People react outside the Ssgt Willie de Leon Civic Center, where students had been transported from Robb Elementary School after a shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

A view of an ambulance following a suspected shooting, in Uvalde, Texas, U.S., May 24, 2022, in this still image obtained from a social media video. Video obtained by Reuters/via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. MANDATORY CREDIT. NO RESALES. NO ARCHIVES.

Children get on a school bus as law enforcement personnel guard the scene of a suspected shooting near Robb Elementary School in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello TPX IMAGES OF THE DAY

A child gets on a school bus as law enforcement personnel guard the scene of a shooting at Robb Elementary School in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

People react outside the Ssgt Willie de Leon Civic Center, where students had been transported from Robb Elementary School after a shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

A police vehicle is seen parked near of a truck believed to belong to the suspect of a shooting at Robb Elementary School after a shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

A child gets on a school bus as law enforcement personnel guard the scene of a shooting at Robb Elementary School in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

People react outside the Ssgt Willie de Leon Civic Center, where students had been transported from Robb Elementary School after a shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

Law enforcement officers guard the scene of a shooting at Robb Elementary School in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

A child gets on a school bus as law enforcement personnel guard the scene of a shooting at Robb Elementary School in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

People react outside the Ssgt Willie de Leon Civic Center, where students had been transported from Robb Elementary School after a shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

A child looks on through a glass window from inside the Ssgt Willie de Leon Civic Center, where students had been transported from Robb Elementary School after a shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

A woman reacts outside the Ssgt Willie de Leon Civic Center, where students had been transported from Robb Elementary School after a shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

Law enforcement officers guard the scene of a shooting at Robb Elementary School in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

A child gets on a school bus as law enforcement personnel guard the scene of a suspected shooting near Robb Elementary School in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

Law enforcement personnel guard the scene of a suspected shooting near Robb Elementary School in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

Law enforcement officers walk near the scene of a shooting at Robb Elementary School in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

A woman reacts while talking on the phone outside the Ssgt Willie de Leon Civic Center, where students had been transported from Robb Elementary School to be picked up after a suspected shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

Law enforcement personnel run away from the scene of a suspected shooting near Robb Elementary School in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

Women react outside the Ssgt Willie de Leon Civic Center, where students had been transported from Robb Elementary School after a suspected shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

A child looks through a glass window from inside the Ssgt Willie de Leon Civic Center, where students had been transported from Robb Elementary School after a suspected shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

People react outside the Ssgt Willie de Leon Civic Center, where students had been transported from Robb Elementary School after a shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

A woman reacts as Gustavo Garcia-Siller, Archbishop of the Archdiocese of San Antonio, comforts people outside the Ssgt Willie de Leon Civic Center, where students had been transported from Robb Elementary School after a shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

Gustavo Garcia-Siller, Archbishop of the Archdiocese of San Antonio, comforts people as they react outside the Ssgt Willie de Leon Civic Center, where students had been transported from Robb Elementary School after a shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

Children get on a school bus as law enforcement personnel guard the scene of a suspected shooting near Robb Elementary School in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

A school employee talks through the window of a school bus to one of the parents near the scene of a suspected shooting near Robb Elementary School in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

Gustavo Garcia-Siller, Archbishop of the Archdiocese of San Antonio, comforts people as they react outside the Ssgt Willie de Leon Civic Center, where students had been transported from Robb Elementary School after a shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

A board with the list of classes/teachers is displayed outside the Ssgt Willie de Leon Civic Center, where students had been transported from Robb Elementary School to be picked up after a suspected shooting, in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

Law enforcement personnel guard the scene of a suspected shooting near Robb Elementary School in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello

Law enforcement personnel run away from the scene of a suspected shooting near Robb Elementary School in Uvalde, Texas, U.S. May 24, 2022. REUTERS/Marco Bello