Hey All! 
This is not actually a theory but I will try to prove that the actual Red John has the 3 dots. That's why I'm gonna stick with my choice about Red John being McAlister (even thought I'm not sure about Patridge's death).
OK here is how i think things went. Red John bugged CBI offices a sloppy move that doesn't fit him at all and he did because he is freaked out. But, he didn't do it so he can hear what they say in CBI he doesn't need a bug for that because he has inside people, I think he did it so he can lead Patrick to Kira Tinsley. Red John didn't completely killed her and she let her see the 3 dots on the shoulder so she can tell to Jane while dies. Now he is one step ahead. He knows that Patrick will gather all 5 suspects to one place and make them reveal their shoulders and he can now plant the bomb to kill him (spoiler: we know from articles that Red John planted the bomb).

Patrick let their suspects know the location of the meeting just some hours before so Red John doesnt have a lot of time and he either knows the location because he is one of the remaining (McAlister)/// or Bertram informs him about it with his mysterious call and he is Partridge.
So Red John maybe not even be in the house or he knows how to survive the blast.

OK to sum up, Red John has gone desperate he could think about a better way to gather all suspects and patrick together but he makes a sloppy move to bug CBI so he can giveaway a clue to Patrick. But be aware that he doesn't give him a major clue that would really reveal him if his plan wasn't successful, he gives him a clue that gives away part of him because many people have the tattoo, that way he reduces the suspects but doesn't reveal himself.
PS1: Sorry for my bad English.

PS2: Check my video about Red John. (not sure if Partridge is dead :P)
http://www.youtube.com/watch?v=ohIxFnOnRCk&google_comment_id=z13sybuoil3mxjdzw04ch1ka1o3xj5sqkyc0k&google_view_type#gpluscomments

Just a thought.  In episode 2 when the three suspects are meeting in Bertram's office, Reede asks what mistake RJ made.  Jane then says the following:

"I would tell you but I always thought this room might be bugged... wired!"

3 episodes later, someone tries to bug Cho's desk. My theory is this: Jane hypnotized either RJ or one of his co-conspirators to have someone bug the CBI.  It would explain why someone would out of the blue hire a PI to do such a lame thing.  They didn't choose to make a mistake, they were hypnotically suggested to do so.

This is one aspect of the plot that I had major issues with this year!  If it wasn't Jane's doing, I hope there's a damn good explanation as to why RJ would hire a PI to bug the CBI.

This guy ( McAllister / Xander Berkley ) would be a convincing Red John... http://www.youtube.com/watch?v=vBvZ9JzQUiw ... In fact ... I think maybe the case is solved ....

So I'm curious about something.  Most of the theories I've read on Bertram ignore Rosalind Harker's physical profile of RJ, either unintentionally or intentionally.  May I ask why?  Her account of Roy Tagleofera was the very first piece of evidence about RJ.  Jane was absolutely sure Roy was RJ.  He even brought Rosalind to the morgue in season 4 to make sure the man he shot in the cafe wasn't RJ.  Even Dumar, the sheriff who wound up being the killer in "Red John's Footsteps" confirmed that Roy was really RJ.  So again I ask, why are so many people ignoring the physical profile?

Okay, think about this.  In season 1 finale, Rosalind gives us the physical profile for RJ.  2 episodes later, we meet Bertram for the first time.  He's six ft 3 and bald.  If Bertram is RJ, that would imply Bruno Heller decided 2 episodes after giving us our first evidence of RJ, he would introduce the "real" Red John who doesn't fit the evidence...  Really?  Is that not an incredibly convoluted idea?

Anywho, I would like some people's thoughts about Bertram.  Comment below if you have a theory that might explain away Rosalind Harker's description.

I have argued for Ray Haffner as Red John,

but,

If we are judging the last seven suspects by the actors playing them, then Xander Berkley ( portraying McAllister ) comes out way on top...Anyone who has seen him in other roles ( like Percy in the show Nikita, or " The Man " in the series " The Booth at The End" ) knows he has the intelligence and subtlety to play a character like Red John...The small town hick Sheriff he plays in The Mentalist almost seems like a waste of talent...but he has played other characters, convincingly, that would be more than a match for Patrick Jane ....

As a director he would be your perfect choice to play Red John....A guy that can play the simple small town fellow....but change gears to emote menace and a top level intellect...

Just a couple of notes.

1) The CBS Mentalist site now has two previews on it. 

2) One of the previews specifically says that RJ brought the bomb to the meeting to kill Patrick and the others.  This is a blow to those who say that RJ can't be on the list because why would he come to the meeting.  The answer is that RJ didn't get the memo that there are two more weeks until he is unmasked and planned to end it on Sunday.

3) I honestly believe you have to get it out of your heads that BH is going to pull a head fake.

If it's Partridge or the Michael/Bob Kirkland twin thing then it's just a stupid ending that is so cliche.

4) I am still betting on McCallister since he was the first suspect we saw.

Apparently everyone is still on the idea that Partridge faked his death.  I believe everyone is entitled to their opinion, but I would like to make an argument that Partridge IS really dead.  Here are some very good options for why Red John would have killed Partridge first.

1.)  It's a trap!:  RJ knew Van Pelt had bugged the suspects phones.  Partridge was not a vital member of Tiger, Tiger, so RJ chose him as bait.  He attacked him, then called in an anonymous tip to lure Jane and Lisbon to the house.  Unfortunately, Jane and Lisbon had a fight, so they were separated at the time, and Jane didn't show.  RJ lets Lisbon live, cuz he's really after Jane.

2.)  He knew too much:  Partridge said "Tiger, Tiger" so we can assume he's a member.  So what does he bring to the table as a member?  Forensics!  That's his profession after all.  He covers up the evidence for various crimes, especially Red John's murders.  He makes sure there is no evidence that can be traced back to RJ.  Therefore, he might know the most incriminating evidence about RJ.  He knew too much, so he was the first to go.

3.)  Ego:  We know RJ is very narcissistic.  Perhaps the thought of Jane qualifying Partridge as a suspect insulted him?  RJ killed Jane's family for insulting him.  It stands to reason that RJ would kill Partridge if he thought he was not worthy of the Red John name.

4.)  He wants to get caught:  RJ has shown he truly loves the cat and mouse game with Patrick.  The fault of genius is that it craves an audience.  Somewhere deep down, RJ really wants to Patrick to figure it out.  He killed Partridge to narrow the suspects and bring Jane one step closer to meeting him in person.

Truth be told guys, I feel those are all legitimate reasons, and I will be really disappointed if Partridge comes back from the dead.  it's such a cliche plot device that we've seen a million times before.  Don't we expect more than that from Bruno Heller?  I know I do.