They tied the Blake Society (tyger,tyger) to Red John using a tattoo of 3 dots on the left shoulder. ?Spoiler Alert? Wow, Red John is a bad ass - a bartender spotted his photo on tv, and Red John casually smashed a bottle against his head and stabbed him with the broken bottle. I am still a little confused by the Blake/Tyger tie in; I know that it was balanced by the The Lamb and is in his book "Songs of Innocence and Experience". It will take some thought.