Dean Winchester: Things aren't just black and white out here. All you have is a case in front of you, like Hayden. A few months ago, there was this kid, this psychic. She was killing people, but she didn't mean to hurt anyone. She was being abused. So we gave her a second chance because it was the right thing to do.

Mick Davies: Well... that's your luxury. We have a code.

(Flashback showing Mr. Ketch killing the psychic girl)