Mark of a Killer(2019)
S4 E4 - The D.C. Sniper
S4 E3 - The Skull Crusher
S4 E2 - The Bayou Strangler
All serial killers commit murder to satisfy their grand fantasies, but the murderers featured in this true-crime docuseries take it one step further, committing heinous acts that allow them to extend their fantasies and relive the excitement of their crimes again and again.
Mark of a Killer - watch online: streaming, buy or rent
Currently you are able to watch "Mark of a Killer" streaming on fuboTV, Peacock Premium, DIRECTV, NBC, OXYGEN or buy it as download on Apple TV, Amazon Video, Vudu, Google Play Movies.