"Silence Broken: A Mother's Reckoning," a Diane Sawyer One Hour Special Edition of "20/20," Airs Friday, February 12 at 10 p.m., ET

— -- ABC News announces “Silence Broken: A Mother’s Reckoning,” a Diane Sawyer special edition of “20/20,” will air on Friday, February 12 at 10 P.M., ET. After nearly 17 years, Sue Klebold, the mother of Columbine shooter Dylan Klebold, speaks on television for the first time ever about the tragedy, the victims, the relationship with her son and what it was like inside their home.

The ABC News primetime special examines the impact of and lessons from the tragic day that changed America. Sawyer reports on teenage mental health, potential clues that could help a parent learn if their child is in crisis, and if it is possible to prevent the next school shooting.

Klebold discusses her experience in her memoir, “A Mother’s Reckoning:  Living in the Aftermath of Tragedy,” which will be released on February 15, 2016, by Crown. Klebold is donating all of her profits from the book to research and to charitable foundations with a focus on mental health issues. More information about the book:  http://www.amothersreckoning.com

ABCNews.com will publish excerpts, additional reporting and links to mental health resources.

Sawyer’s special will air on all ABC News programs and platforms, including “Good Morning America,” “World News Tonight with David Muir,” “Nightline,” ABCNews.com, ABC News Radio and ABC NewsOne.

David Sloan is senior executive producer of “20/20.”