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Texas state troopers outside Robb Elementary School in Uvalde, Texas, U.S., on Tuesday, May 24, 2022. Fourteen students and one teacher were killed during a massacre in a Texas elementary school, the deadliest US school shooting in more than four years. Photographer: Eric Thayer/Bloomberg via Getty Images

Texas state troopers outside Robb Elementary School in Uvalde, Texas, U.S., on Tuesday, May 24, 2022. Fourteen students and one teacher were killed during a massacre in a Texas elementary school, the deadliest US school shooting in more than four years. Photographer: Eric Thayer/Bloomberg via Getty Images

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Sheriff crime scene tape is seen outside of Robb Elementary School as State troopers guard the area in Uvalde, Texas, on May 24, 2022. - An 18-year-old gunman killed 14 children and a teacher at an elementary school in Texas on Tuesday, according to the state's governor, in the nation's deadliest school shooting in years. (Photo by allison dinner / AFP) (Photo by ALLISON DINNER/AFP via Getty Images)

Sheriff crime scene tape is seen outside of Robb Elementary School as State troopers guard the area in Uvalde, Texas, on May 24, 2022. - An 18-year-old gunman killed 14 children and a teacher at an elementary school in Texas on Tuesday, according to the state's governor, in the nation's deadliest school shooting in years. (Photo by allison dinner / AFP) (Photo by ALLISON DINNER/AFP via Getty Images)

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People sit on the curb outside of Robb Elementary School as State troopers guard the area in Uvalde, Texas, on May 24, 2022. - An 18-year-old gunman killed 14 children and a teacher at an elementary school in Texas on Tuesday, according to the state's governor, in the nation's deadliest school shooting in years. (Photo by allison dinner / AFP) (Photo by ALLISON DINNER/AFP via Getty Images)

People sit on the curb outside of Robb Elementary School as State troopers guard the area in Uvalde, Texas, on May 24, 2022. - An 18-year-old gunman killed 14 children and a teacher at an elementary school in Texas on Tuesday, according to the state's governor, in the nation's deadliest school shooting in years. (Photo by allison dinner / AFP) (Photo by ALLISON DINNER/AFP via Getty Images)

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Texas state troopers outside Robb Elementary School in Uvalde, Texas, U.S., on Tuesday, May 24, 2022. Fourteen students and one teacher were killed during a massacre in a Texas elementary school, the deadliest US school shooting in more than four years. Photographer: Eric Thayer/Bloomberg via Getty Images

Texas state troopers outside Robb Elementary School in Uvalde, Texas, U.S., on Tuesday, May 24, 2022. Fourteen students and one teacher were killed during a massacre in a Texas elementary school, the deadliest US school shooting in more than four years. Photographer: Eric Thayer/Bloomberg via Getty Images

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People react outside Robb Elementary School in Uvalde, Texas, U.S., on Tuesday, May 24, 2022. Fourteen students and one teacher were killed during a massacre in a Texas elementary school, the deadliest US school shooting in more than four years. Photographer: Eric Thayer/Bloomberg via Getty Images

People react outside Robb Elementary School in Uvalde, Texas, U.S., on Tuesday, May 24, 2022. Fourteen students and one teacher were killed during a massacre in a Texas elementary school, the deadliest US school shooting in more than four years. Photographer: Eric Thayer/Bloomberg via Getty Images