On the fifth season premiere, Jane tries to decipher Red John's connection with Lorelei Martins (guest star EMMANUELLE CHRIQUI) while the CBI team is forced to partner with an FBI squad - including Agent Gabe Mancini (guest star IVAN SERGEI). The death of Red John had been planned since the start of the show. Auf Janes ausdrücklichen Wunsch hin arbeitet er auch beim FBI gemeinsam mit Teresa Lisbon, seiner … TV-14. 'The Mentalist' season 6, episode 7 review: Who is Red John? We … The Mentalist Written by series creator Bruno Heller and directed by longtime director and executive producer Chris Long, the episode marks the conclusion to the series' long-running Red John storyline, which had been developing for the entirety of the series. The Mentalist hasn't worked that way. English [CC] Audio languages. Fire and Brimstone. Then came the much-needed creative resurrection following Red John’s death at the hands of Jane. Red John (episode "He doesn't leave clues. What happens on The Mentalist after Red John is killed? By the end of The Mentalist's Season 5 finale, viewers will finally know Red John's real name.