I think the key factors in finding out who RJ is, is his influence. The only people with so much influence are Gale bertram and Bret stiles. Next we need motive. What makes a guy snap and start killing people for no reason? That depends on his past..........We dont know much about their pasts but Visualize is not a good organization.Red john probably was a member there and knows how to brain-wash people by being "friends" with them. This is all very confusing and i hope there is a good explanation for all these clues................provided that these clues aren't misleading. For all we know it could be jane's alter ego.