PEOPLE, HAVENT YOU SEEN THE HIDDEN CLUE HELLER HAS TALKED ABOUT, ITS OBVIOUS, REALLY OBVIOUS THAT CBI RON IS WORKING FOR RED JOHN, HE APPEARED AT THE VERY END OF THE EPISODE, HELLER SAID IN THE INTERVIEW THERE IS GOING TO BE A HIDDEN CLUE AT ALL THE LAST EPISOODES, IT WAS CLEARLY OBVIOUS THAT PARTRIDGE WASNT RED JOHN AND HE WAS AN INNOCENT AND CREEPY GUY,

I THINK RAYMOND HAFFNER IS THE ONE , BERTRAM ISN OW TOO OBVIOUS, KIRKLAND IS ALSO WORKING FOR HIM, WE SAW THEM CHATTING IN A SCENE IN SEASON 5 ... THEY ARE BOTH WITH RED JOHN, MCALLISTER AND SMITH DOESNTHAVE ANY ARGUMENTS TO BE RED JOHN, AND STILES IS RED JOHNS FATHER!!

I think its haffner