FILE - Pallbearers carry the casket of Columbine High School student, Matthew Kechter, out of St. Frances Cabrini Catholic Church in Littleton, Colo., April 27, 1999. Twenty-five years later, The Associated Press is republishing this story about the attack, the product of reporting from more than a dozen AP journalists who conducted interviews in the hours after it happened. The article first appeared on April 22, 1999. ( AP Photo/Eric Gay, File)