I think Red John is more than one person(Stiles/Haffner or Partridge/Kirkland)  or a group of people(a sub-cult within Visulize)        mark my words one of the FBI team is a RJ disciple      I don't believe RJ would have the BA tattoo  that would be idiotic              I've always suspected Van Pelt of being a RJ disciple and Visulize member