So let's change the game up a bit since we've seen every theory there is by now.Let's play WHO WOULD YOU HAVE MADE RED JOHN?
Looking at all of the characters in the show that have wandered through, I'd say that Mashburn would have been the one who made the most sense to turn into Red John.He's good looking (enough to get Lisbon into bed), smart, independent, the right age, and matches the description of Rosalind to boot.So write up your own "I would have picked" theory.