IMDB did a huge mistake showing the list of actors in the red john episode (8) Now this is the link of the ep8 i.imgur.com/NPWfGWZ.png as you can see there's Gale and Brett, So who's red john Gale Bertram or Brett Partridge? Gale mad a phone call to someone telling him that Jane is getting close & Patridge faked his death one the first episode. During the meeting there was a bomb planted by Red John himself to kill Jane and his suspects so there's no way that Gale as RJ planted that bomb cuz he was there with them and that leaves us one choice and one person : Brett Partridge. And i'm sure that Gale is the only one who knows Red John & he helped him to fake his death, leak Jane investigations and kill people.