ok there are alot of amazing theorys on this site and i am here to share mine cause all i do is read lol here goes.

mcallister- no. simple. he is just too weak; you can see it in his eyes and that he doesnt fit the physical features. he works for red john tho.

stiles- no. he is old and i remember jane saying "you? you wouldnt hurt a fly." 

bertram- maybe. as i read its obvious it isnt him and he doesnt fit the physical features as well, but then again, bruno says fans will be disappointed on who is red john and for some reason bertram sticks out to me when bruno says that because maybe, just maybe, he wore a wig and faked all that stuff in front of that blind lady just so she couldnt expose him. 

kirkland- no. we all saw he get shot 6 times from the back, i doubt bruno would bring him back.

haffner- no. i dont think he is dead and i doubt he is red john or he works for red john. i dont think he has anything to do with red john. looks pretty innocent to me. but he has the hair of red johns describness and maybe the blind lady didnt know what color hair he had? how did she even know it was black hair? 

reede- no. he is going to die in episode 7. hes too weak to be red john.

partiridge- maybe. he is my top suspect because when lisbon went and saw him and he fell, then he died, she got up and then looked at the opened door (then again i wonder who opened that door) there was nothing behind her so whoever was behind her couldnt have pulled her from the back; there was nothing. im guessing partridge pulled her and had his way with her. 

lisbon- but then again, who remembers walter mashburn? IMDB put walter mashburn as red john and that got me thinking so much, lisbon slept with walter and maybe just maybe he is red john and he didnt want to hurt her? and maybe, she knows what happened that night. maybe lisbon is a part of tyger tyger.

i have some other things id like to share as well.

maybe red john isnt just one man? maybe he is a huge group of men who help him kill all the people he kills?

or maybe jane is in a mental institute and his co workers are his room mates and he became so obsessed with who killed his wife and daughter that he went crazy and landed in a mental institute. crazy hahaahah.

or maybe one of janes co workers; cho, wayne, grace or lisbon could be working for red john? who knows.

all in all i cant wait till i find out who red john is. 4 more days :D 

and patrick jane is one sexy motherfucker.