Sue Klebold sits down for an exclusive interview with Diane Sawyer to air in a special edition of ABC News "20/20" on Friday, Feb. 12 at 10 p.m. ET.

Three nights before the Columbine massacre, Dylan Klebold went to the senior prom. He pulled back his long hair, wore a tux and a bow tie. His mother, Sue Klebold, got out of bed when he came in ...

Sue Klebold, Dylan Klebold's mother, believed that like many parents, she was sure she would have known if something were wrong with her son -- but all that changed after the tragedy.

Sue Klebold said she will donate all proceeds from “A Mother’s Reckoning” to charities focused on mental health issues. “Stop pushing me, mom,” he snapped, according to the book.

Sue Klebold says she wishes she'd asked her son Dylan "the kinds of questions that would've encouraged him to open up." Published 17 years after the massacre, her new memoir is A Mother's Reckoning.

A MOTHER’S RECKONING: Living in the Aftermath of Tragedy, by Sue Klebold. Crown. 305 pp. $28. Five days after the April 1999 massacre at Columbine High School, and just hours after they cremated ...

A MOTHER’S RECKONING: Living in the Aftermath of Tragedy By Sue Klebold Crown Publishers. 305 pp. $28. Five days after the April 1999 massacre at Columbine High School, and just hours after they ...

Sue Klebold, the mother of Columbine shooter Dylan Klebold, had her first television interview since the Columbine tragedy 17 years ago. 1 weather alerts 1 closings/delays. Watch Now ...

Sue Klebold's son Dylan was one of the two shooters at Columbine High School. Nearly 20 years later, she talks about her struggle to understand his actions, and to find forgiveness.

With “A Mother’s Reckoning,” Sue Klebold is taking those sheets down. Reading this book as a critic is hard; reading it as a parent is devastating.

In her essay, Susan Klebold wrote about her own struggle to reconcile the son she loved with the horror he caused. "For the rest of my life, I will be haunted by the horror and anguish Dylan ...

In the days after Dylan Klebold along with Eric Harris shot and killed 12 students and one teacher and then himself at Columbine High School on April 20, 1999, his mother, Sue Klebold, remembered ...