Red John is not a single individual, but it is in fact a cult of sorts. Patrick Jane may or may not be a member.

PEOPLE, YOU HERE RATHER BELIEVE THE FACT THAT BRETT PARTRIDGE IS ALIVE AND IGNORE ALL EVIDENCE THAT YOU HAVE ON PJ BEING RJ..I AM ASKING YOU WHAT EVIDENCE DO YOU HAVE THAT BP IS ALIVE? NONE..IF SOMEONE WRITES SOMETHING ABOUT PJ, BAM! UNLIKE, DISLIKE...BLA BLA...AND YOUR BEST DEFENSE IS WHAT HELLER SAID....

HELLER SAID A LOT OF THINGS AND AMONG THEM IS ALSO THAT BRETT PARTRIDGE IS DEAD, BUT YOU KEEP ON WRITING LIKE HE IS NOT SO I WILL WRITE PJ IS RJ EVEN IF AT THE END OF IT ALL HE IN FACT ISNT RJ BECAUSE THERE ARE CLUES STRONGER THAN ALL THE CLUES WE CAN PUT TOGETHER SO FAR THAT PJ IS RJ THAN FOR EVERY SUSPECT ON THE LIST...

I WATCHED THE FILM BLOODY VALENTINE ( STARRING JENSEN ACKLES) WHERE THE PLOT WAS ALL ABOUT ONE KILLER WHO WAS KILLING EVERYONE...THE DIRECTOR DID SUCH A GOOD JOB THAT ALL THE TIME I WAS CHEERING FOR ACKLES GETTING ALIVE OUT IT ALL BUT AT THE END HET WAS THE KILLER WITH 2 PERSONALITIES....HE TRAPPED HIMSELF, WAS EVEN WOUNDED IF I REMEMBER BY HIMSELF AND ALL THE TIME I WAS BLAMING THE OTHER "MYSTERIOUS"  GUY WHO SAVED THE DAY AT THE END...OR DIED AMONG THE WAY :D I DONT REMEMBER...

PARTRIDGE DEAD THAN ALIVE WOULD NOT BE A BRILLIANT PLAN RJ MADE TO GET OFF THE SUSPECT LIST FOR ME AND IT WOULDNT BE A BRILLIANT PLAN MADE BY HELLER TO KEEP HIM OF THE HOOK.....

FOR SO FAR I CAN ONLY SEE THAT ALL THE RJ SUSPECT ARE GETTING OF THE HOOK ONE BY ONE....PARTRIDGE,SHERIFF,KIRKLAND BUT I CAN SEE THAT WE ARE SEEING MORE OF STUFF WE DIDNT KNOW ABOUT JANE......AND NEXT WEEK WE WILL SEE EVEN MORE ABOUT JANE...WHY IS HELLER GETTING US SO CLOSE TO PJ ALL THE SUDDEN...ISNT HIS JOB NOW TO GET US THE FACTS ABOUT RJ AND GETTING US CLOSE TO RJ, NOT JANE?

AND YES, SOMEONE WILL DIE FROM THE LIST IN THE NEXT EPISODE (PROMO) SO THAT LEAVES US WITH WHAT? 3 MORE SUSPECTS..

I DONT THINK RJ WILL KILL ALL OF THEM BESIDE HIMSELF AND THEN GO TO PJ AND SAY "HONEY IM HOME" :D

I DONT BELIEVE THAT THE LIST OF 7 THAT IS STOLEN HAS THE NAME OF RED JOHN AND I HONESTLY THINK THAT THE SECOND LIST DOESNT EXIST

AND YES, UNTIL I READ SOMEWHERE THAT HELLER SAID PATRICK IS NOT RED JOHN AND RED JOHN IS NOT PATRICK I WILL STAND FOR THIS THEORY 

IF SOMEONE ELSE TURNS TO BE RED JOHN I WOULD LIKE THAT ALLOT, BUT NOT SOMEONE PREDICTABLE....IT WOULD BE COOL:)

AND IF SOMEONE FROM THE LIST OR EVEN BP ENDS UP TO BE RJ I WILL RESPECT THAT AND I WILL RESPECT AS I DID IT SO FAR ALL THE PEOPLE WITH THEIR THEORIES, JUST TO SAY THIS I DIDNT PUT ONE SINGLE UNLIKE ON YOUR THEORIES BECAUSE EVERYONE HERE PUT AN EFFORT TO WRITE HIS THEORY AND HAD GIVEN SOME OF HIS TIME TO PROVE US ALL SOMETHING EVEN IF ITS WRONG MAYBE, EVEN IF IT WAS PURE GUESSING...:)

AND THIS IS FOR SIMON BAKER AND HELLER IF THEY EVER READ THIS :)

SIMON DONT LET HELLER MAKE YOU RJ :) WE LOVE YOU JUST AND ONLY LIKE JANE! :)

I have seen Bruno Heller previously stating to media that Red John is not a one person. (When season 3 or 4 running)

May be there is no Red John. It must be a criminal organization with psychopaths.

A single person cannot do such accurate killings with such precision.

May be all 7 suspects are connected to this :o 

HELLO Everyone!!!!!! DID you all not watch the Patriots and Saints play yesterday!!! TOM BRADY said TYger TYger calling a PLAY TOM BRADY IS RED JOHN!!!!!!!!!!!!!!!!!!!!!    :)))))))))))))))))))))))))))!!!!!!

I have to credit to Toykantopcu http://www.whoisredjohn.com/See-a-theory-Red-John/5941 for pointing this out.
 


I disagree with him/her about one thing: There's no smiley. But Toykantopcu is on to something. Thanks for mentioning Kubrick, that was key.


Toykantopcu observes a "Smiley" on the sign on The Rigsby's wedding carriage. Great observation. This is not insignificant, if the insight about Kubrick is on the mark. Here is what I'd like to add. (Since I cannot share the picture here, I will post the picture in the comments/argumentation section below right after I post this).


The hearts are eyes, the underline is a... frown. Not a smiley. But perhaps designing the sign in this way was intentional on the screen writers' part. They know people are looking for these kinds of things, people like toykantopcu, for instance, people looking for kubrickian symbology (Have you ever seen "Eyes Wide Shut"?).



If it is the case that placing it there is intentional, and we -- I include myself in the we -- are not just reading into it, and they are doing a kind of hat-tip to Stanley Kubrick, there's more to this than meets the eye.



Color scheme is important: Red and Blue.



Think of show titles. All red, shades of red, or red things up until episode nine of this season (2 exceptions: the "Pilot" and "Where in the World is Carmen O'Brien"). In this shot, two red hearts (okay, pink); two lovers departing from the scene on camera; they are also departing the show. We are very happy for them, but sad that they are leaving, hence the frown. The "red chapter" is also drawing to a close. Rigsby and Van Pelt were with us since the beginning of this chapter. And we are left standing here watching the ride away thinking, not only of their future, but the future of the show. Enter, Blue...



Blue flowers surround the frame. Rigsby and Rigsby (now) are are set in the frame, like the two pink hearts framed by the flowers (with almost "fearful symmetry" -- very Kubrik, indeed!).


Picture the sign on the carriage like the screen you are viewing. The frame of the screen never moves; what's in the frame is moving away. If the camera held this shot long enough, our "just married pink hearts" would eventually leave the screen. Applied to the sign, when the words just married and the pink hearts are removed, we are left with a blank slate surrounded by a blue frame. The next chapter, or the next episode at least, is Blue.
 


[Not quite a blank slate, though. More on that later… ]



Red and Blue are the only colors on the screen, besides black and white (ignore the green) This is intentional. Yet, there is one other thing. Red tail lights.



Ominous red tail lights, because we have a sense of foreboding for this couple, and we cannot help that, given the current state of affairs with Red John. Yet there is hope. The tail lights are not lit, which means two things. First, they are not stopping, they're going.   --> Away.


Second, the are not as red as they could be. If they were lit -- carriage stopped -- they would really be red -- we'd be seeing RED and it would stand out. The lights are not red. Maybe we are being told not to worry.


Hence a frowny, not a smiley. Frown because we cry at weddings (did you cry?). Frown because this is NOT a sign for Red John, that is, RJ has not marked this couple -- a possible reading that I HOPE is right. Besides, why would Patrick, who I believe made this sign (he was late to the wedding because he was seeing to the details of their departure at the last minute -- 21 gun salute, carriage ride, and other little details from the detail man), why would he mark their carriage with Red John's mark? -- That man of attentiveness to details.


So, we are left with a happy ending for these two, after all. That's my theory anyway.


End of Theory.



RED GIVES WAY TO BLUE…  I mentioned "more on this later," and I place this part in brackets to keep it separate from what I don't want mixed with anything I wrote above. 



[Some of the things we find suspicious in the Red chapter are not things "Red John." They are things "Blue," things that were staring us right in the face and we were looking right at them, but we were looking for the wrong thing and looking at the wrong way. E.g., In episode 6.2, when Smith, McAllister, and Bertram are discussing Jane after he leaves Bertram's office, are you sure they are talking about how much he knows about Red John? Or could these creepy characters be talking about something else? Something will bleed into the next chapter, with blue blood, pun intended.]



One more thing. If you want to see more Red and Blue in this episode and eerily Kubrick-ish, go back as revisit the scene where Jane is taken hostage in the chapel. What do you see. The play on Red and Blue light in that dark chapel scene is eerily Kubrick-ish, in an eyes wide shut sort of way. 

We are tricked,each episode Bruno wants to change our minds.They are 7 epsiodes before revailing RJ.
I think that each episode is for one suspect.He wants us to suspect everyone.But in the end,it will be a big suprise who RJ is. ;)

Concerning the plot from the 4th episode ---> I would believe that the list is a fake! But we must understand what is the meaning of the fake! And this, I guess, is related somehow to Bruno Heller:

He just confirmed that Red John is on the list! But he never said that all the "suspects" are viable ones. Red John has the list and maybe he thinks that Patrick believes about these suspects to fit indeed the case. Why RJ would believe ? Because he sees his name on that list! And that's the trap made by Patrick for him. 

But now is the big problem. As it is said in the 4th episode plot, all the people (who appears on the faked list which he planted) are in danger. That's something Patrick Jane didn't expected ! We can see his face in the 4th ep. promo. Who would imagine that RJ would kill the other suspects so that he would incriminates himself ! But apparently is not like that. Who knows...

Other thing I want to write about:

It is rumored in many theories that Partridge's killing has a connection with William's Black poem: A brace of partridge. Also appeared another thing related to these author about some pigeons! As we can see in the 3rd episode, McAllister fears the pigeons ----> Could be him a candidate to be killed in next episodes ? He would be related somehow to this. And also not forget the pigeons in that house where was discovered Partidge: like a clue for the next crime.