hi im taylor. my theory is more like a fact. 
bret patridge is red john. evidence you say? well, in an episode jane was captured by some idiots and tied him up to a chair attempting to kill him acting like red john. and red john knew this was comming and he killed the people and ended up saving jane. he spoke to jane earlier in person but as his normal self. patrick jane didnt suspect a thing from him. but his voice gave EVERYTHING away!! i love this show. and there is proof on you tube. go tis url. 
http://www.youtube.com/watch?v=u1F2GdLLoWA watch before you judge! and comment what u think about this :)