(FOX NEWS)- Sue Klebold, the mother of one of the Columbine killers who murdered 13 people in a horrific school shooting nearly 17 years ago, will broke her silence in a special edition of "20/20" Friday.
A day before the interview is set to air, Anne Marie Hochhalter, who was paralyzed in the 1999 massacre, wrote a powerful Facebook post addressed to Klebold.
"I have no ill-will towards you. Just as I wouldn't want to be judged by the sins of my family members, I hold you in that same regard," Hochhalter wrote. "It's been a rough road for me, with many medical issues because of my spinal cord injury and intense nerve pain, but I choose not to be bitter towards you."
"A good friend once told me, 'Bitterness is like swallowing a poison pill and expecting the other person to die.' It only harms yourself. I have forgiven you and only wish you the best."