I was told I could smile in my drivers license photo, but I could not show teeth. In my passport photo, I was told not to smile at all. Those are the only two photos I have where I am not smiling. Usually photos where I am not smiling get deleted, but I look better in my smiling ones and those are the ones I want people to see. I don't think CR has had a reason to smile once he was arrested, and before that, maybe the opposite was true for him. Maybe he didn't like the way he looked when he smiled. It's also possible that he was never truly happy, except for when he first met IM, when it was reported that that was the best day of his life.