There is no Red John, when Bruno Heller wants to reveal who Red John is they will put small pieces together from ever episode and create a Red John. So what I'm saying is Red John has not even been created yet. Stories change everyday, Bruno Heller probably wakes up in the morning and changes everything around, why? because he can and it's so easy to do.

Red John was probably one of the 7 until ratings for the Mentalist are high, therefor it means they can make more money so they have to change the story line to keep it going. Wake up people it's a TV show and a great one at that.

Not to mention, if Red John was already included in the story line don't you think some internal leak would have shown up on the internet by now?

And again if the leak did show up, they would just change the story once more.
So like others have stated, enjoy the show and GIVE UP!

I'm a big fan and i love mysteries .
but let's face the fact , we're not going to find out who red john is for at least 6 months . so forget about it .
and for the record i am confident that none of them knew who red john is in first three seasons or even more (even heller) or they change their story that is why you cant tell who red john is . 
at first i thought it was patrick , then his father , then stiles and now whit this 7 suspects and clues no one
don't waste your time , i love you all.

This is not a theory but rather a set of questions and remarks from the latest episodes:

1- Have you all noticed how the physique of Bret Partridge changed over the seasons? in season one he looked odd and a bit geeky. In season five finale he looked more charismatic, handsome and...confident

2- Regarding PJ's sweet childhood memory. He said that no one knows about it. But I think someone does: His shrink. The one who treated him right after the death of his wife and daughter. When a psychologist treats someone, they usually ask the patient to talk about old memories and their childhood so it is very likely that Jane mentioned it during his treatment. So I think if PJ wants more clues as of who is RJ,he should go talk to his ex shrink.

3- It is weird how in the season finale he left the woman alone in the police car without any special security, knowing that RJ accomplices have suicidal tendencies.

4- It is weird how PJ broke the CD. I would have expected him to analyze it for two reasons: 
  - Lorelei was somehow in love with him and maybe she used a particular word or sentence that can be a clue as of who is RJ   
 - Technical analysis with zooming on the image and amplification of background sounds to try to find out where is this sort of warehouse located

5- Lisbon's hand scratch. Why is it mentioned on a season finale? is Lisbon somehow involved? I would rather think that she is involved in a different story, maybe a personal one, but not regarding Red John

6- Why didn't PJ immediately dismiss Bret Styles? He is now very famous and the head of visualize. So if the priest were to describe him (red barn), he wouldn't have said 'some kid', he would have referred to him as 'the now head of the cult who was just a member back then'.

7- Lorelei said she will have to die because she told PJ that she and RJ shook hands. BUT
:- How did RJ know that she told PJ?
- wouldnt it be more logical if she had to die because she was seeking revenge for her sister Miranda?

Please be easy on me and all your thoughts and comments are welcome:)

1) As we kolnow from Rosalind Harker, Red John is under 6 feet tall.

Bob Kirkland 5'9"
Gale Bertram 6'3"
Bret Stiles 5'8,5"
Sheriff McAllister 6'
Reede Smith 6'3"
Ray Haffner 6'1"
Brett Partridge 5'11"

So there are three left:

1) Bret Stiles
2) Bob Kirkland
3) Brett Partridge

2) In 5x18 Lennon knows Red John but doesn't know Bob Kirkland.

2 last suspects: Bret Stiles and Brett Partridge

Why I think it is Brett Partridge:

-) We know him since the first episode
-) Bruno Heller said we will be disappointed when we know RJ.
Wouldn't you be disappointed with such a jerk?
-) RJ cited William Blake's "Tyger, Tyger".
Now guess what the name of one of his paintings is:
A brace of PARTRIDGE

The list of 7 names was a clever red john trick.  The list was obtained by Robert Kirkland's agents and using the same process as Jane, he narrowed it down to the same names.  The list was not read by Lorelai, but by her twin sister is who actually not dead. Or lorelai is alive and it was her sister that was killed. Jane either already knows this, or will figure it out.  After all, he expected red john's accomplices to raid his office and was pleased when learned they did.  Whether he altered information in anticipation of this or not remains to be seen. If so, one name was left off the list which would be Red John.