"So have I," he says. "That former partner I mentioned was..."

He's quiet for a moment. Kara had been broken for a long time before he met her and nothing he had done would have changed that, but there are still days he feels guilty for being unable to save her in the long run.

"She told me once I had to be the murderer or the boy scout," he says. "I couldn't be both or anything in between."