Transcript for Sandy Hook Shooter's Dad: 'You Can't Get Any More Evil'
Now to a brand-new and hear heart-wrenching interview with the father of sandy hook shooting suspect Adam Lanza. John muller has more. Reporter: The interview is just chilling. The father of the boy responsible for one of the most horrible mass murders in American history saying his wishes his son had never been born. This morning, peter Lanza is speaking out for the first time since his son Adam killed 20 students and 6 teachers in the sandy hook elementary school. That same day, Adam killed his mother and then lowers later himself. In an interview with "The new Yorker" he says he's speaking out because I want people to be afraid of the fact that this could happen to them. It doesn't have to be understood to be real. Lanza describes his son as a cheerful child who loved sandy hook school. He used his savings to buy Christmas toys for needy children. He said as the years passed, his son began to struggle in middle school after a diagnosis with aspergers. A diagnosis that Adam refused to accept. L Lanza now says he wishes Adam had never been born. Saying you can't get any more evil. Later continuing with hindsight, I know Adam would have killed me in a heart beat if he had had a chance. I don't question that for a minute. Now, 15 months after the massacre, peter has started going through the thousands of letters of support he has received. He has met with two of the victims' families. A victim's family member told me they forgave Adam. I didn't know how to respond. He continue stantly thinks about what he should have done differently. Saying no outcome could have been worse. This article is online. It's chilling. Chilling, fascinating. You should read it. No easy way to shift to a
This transcript has been automatically generated and may not be 100% accurate.