My favorite serial killer will have a new, deadlier nemesis is his upcoming season.
Meet Walter Simmons
"Simmons is described as an unassuming, mild-mannered suburbanite who has been living a duel life as one of America's most prolific and deadliest serial killers, dubbed the 'Trinity Killer' because of his proclivity to kill in threes. He relocates to Miami after being tracked by F.B.I. Special Agent Frank Lundy (Keith Carradine) where Dexter Morgan is brought on to assist in the investigation and becomes fascinated with Trinity's skills."
John Lithgow is playing this character, so it should be superb.