Transcript for Columbine Shooter's Mother Sue Klebold Speaks Out in Diane Sawyer Exclusive: First Look
For all the parents who have said oh. I would have known him for what is just known fairly violent inside Columbine high today before Columbine happened I would than one of those parents. Could do if prevented what happened to column mind. The goal. Friday February 12 essential viewing for every American family silence broken her mother is reckoning Diane Sawyer special on EB CE.
This transcript has been automatically generated and may not be 100% accurate.