[There's a pause, then a slow, deliberate semi-smile spreads on his face. It's not a nice expression.]

That kid? He wasn't a person any more. He would've killed me if I'd given him the opportunity. Bad luck for him, but his parents were weak. They did nothing. They didn't help themselves and they didn't help him. [He hesitates, voice less flat when he starts talking again.] Just about the only thing they did do was kill their daughter and beat their other son, the ones who weren't infected. They wouldn't help themselves, so I had to do it for them.