In "Red Dawn," the 100th episode of the Mentalist, a mysterious man--later identified as Robert Kirkland of Homeland Security--sitting in a limo with FBI Regional Director, Alexa Schultz, appeared to have been following Patrick Jane
since Red John murdered his family. In "Red Sails in the Sunset," Bob Kirkland pursued Lorelei Martins, a Red John assistant, who revealed to Patrick Jane that he and Red John are much alike and she wondered how both didn't become best friends since the moment they shook hand. Evidence surfaced suggesting Bob Kirkland--who shook hands with Jane in a previous episode--is Red John. However, Jimmy Gadd, an editor on the Mentalist, confirmed that Bob Kirkland is NOT Red John and that Bob K. is a good guy with a story to be revealed in a future episode.