Richard Castle: Man, these people need to get a life. Most of these guys, it seems their only companionship is the space alien that talks to them through their microwave.
Kate Beckett: Yeah, well, there's a lot of lonely and confused people out there, but so far none of the letters match the handwriting in our the suspect's notebook.
Richard Castle: Considering what he's capable of, you would think Bracken would have more... formidable enemies.
Kate Beckett: Oh, obviously you never saw the letter that I sent him.
Richard Castle: No, I did actually. I liked the way you uh, dotted the 'I' on "kill" with a little heart. It was a nice touch.
Kate Beckett: Well, I was trying to give it a personal feel.