[about Witwer's father]

What does he think about your chosen line of work?

I don't know. He was shot and killed when I was 15 on the steps of our church in Dublin. I know what it's like to lose someone close, John. 'Course, nothing is like the loss of a child. I don't have any children of my own, so I can only imagine what that must've been like. To lose your son – in such a public place like that. At least now you and I have the chance to make sure that kind of thing doesn't happen to anyone –

Why don't you cut the cute act, Danny boy, and tell me exactly what it is you're looking for?

Flaws.

There hasn't been a murder in 6 years. There's nothing wrong with the system, it is--

Perfect. I agree. But if there's a flaw, it's human. It always is.