FILE - Fran Allison, right, comforts her daughter, Brooke, after they were reunited following a shooting at Columbine High School in Littleton, Colo., April 20, 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/Ed Andrieski, File)