To understand the driving force behind Patrick Jane, the title character in the hit drama The Mentalist, one need look no further than the brutal murderer who has plagued his nightmares since the series' first episode. On Monday, Oct. 22, TNT is going to take viewers on a journey through those nightmares with The Mentalist: The Hunt for Red John, an all-day marathon of episodes centering on the serial killer whose long line of victims includes Jane's own family. "Our marathon of Red John episodes of The Mentalist provides fans with a great opportunity to see the story arc as it has played out over four seasons," said Phil Oppenheim, senior vice president of programming for TNT and TBS. "The Hunt for Red John marathon also gives viewers unfamiliar with The Mentalist the chance to get in on the show from the very beginning." TNT's marathon will begin with the pilot episode of The Mentalist, which introduces viewers to Patrick Jane (series star Simon