My wife has been a viewer of this show since day one and got me to watch it a bit the last couple of seasons. The who is red john story line kind of sucked me in. I don't know all of the details but she filled me in a bit with how the red john stuff started etc. As kind of an outsider viewing only fairly recent episodes, I strongly believe red john is going to be either Kirkland or Partridge ( someone who is supposedly dead) I don't have an angle or facts or theories. Just an opinion of someone looking at it with fresh eyes