S4.E1 ∙ Todd Kohlhepp Mon, May 25, 2020 A chilling profile of the vicious serial killer who claimed the lives of at least seven innocent people between 2003 and 2016. 6.7 /10
S4.E2 ∙ David Berkowitz Mon, Jun 01, 2020 A profile of the serial killer who found himself at the center of New York's biggest manhunt after a vicious shooting spree that left six dead. 7 /10
S4.E3 ∙ Robert Ben Rhoades Mon, Jun 08, 2020 A profile of The Truck Stop Killer, who targeted hitchhikers and truck stop sex workers in a horrific string of crimes spanning 15 years 6.4 /10
S4.E4 ∙ Bill Suff Mon, Jun 15, 2020 A profile of the murderer known to some as the Riverside County Killer, who sits on death row after being convicted for the slaying of 12 women. 6.5 /10
S4.E5 ∙ Christopher Hightower Mon, Jun 22, 2020 A profile of the Rhode Island family man and Sunday school teacher, who also turned out to be a cold-blooded triple murderer. 6.5 /10
S4.E6 ∙ Sante & Kenneth Kimes Mon, Jun 29, 2020 An investigation into the murderous mother-and-son duo who killed three people in the late-90s, including an elderly landlady in a greed-fueled ploy. 6.8 /10
S4.E7 ∙ Richard Chase - The Vampire of Sacramento Mon, Jul 06, 2020 A profile of the serial killer who took the lives of six victims in one month, known to some as The Vampire Killer due to his penchant for cannibalism. 7.3 /10
S4.E8 ∙ Angel Maturino Resendiz Mon, Jul 13, 2020 Known as The Railroad Killer, Angel Resendiz killed at least 9 people, and is thought that he have taken more lives. He was executed in 2006. 6.2 /10
S4.E9 ∙ The Hillside Stranglers - Kenneth Bianchi and Angelo Buono Mon, Jul 20, 2020 A look at the lives and crimes of a duo of cousins who, together, took the lives of 10 girls and women aged between 12 and 28. 7.1 /10
S4.E10 ∙ Daniel Lee Siebert Mon, Jul 27, 2020 A look at the life of the American serial killer, who was convicted of five murders but confessed to many more. 6.5 /10