A sociopath known as Nathan Rohrschach begins to start a killing spree, killing people who's profiles are on Facebook and wrapping them up in plastic bags and writing child tales with their blood beside their corpses. Though he later uses invisible ink to write the child tales. The Child Tale Killer then finally forces John to create a Task Force to catch/kill the killer. It's hinted, that the Child Tale Killer works with another Death Note user who wants to kill off the Daniel McLaughlin (John's alias), L and Kira. Though it appears that Nathan works for him, he later betrays the other Kira who uses the death note to gather more money by manipulating the stocks.