as i was reading some of the theories here i realized something.Red john might not be one man....but an organization...like visualize.i have reason to believe there's quite a few Rj's...let me explain.when Rj shoots the filmakers he uses his right hand...when he is drinking tea with rosalind uses his left hand therefore akes perfect sense that timothy carter was one red john,rosalind knew one red john which is roy taliaferro.rebeca knew a different red john,lorelie martin knew a different red john .when red john kills the first victim and we see him fighting with the guy(i cant remember his last name)he has a very different body,he seems smaller or thinner than when he killes the teenage filmakers. therefore we are not actually looking for red john but who is the mastermind behind it all.in the season 4 finale the mastermind could of put a different Rj to talk to patrick in order to fool patrick and us he mentioned the name of a street in the area where it took place...therefore we tought Rj was in oneplace when in reality he/she could've been in front of us and next to patrick the whole time...i'm willing to bet 2 horses.5 cows and a chicken that theresa lisbon is the mastermind behind the organization called  Red John.