Tilting her head back to laugh, Kate nudged an arm against Castle's ribs. "Are you rewriting Clue or something?" she asked, using her free hand to reach out and gently tug at his ear. "Mrs. Peacock in the library with the wrench?"
But even as she was teasing him, Kate was trying to think about the oddest cases she had come across in her career. Serial killers were difficult because of the profiling and the challenge of stopping before they struck again, but it had always been the random attacks that had gotten to her and been the hardest to work. Though, really, a good deal of that was the perception of her mother's murder having been random gang violence for so many years - and it had been Castle's tenacity that had blown that theory apart for good.
"It should just be someone unassuming. Not the person that everyone loves and has no enemies, or the person everyone can't stand because of whatever personality trait. Just a person that's at the party and wants to have a good time. Nothing more than that."