Streaming, rent, or buy Mark of a Killer – Season 4:
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4 Episodes
S4 E1 - The Monster
S4 E2 - The Bayou Strangler
S4 E3 - The Skull Crusher
S4 E4 - The D.C. Sniper
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Cast
Tommy Campbell
Katherine Ramsland
Self - Forensic Psychologist
Rory Callahan-Fitzgerald
Katherine Khatari
Sheryl Anania
Mary Kate Owens
Cindy Brown
Andrew D. Erath
Johnathon Gorman
Joey Kemp
