Bruno Heller said we can trust the list. I think Patrick has got an other list,the real one.
He is Mar was written on the wall. If the R was an unfinished S this leads us straight to mashburn.
 In the first episode mashburn appears in he says "If you plan it right you can get away with murder" and " Next time I might be the killer."
He seems suspicious. 

The list has got to be a plant by Jane. There are so many little details that just don't fit with the widely accepted storyline. If Jane's real list was the names we saw in his book about midseason, then Jane spent the rest of the time laying a trap for RJ - a fake list because if RJ knew he was on short list of suspects, he'd kill Jane, Lisbon, the whole team because after 5 seasons, the one thing we know about RJ is that he doesn't allow loose ends that could get him caught alive. Jane really plays up the secrecy and locks on his loft door for the second part of the season to send a subtle message to RJ, that he has something to hide so RJ will come and steal it. RJ takes the bait and steals Jane's fake list and this is KEY: Jane doesn't even notice and continues his charade. Let's be clear that Lorelei is still alive when RJ steals the list so that's why RJ can make that video with Lorelei before he kills her. Lorelei turns up dead and soon after Kirkland steals Jane's list. This time Jane notices (toothpick scene) and assumes RJ has finally taken the fake list. He wraps up his charade almost immediately (ignoring the distraction of LaRoche).  This also allows Heller's statement that the list is real to be true because Heller would be talking about the first list and not the fake one.

This theory ties up all the loose end questions like:
Why the toothpick scene?How was the Lorelei video possible?
Why give us a glimpse of names at midseason if it wasn't going to lead anywhere?
Why were the names in the book (midseason) the favorite suspect while the ones in the finale were boring and mostly unqualified?
Would Jane really hide something important with locks that practically shout "look here!"? 

Logic:  3rd season, Jane told the whole team the plan and the audience the plan and RJ won.  4th season, Jane only told Lisbon and the audience and RJ still won.  5th season, Jane doesn't tell Lisbon or the audience the real plan.

The list is a fake and the names we glimpsed in the book are the real suspects. 

Mashburn is STILL my favorite suspect! I don't care about any list or verbal promise a Hollywood suit is dishing out. --- 

 From Theory #4018  Sezaru
" In the last episode of season 5, “Red John`s rules”, Lisbon  says to Jane, “I can keep secrets”; he disagrees, but in a very weird way."

--- I'm thinking they put that whole scene in there for a reason.  Lisbon thinks Jane doesn't know about her tryst with Mash-- Jane does.   

The Powers That Be are giving us little snippets that ---yes--- there will be future sexual tension between Jane and Lisbon.  Who could test the loyalty between two people more than a love interest?!  Hmmm??  So let's look at the creative and genius plot that could unravel if it would turn out to be Mashburn.!!!  

 We already know that Walt fits the mold and description.  (Stop harping on the height thing.  A couple of inches from a blind womans comment from 3-4 years ago is moot).  He may have only been in two episodes but has been eluded to a few times, right?  Therefore, I consider him to have been a suspect that's has been right "under our nose" the whole time.  Who would expect it from him?  He is such a charming guy!  Suave,  arrogant, cocky...oh wait... I just described PATRICK JANE!!!!  Again-  BOOM!  Another genius reason the writers and Heller  should bring back Mashburn to the mix.  He was the one guy Jane never really was able to get under his thumb.  (You know that would have to bother Jane!) 

I guess I just want to look at the most exciting and story-worthy possibility in these scenarios cause to tell you the truth... the list that we have now is quite yawn-worthy.  Unless these writers come up with some fabulous back story that goes deep into Jane's past and gives us some incredible insight that we haven't seen....meh.   Give me a Jane, Lisbon and Mashburn triangle.  It would tie up a season finale so superbly.

So...if Heller is telling the truth....he's making a VERY big mistake.

(IMO, of course.)

And another thought that came to my mind, about…Walter
Mashburn!  Ok, he is not on the list, so
what? Jane never reveals his suspects before catching them. At first, I said
ok, let`s trust Bruno Heller and accept that we can trust the list. Maybe we
can. Maybe all those seven are somehow involved. But also, The Mentalist is not
a show where they give us the killer just like that. Because, let`s be honest:
we have a list of  suspects, so when the
moment of revealing RJ will come, maybe we will be surprised, but not that
much. What is the point of knowing the suspects? It just reduces the impact of
the show. Some of the fans could say “Ok, we have a list. I`ll watch only the
last episode to see which of them is the bastard.”. And then, when he is
revealed, we would be like “Ok, it`s Stiles, or Partridge, or one of the other
five. Interesting, but not a bummer”

My point is, everytime I think about Mashburn, all the
things related to him make me think that he is RJ. Besides the fact that he is
rich, has links and many important friends, he is mean and always get what he
wants, there is something that intrigues me.

In the last episode of season 5, “Red John`s rules”, Lisbon
says to Jane, “I can keep secrets”; he disagrees, but in a very weird way, like
he actually know that Lisbon is hiding something from him. Now, from what we know,
which is the ONE thing that Lisbon never told Jane? Right, Jane has no clue
that Lisbon slept with Mashburn. Of course, she doesn`t have to share with Jane
her sexual life, but still, it`s Mashburn, not just a random guy. In fact,
neither of us knows how did Mashburn get Lisbon to sleep with him.

More than that, when we first saw Mashburn in the second
season, there was a moment when he told Jane “now you just have to catch me”.
Then, in “Red John`s rules”, in the video which RJ sent to Jane he says, at a
point “until you catch me, or I catch you”. Small clue, but still.

Also, did you noticed that, each time Mashburn appears
(especially in the first episode we saw him) a really creepy music plays in the
background?

http://youtu.be/2ji9kHzpKNQ

1: he sleeps with Lisbon
2: he is smart
3: he is rich
4: he is not in list of 7 suspects. PJ was waiting for RJ to send FBI to his room to take all those information's and maps for RJ and to see who are suspects. But PJ did all this in purpose to be one step ahead RJ. Now Lisbon and CBI and FBI knows 7 suspects and RJ will be able to act in their favor. Also Lisbon will get more closer to Walter and that will give more clue to PJ.

After all I can not wait to see how all this will end.

Thank you for reading,

Zoli

I know he is not on the list, I`m not an idiot. If RED JOHN REALLY IS ON THE 7 SUSPECTS LIST, this is not a theory, but just an interesting fact that came to my mind.
You know how all RJ`s accomplices always say that is a charming person who can play with people`s minds. Well, Mashburn even got Teresa Lisbon to sleep with him. I mean, we know that she has a thing for Jane, so it is really difficult to make her sleep with you all of a sudden.
He always gets what he want. I think we all think at Red John as an ugly creepy person, but clues and his accomplices`s statements prove that he could be, actually, even more charming than Jane is.
I say it again, I`m not accusing W. Mashburn of being Red John, but, in my opinion, he is the most charming person (except Jane, of course) of the show. He could make any women fall from him, any man feel "small and intimidated" by his power and charisma, and he could also make kids love him. He is smart, rich and funny. Nothing like Red John. This is why he could be, from this perspective, the most obvious suspect.
Of course, he also has a thing for red sweaters. Even his employees wear red shirts. But this may be just a coincidence. Anyway, I`m sure that Mashburn is not just another character in the show.