Law enforcement personnel stand outside Robb Elementary School following a shooting, Tuesday, May 24, 2022, in Uvalde, Texas. (AP Photo/Dario Lopez-Mills) An 18-year-old gunman opened fire Tuesday at a Texas elementary school, killing 14 children, one teacher and injuring others, Gov. Greg Abbott said, and the gunman was dead. It was the deadliest shooting at a U.S. grade school since the shocking attack at Sandy Hook Elementary in Newtown, Connecticut,