NEW YORK (ABC NEWS)--Ten years after Dylan Klebold staged the deadly shooting at Colorado's Columbine High School, his mother, Susan Klebold, speaks openly for the first time about the massacre.
In an essay in the November issue of O Magazine Klebold describes the shock and horror she experienced on the day of the shooting, as well as her personal journey to comprehend her son's actions and move forward.
O Editor Gayle King spoke about the interview and Klebold's recollections from the day of the shooting.
"She said she replays that scene a million times in her head because she hears his footsteps coming down the stairs and she can tell that he's rushing," King recounts. "On a normal day she would greet him in the morning, 'how are you, I love you.' They'd have a conversation. But on that particular day he ran down the steps. She says 'Dyl?' and the door slammed and he was gone."
On April 20th, 1999, 17-year-old Dylan Klebold and fellow student Eric Harris, who was 18, opened fire inside their high school, killing 13 and injuring more than 20 before turning their weapons on themselves.