Stoopkid

Why did the RJ leave a body at her house then ?

Rosland was RJ's girlfriend, there is no need to doubt it, what possible reason would there be ?

We saw RJ on the farm, behind the door Jane almost opened and running away from the house.

To Stoopkid

You said in a comment that there was no evidence Rosland Harker was ever with RJ.

Yes there is.

Sheriff Dumar confirms it, " Red John was a friend of my fathers," ect.

And the fact RJ dumped the body of the morgue attendant there in season 4.


Cheers 

I'm okay with Sheriff McAllister being Red John. I think the writers deliberately portrayed him as a pathetic loser to avoid making him grandiose.  Can you think of anyone in the real world wanting to be just like Red John now?  Thanks!

In my mind at least one big clue was resolved.  People familar with Scottish syrnames know that "Mc" is an abbreviation of "Mac."  Perhaps in Season 1, Episode 11, the victim was trying to write He is Mac (as in MacAllister)  rather than He is Mar.

One thing that just doesn't set right with me in the reveal is the choice of weapons.  Given a choice, Red John always used a knife,  A handgun seems a little too clean and antiseptic for the final kill of his arch rival.  Then, as this is sinking in, the dark headed lady walks up and slashes at Patrick with a long bladed knife.  I think that this lady may turn into Patrick's next arch rival on the series. 

All in all, we still must remember that all of it is fiction written to entertain us and shouldn't be taken too seriously.

RED JOHN WOULD HAVE....

McAllister is NOT Red John.

When Patrick Jane finally caught and subdued him:

Red John would have been happy that Jane finally caught him.
Red John would have wanted him to KNOW, to UNDERSTAND, that he was Red John.
Red John would have mocked him and taunted him.
Red John would have laughed maniacally.
Red John would have said all he could to hurt him as much as possible. 
Red John would have expired with a smile on his face... A big, Red smile.

Am I missing something?? Red John is McAllister and yea we were all disappointed but what has given some of you the idea that RJ is alive???

The show has moved on and some of these theories are becoming laughable and pathetic. Red John is dead and that is that

Season 6 episode 1 
Ok so at then end of that episode partridge is supposedly killed by Red John (McAllister). When lisbon  entered the room she was attacked by pigeons, as we all know McAllister is afraid of pigeons. Everyone is saying that the way partridge died isn't rj like. I have to agree with them on that but i was thinking maybe mcallister rushed it because there were pigeons in the room, he was scared and was sloppy. He heard Lisbon entering the house and couldnt finish what he started. Maybe thats the reason why maybe not, who knows partridge could still be alive. But if McAllister is red john, that is my opinion on what happened that night.

What was RJ connection to Visualize ? We had Stiles knowing about where Kristina Fry was and then the Red Barn episode that underlined a connection between RJ and Visualize and then nothing ? WTF

How did RJ get the list of 7 suspects ? At the moment it looks like they through it would be a good idea in the writers room to creep everyone out, then when it comes to it they realize they can't explain it and just kill of RJ with the words "i'm a real psychic." - That's not acceptable.

What is the "He is Mar," thing mean ? It can't mean he is marked cause the person would just put tattoo, also can't be he is McAllister, why both when you're dying putting "He is," you'd just put the name.


Cheers