With Red John managing to get into Janes head to a) kill someone from his childhood that no-one else knew about, plus b) know who Janes seven suspects are can only mean that Red John must be Patrick Jane himself.
With Red John managing to get into Janes head to a) kill someone from his childhood that no-one else knew about, plus b) know who Janes seven suspects are can only mean that Red John must be Patrick Jane himself.