He tells The Times Magazine, "I'm OK with that. My sister's not. I understand. She said, 'My parents, after 20 years, do not get their life back. He should not get his life back either.' My point of view is he's already been punished. You know, whether he's in prison or out of prison."
He added, "I've signed the petitions for her. Every time there would be a parole hearing, she would go with a lawyer and state the case that they should stay in jail and I would sign the letter, you know, as a son, that they should stay in jail, but when one of them was finally paroled, I said, 'Well, that's the end of that.'"
Duffy credits his Buddhist faith with helping him come to terms with the tragedy, telling Britain's OK! magazine, "I was stunned that my reaction included compassion for them (robbers). ... I am not a cold and uncaring person. So why am I not devastated emotionally by this? I realize that by now, in all probability, even if they had not been killed, they would be dead. All parents die."