I'm watching this jig saw puzzle being put together. I look at the table the pieces are being assembled on. I see all the grease finger and palm prints. I wonder about all the individual pieces and its histories. I think about all the playing cards in the casinos. What goes around, comes around. Imagine all the mixtures of DNA or prints on puzzle pieces or playing cards. If one of them were found at a homicide, there would be a few suspects to filter through.