A family leave a reunification site in Nashville, Tenn., Monday, March 27, 2023 after several children were killed in a shooting at Covenant School in Nashville. OXFORD HIGH SCHOOL , November 2021, 4 deadA sophomore student is accused of killing four people and wounding others at his school in Oxford, Michigan, near Detroit. SANTA FE HIGH SCHOOL , May 2018, 10 deadA shooter opened fire at a Houston-area high school, killing 10 people, most of them students, authorities said. MARYSVILLE-PILCHUCK HIGH SCHOOL , October 2014, 4 deadADVERTISEMENTA 15-year-old used text messages to draw several cousins and friends to his cafeteria table at Marysville-Pilchuck High School in Washington state. COLUMBINE HIGH SCHOOL , April 1999, 13 deadTwo students killed 12 of their peers and one teacher at the school in Littleton, Colorado, and injured many others before killing themselves.