The fact that cutting only his tongue and not kill him is consistent
with Red John.Just like in Patrick's case where Red john wanted him to
suffer more, he didn't kill Patrick, but his family and continued
torturing Patrick for the last 10 years.I am saying if it was Red John
would make sense because he clearly wanted him to suffer more.If you
die, you die, but living without your tongue is a different kind of
matter.Of course, it doesn't make sense for Red John to do this, the
deed was obviously LaRoche's and the only way it can be connected with
RJ is if LaRoche is RJ, which I doubt, but anything can be possible.Maybe RJ really is LaRoche and he's pretending to play with Patrick some more.

This is NOT a Red John Theory, but a theory about the mysterios tupperware container in La Roches safe :)

I think La Roche has a son, born out of wedlock.. or something like that..
He hides the container for NINE years in his safe.. and the cast of episode 5x21 contains a young boy named Micah Nelson (maybe 9 or 10 years old ;)) his part in the episode is named "tupperware boy" ^^

http://www.imdb.com/name/nm3249216/?ref_=tt_cl_t4

what do u think? :)
sorry for my bad english, i came from germany :)

I don't think that its possible to spin this out for much longer without losing the audience so I think the identity of rj will be revealed by the end of this series. However, as there will be another series there will have to be a twist that stops the team arresting him. We know that rj has people in all areas of government so I think that they will find some way of discrediting the team. In which case they will have to go rogue in order to catch rj and clear their names in the next series (this is what I hope will happen anyway as they all have to play by jane's rules). 
As for rj. We know that from the red barn episode that jr started as a disciple of stiles. So rj's organization is likely to be a splinter of visualize, using the same mental tricks and discipline but with dedicated to killing. Such an organization is likely to be very useful to organizations such as homeland/CIA etc and so could be providing training or operatives for them. Whereby the rj killings could be the final part of the training. This would be supported by the exchange between kirkland and Bertram in I think it was 'there will be blood' where kirkland asked can we trust her. And Bertram answered I wouldn't trust anyone with this.
I also want to know what's the deal with Laroche. He is definitely hiding something. And what was in his safe anyway? We never did find out. I can so easily see him as rj as he is clearly intelligent enough and have similar interests. He's easily a match for pj. And his lack of personality could easily be a cover to hide a more vibrant personality. But somehow I doubt it. I definitely believe we haven't seem the last of him.

I'm not accusing LaRoche.

There's a question that has been gnawing almost as much as "Who is Red John?" 

WTF is in the Tupperware container in LaRoche's safe?????

Seriously, I am dying to know! 

Rate this Plausible if you've wondered, too!

J,J,Laroche

or someone working with that FBI agent Darcy.

I hope J. Laroche is RJ,i hate him so much(his face & manner of speaking)  ! The final of the show has to be great otherwise i will "delete" it from my mind ASAP ! Patrick can't be RJ,will be such a bullshit !!

Laroche seems like a big softy, so most people would be surprised if he was red john. But Bruno Heller likes surprises, so don't be surprised if laroche turns out to be red john! Also, there is laroche's secret...