Families of the Uvalde victims have filed a lawsuit against Daniel Defense, and Activision over what they claim was their role in promoting the gun used in the shooting.

Two years after the Robb Elementary School massacre, the victims' families are still pushing for answers. Here’s where the investigation stands.

The ABC News Live documentary "Print It Black" examines the Uvalde, Texas newspaper's coverage of the Robb Elementary School shooting.

Families of some of the Uvalde, Texas, mass shooting victims have reached a settlement with the city and county of Uvalde.

Cody Smith, the mayor of Uvalde, Texas has resigned.

The police chief of Uvalde, Texas, Daniel Rodriguez, announced his resignation on Tuesday.

"I was really shocked to be invited," Jazmin Cazares told ABC News. "I feel like it's another opportunity to spotlight what gun violence does to small communities."

A grand jury is now empaneled to examine whether any law enforcement officers should be criminally charged in the Robb Elementary shooting, ABC News has confirmed.

The Department of Justice on Thursday released its report on the law enforcement response to the May 2022 shooting at Robb Elementary School in Uvalde, Texas.

The "Critical Incident Review" is not a criminal investigation into the May 2022 shooting in which 19 children and two teachers were killed, the DOJ said.

Roland Ramirez, of the NFL’s Houston Texans, was across the state when he learned that 19 children and two teachers were killed in his hometown of Uvalde, Texas.

The low-ranked Uvalde High School football program’s transformative year helped uplift the grief-stricken community.

Mother of Uvalde victim loses mayoral election.

Uvalde was originally named after the oak trees that fill its landscape. Each branch of the school's tree will represent a victim.

A look at the mass shootings with the highest death tolls in recent U.S. history.

Organizers said a lack of volunteers was the reason the festival was being disbanded.

Uvalde Mayor Don McLaughlin on Wednesday accused the county’s district attorney of a cover-up in connection with the ongoing investigation into the 2022 school shooting.

A cousin of the Uvalde school shooter was arrested Monday on allegations he threatened to commit a school shooting.

Mata-Rubio’s daughter Alexandria was among the 19 fourth-graders and two teachers who were killed on May 24, 2022, after a gunman opened fire in Robb Elementary School.

In honor of what would've been Joaquin's 23rd birthday, the Olivers are visiting cities across the country that have been impacted by gun violence.

The 9-1-1 Youth Hero Award is being given to Miah Cerrillo, Khloie Torres and Amerie Jo Garza.

Plans are moving forward to demolish the site of the school shooting last year in Uvalde, Texas, officials said Monday.

A year after the Uvalde shooting, Robb Elementary is still using the same emergency alert platform that some say failed to sufficiently warn staffers of the attack.

Despite challenges, the decision to return to teaching was not difficult for Mercedes Salas.

Nineteen children and two teachers were killed at Robb Elementary School. Parents of victims visited the site on Thursday for the first time since the shooting.

A mass shooting brought immense grief to Uvalde, Texas, but the community united for Uvalde High School's first football game after the tragedy.

Miah Cerrillo survived the shooting at Robb Elementary School that killed two of her teachers and several classmates.

"20/20" shares an unprecedented and complete account of what happened in during the Robb Elementary school shooting.

Ana Rodriguez's whose daughter, Maite, was killed in the May 2022 elementary school mass shooting in Uvalde, Texas.

Robb Elementary School fourth-grade teacher Arnulfo Reyes was watching a movie with 11 of his students when he heard shots ring out.

When Jazmin Cazares graduates high school this spring, she won't have her little sister, Jackie, there to cheer her on.

Kim Rubio's 10-year-old daughter, Lexi, was among the 19 children and two teachers killed in the Uvalde, Texas, elementary school mass shooting.

Jerry Mata's bubbly 10-year-old daughter, Tess, was among the 19 children killed in the Robb Elementary School massacre last year.

Caitlyne Gonzales, 10, survived the massacre at her Uvalde, Texas, elementary school. Twenty-one people, including her best friend, Jackie, were killed.

“20/20” documented families of victims and survivors present at Robb Elementary during the May 2022 incident.