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Reede Smith CANNOT be Red John, because one thing we know for sure is that Red John and Michael Kirkland knew each other. Therefore, it is highly doubtful that Red John would have killed Bob without saying something about his brother. Think about it, the one thing Bob was after was Red John, and for Red John to not even hint at knowing his brother and relish in his victory would be very uncharacteristic.

Also, it appears that someone on Jane's inner circle has turned, and Jane knows about it. Because Jane is feeding the team more details than ever, like the tattoo thing. If Jane truly believed that Red John had a tattoo, he would have never spilled. Think about it, has he suddenly become a team player on the biggest case of his life? Not a chance! Did the team have to know about the tattoo for them to go along with the plan? No, Lisbon was ready to gather them up right after she heard about the list of seven. He planted a false idea in the team's head because he knew it would be relayed by to Red John. There is definitely a rat!

There are three options on who the rat is:

1. Lisbon unknowingly is communicating with Red John because he hypnotized her? Perhaps the nurse activated her with the name Carmen Lee.

2. Van Pelt could have turned, which is a popular theory. However, I'm inclined to believe the Craig situation changed her, and she is has a much stronger threshold now.

3. Rigsby would be the biggest twist of all, because no one would ever expect an "oaf" like him to be in allegiance with Red John. And no one would expect Grace to be duped yet again into pairing up with a man with ulterior motives.

I said this before, but remember Jane never told them that Michael Kirkland was Bob Kirkland's twin. To me the fact that it is left unsaid is because he believes someone in that group cannot be trusted. Furthermore, Jane's silence on the Michael Kirkland matter could give us a big clue about Red John. I have thought maybe Michael Kirkland is Red John, but who knows? 

There are a lot of loose ends that need to be tied up, though, that is for sure!