Patrick's father is Red John. Clearly.

Why is Gale Bertram on the list of 7? Makes no sense. Does no one remember the episode Strawberries & Cream, where Red John's associate (the mole) leaks the floor number of the hotel where Hightower is hiding? If both Red John (Bertram) and his associate O'Laughlin had different info on where she was hiding, they would know it was a trap and wouldn't have sent the assassin. Therefore, Bertram cannot possibly be Red John. Besides, he's too likeable. A puppy dog.

I'm thinking it could be Alex Jane, although it is a pretty big leap, given that RJ's interest in Jane was (seemingly) coincidental - i.e. Jane brought about his interest, rather than RJ choosing him at "random". However, how do we really know that it was coincidental? It could've been set up by Alex himself somehow. We don't have enough info really.

We know how Red John got the suspect list. We clearly saw his associate, Bob Kirkland, steal a copy of the list and begin to narrow it down. Obviously, they're keeping tabs on Jane - they've either bugged him or have him tailed for an extensive period of time, and are therefore able to know his contacts and his mindset. How RJ knew about the girl (the memory), however, could only be explained by his identity as his father, or of someone who he knew at that age. Alternatively, he could have an ally who knew Patrick from a young age (his father, or maybe the big fluffy haired guy who played one of the Others in Lost).

My theory about these crime shows is that, if a "big" actor comes in to play an "extra" role in an episode, they usually have a bigger part than you would first expect. These actors/actresses are unwilling to play a very small role. In the season finale, it was obvious that Laura San Giacomo was the person of interest, since she is too big an actress to have a 2 minute extra slot.

The only other thing I can think of (if it's a twist) is that Red John is a woman and the reason all his associate refer to him with the male pronoun is because he is biologically a woman but has the mentality of a man.

But let's get real. The writers of this show didn't know who Red John was when they started writing the script. They probably don't even know who he is know. His identity will be introduced randomly when it gets close enough to the end of the series, and that really sucks, because theorising on previous episodes is pointless for that reason. Let's hope they remember Strawberries and Cream before they slip up and give Bertram the RJ card.

Lol.

I'm kidding, I love this show.

What if Red John isn't just one person but all seven from the list? Not sure if this is plausible but still, could be an option he's more than just one person. That could explain why he has so many connections. People like lorelei know him as one person but that might not be the same person in another case. 

Patrick smiled when they broke into his room. He prepared the room so, RJ could guess
the happy remember and the possible suspects. So, he already knows Bob kirkland is RJ.
But, in other episodes, we will see that kirkland is only a RJ´s friend. And we can´t guess 
nothing more, because the guionists have not thought about more.

You may think this is a bit stupid, but the real thing is that Red John nowadays is... nobody. I mean, I bet the writers haven't chosen yet who he is, so everything we can think about means nothing right now. I wish they had chosen who Red John is a couple seasons ago, so our "investigations" could make real sense.

Alright. We now have a list of seven suspects. Let me reduce it to 5:

Gale Bertram: Not 100% sure he isnt Red John, but look at it this way:
Red John would not lose at poker. And if he did, he wouldnt accept Patricks help. 
Pointing towards him is of course the assassin with the rope in his room.

But now to Robert Kirkland: He, I am 100% sure is not Red John. 
He steals Patrick Janes stuff AFTER Lorelei is dead. So Red John knew the list before the break-in. He wouldnt have had to take this risk and send HomelandSecurity Agents to steal the stuff. They might ask questions. No, Kirkland is after Red John himself. Red John must have a lot of friends but also a lot of enemies. Kirkland is his enemy. He wants to hunt down Red John and steals Patricks stuff to do so. 

I wish i had put up my personal list before the episode came out.
From the seven names i came up with only 4 were right.
Sheriff Thomas McAllister, Robert Kirkland, Ray Haffner & Brett Partridge.
I thought both Bertram and Stiles were too old to be Red John and Reede Smith was someone i didn't suspect at all.
My main suspect is Thomas McAllister, i always remembered him from the first season because of the actor who played him.
When he showed up in the 30 suspects list,  i had a gut feeling it was him.

Many people have already dismissed him and Reed as Red John but i disagree with their reasonings.
Many refer to the fact he was only in one episode of the show so far but Red John has been stated to be a Waldo type character in terms of appearances on the show.
Most people seem to mistake this as he being a character which shows up every couple of episodes but thats not the case.
The point of being a Waldo type character is that he is always in the background but almost never seen.

This fits with the idea of McAllister being Red John as every other time we have seen him in the show has just been a glimpse of him.
It could have been his back we saw when Rebecca was poisoned as both law enforcement uniforms of her killer and McAllister are similar.
His overall demeanor from the episode he was credited to being in was that he was suspicious and creepy.

Patrick has stated before that Red John is a showman and with this we can premise that him loosing to patrick in rock, paper, scissors and being frustrated and baffled was just an act.
Everyone on that list has been one upped by patrick one way or another whether it by destroying a team to a toothpick in a door.
The idea that Patrick made him look silly, thats why he couldn't be Red John is a stretch as he has done that to others as well and unlike the rest his act was easier to pull off.

Another thing i'll mention is that people state that his actor isn't charming/good looking enough, if you haven't seen how his actor really looks like(without the mustache and the shaven beard) i suggest looking at his imdb page http://www.imdb.com/name/nm0075359/.

I also believe that Reede is an accomplice of Red John and that he wasn't just added to fill up the list.
To me he is so out of left field that i believe he has some connection to Red John i believe the list not only has Red John on it but his contact in the FBI.

I would like to add that i think Todd Johnsons murders of cops ties in to the fact that the Sheriff wanted to get rid of certain individuals in law enforcement that he felt were too suspectful of him as in his personality/behaviour and not that they knew he was Red John.

Finally i would like to mentioned the fact that people state that he was too small time to have that many devoted followers and that some were so high up authority wise for him to be a real possible candidate of red john.
Even for a small time Sheriff, everyone who knew of him throughout the episode he was in thought highly of him even though we as the viewer saw the darker side of his personality which no one else knew of.
I believe this charisma he has and a hypnosis type skill he uses has been the reasons why he has such influence over so many individuals.

As for the fact he knew a personal memory of Jane's, i would say that he was either there when Jane was a kid or most likely got the info out of Jane under hypnosis when Jane was inside the Mental Institution.
On the matter of Red John knowing the list, i would say its a suspension of disbelief as Red John is stated at this moment in time to be smarter then Jane and the fact that Jane was able to come out with 7 names shows that Red John should be able to as well.

Not a theory, just some thoughts.

1. We don't know for sure if the "list of 7" is really Patrick's list. Patrick didn't give us his list, he just showed Lisbon (and us) some cards with some faces on them. After he had already seen the Lorelei CD. Maybe it's his real list, maybe it's not. We can't know.

And no, I don't care what Bruno Heller has said. And by the way nowhere does he say "yes, RJ is one of the seven". He just says "no more twists", which could mean anything. 

2. Something is really wrong with Kirkland's name being on RJ's list. 

We all know about the handshake inconsistency here (Lorelei being in prison when Patrick shook hands with Kirkland) and we can safely assume Patrick knows too. Why would RJ list Kirkland's name? Some possibilities:

- Lorelei knew that Patrick shook hands with Kirkland, despite being in prison when it happened. If this is the case, than how did she know? Kirkland told her? Someone else in the CBI saw them shake hands and told her? And by the way, why would anyone tell Lorelei that they shook hands with Patrick at all? Can you imagine RJ visiting Lorelei in prison and telling her "hey, Lorelei, just so you know, I shook hands with Patrick Jane"?

- Patrick's list is real and Red John somehow obtained it. It must have happened before Kirkland had those people break into Patrick's room (Lorelei was already dead at that moment). If this is the case,  than why would Patrick put Kirkland's name on the list, knowing that he shook hands with him when Lorelei was in prison? And one more thing. If Patrick already had a real list by 5x16, then what was he doing in the next episodes? Imitating hard work?

- Patrick's list is a fake that he designed in order to mislead/trap Red John and Red John took the bait. Again, RJ did not get the list from Kirkland.

- Red John is merely guessing and for some reason Patrick makes Lisbon (and us) believe that RJ has the real list. This would probably mean that Patrick suspects Lisbon.

3. How does Red John know about some obscure childhood memory of Patrick's?

Again, possibilities:

- Red John has real "powers". This would mean that Bruno Heller and co have made a turn towards X-Files territory, which seems ridiculous.

- Red John is someone from Patrick's past, someone really close to him, someone who knows him very well. Father, brother, childhood best friend, something like that.

- Patrick has in fact told someone about this particular memory (and probably other things too). Red John recruited this person and/or tortured/hypnotized/whatevered them into telling him things.

- Red John gathered the info from the mental institution, that Patrick was in after Red John murdered his family. Patrick may have shared - willingly or not - some private things with doctors, nurses, other patients.

- Red John has hypnotized Patrick.

- Red John is Patrick.

That's it. Thanks for reading. ;)