The family of Virginia Tech gunman Seung-Hui Cho, who killed 32 people before shooting himself, issued a statement after the tragedy in April 2007. On behalf of the family, Sun-Kyung Cho, the sister of the shooter, said:
"We have always been a close, peaceful and loving family. My brother was quiet and reserved, yet struggled to fit in. We never could have envisioned that he was capable of so much violence. He has made the world weep. We are living a nightmare."
The Chos haven't spoken to the media since.
Most recently, the Lanzas in Newtown: "We reach out to the community of Newtown and express our heartfelt sorrow for this incomprehensible and profound loss of innocence."
Then, there's the survivor's guilt.
Mildred Muhammad's ex-husband and father of her three children, John Allen Muhammad, terrorized the Washington, D.C., area with random sniper attacks in 2002.
Muhammad was executed in November 2009 by lethal injection. His accomplice Lee Boyd Malvo, who was a teenager at the time of the shootings, is serving life in a Virginia prison.
"People blamed me for what John did," Mildred Muhammad told CNN.
Prior to the shootings, Mildred and John had a troubled relationship, troubled to the point that he threatened to take her life.
After the divorce, John Muhammad emptied out their bank accounts, kidnapped their children and disappeared.
When she finally got the children back and was awarded full custody in Washington state, she fled to Maryland. She did not believe he would follow her, let alone be a physical danger to anyone, other than herself.
Soon, there were reports of shootings throughout the Washington metropolitan area. Once John Muhammad was captured, there were whispers that he had done it to get his ex-wife's attention.
At first, Mildred Muhammad thought that if she'd only stayed with him, he would have killed her instead of killing 10 innocent strangers and wounding three. The guilt and disbelief were overwhelming.
It's difficult to grasp the reality that a family member could cause nationwide sorrow, said forensic psychiatrist Helen Morrison, who has profiled dozens of killers. Also hard is the realization that it's not the family's fault.
Morrison said it's imperative to get the individual to talk about their experience -- their feelings, their doubt, their anger, their distress -- and try to put that in a perspective that finally leads them to say, "It's not my fault."
For Moore, grief, an unexpected emotion, was a pivotal part of her coming to terms with her father's actions.
"I would check out 'Death of a Loved One' kind of books. That was the most relatable help I could get because I was going through this death of his identity," Moore said.
Emotional conflict arises with the realization that there are happy times and rituals worth preserving in every family.
In fact, Moore said she tucks her daughter into bed in the same loving way her father did for her.
It's important to remember the good times, though she'll never forget the bad.
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