In my opinion i do not believe that red john killed the p.i that bugged cho. Red john said in the season finally i do not like cheap imitations of my work, its 1. Hard to believe its more than one person 2. Yes red john has many friends i highly doubt a very intelligent person like red john would use the 3 dot symbol like hey this is us 4. Out of all the words in the world why would he use tyger tyger its just not that intelligent of a word to be used from somebody that has eluded patrick jane for 6 years. If bruno heller in the end makes it out to be that red john is the leader of tyger tyger thats not such a great plot a, red john has killed about 30 ish people over 12 years do you think he would easily give a clue like a three dotted tattoo away so easily, what gets me is red john yes has friends but what happens when patrick gets close they either commit suicide or get killed by red john why would red john say hey jane i know the list here it is by the way 3 of the 7 people on that list have tattoos if i was red john i would kill all of them it does not make any sense. As far as who red john is i have no clue it could be any man or women. Yes a lot of people are ruling out women and partridge but the way this show is no one is off the radar. Fyi i would not trust rosalind harker for a blind women who never leaves the house she sends a pretty good letter remember the s1 ep9 flame red the boy does pretty good at playing mentally disabled 2 more weeks and the truth will be revealed lets just hope heller does not f it up.