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