eric david harris (april 9, 1981 – april 20, 1999) and dylan bennet klebold (september 11, 1981 – april 20, 1999) were an american mass murder duo. on april 20, 1999, the pair killed 13 and wounded 24 others at the high school they both attended in columbine, colorado. both harris and klebold also killed themselves in school's library. the event became known as the columbine high school massacre. the school shooting and attempted bombing has gained a lot of notoriety. harris and klebold have been described as cultural icons and had a large impact on popular culture. the duo have been referenced in many different types of media.