At least 18 children and one teacher were killed in a mass shooting at an elementary school in Uvalde, Texas, on Tuesday, according to reporting from multiple outlets. Texas Gov. Greg Abbott confirmed the news. The school teaches second through fourth grades. It was the second-to-last day of school before summer break was set for Thursday. At a press conference, Abbott said the suspect is an 18-year-old high school student who, police believe, worked alone.