Red John is Van Pelt and Tiger Tiger are just a bunch of followers who havent even met Red John in person yet. You must realize how much Van Pelt face is specifically shown to show how she feels. Van Pelt used to be a man. Finkle is Einhorn!! But seriously its nobody on the list. I use to think it was Styles but I think he is too pre-occupied to be Red John and as weird as this sounds, Red John is a weirdo and Styles just runs a bunch of weirdos. IF YOU WATCH THE PILOT EPISODE, YOU WILL KNOW VAN PELT IS RED JOHN. ALSO SHE HAD A ACCENT IN EP 1 AND SEEMED VERY MAD AT PATRICK CALLING HIM GODLESS IN A BRITISH LIKE ACCENT. WATCH IT AGAIN AND YOU SHALL SEE.