Nov 25, 2025 · 44m
Gregory Green hid his past murder of his first wife and unborn baby, then in 2016 killed his second wife's four children, two by gas and two by gun, repeating his deadly violence.
World's Most Evil Killers
World’s Most Evil Killers delves into the gripping real-life stories of the world’s most terrifying and prolific killers. From Fred and Rose West to Ed Gein – The Clown Killer – and even to The Milwaukee Cannibal. Each episode focuses on one notorious killer and features authentic first-hand accounts of their behavior, from detectives who ran the case, journalists who reported on the stories, relatives, and at times survivors, alongside series experts who provide analysis. These criminologists, crime journalists and psychologists examine how the infamous killers made headlines both nationally and internationally and why they still continue to evoke fear and fascination in the public eye.
Season 10 Episodes
Browse every episode and jump into details.
Dec 2, 2025 · 46m
Benjamin killed 11 women in Detroit, Michigan, in the space of seven months, making him one of the prolific serial killers in American history.
Dec 9, 2025
When two couples are murdered, years apart, the crimes don't look connected. Detectives link Edward and his life as a serial killer come to light.
Dec 16, 2025
The murder and rape of a Vietnamese immigrant in 2007, and how 25-year-old Kenneth Jackson's loose lips led police to uncover his identity as the killer
Dec 23, 2025
In May 1992, Leslie Allen Williams was arrested for assault. Once in custody, she confessed to the murders of four teenage girls
Season 10 FAQ
Quick answers about this season's release timeline and episode lineup.
When did World's Most Evil Killers Season 10 premiere?
World's Most Evil Killers Season 10 premiered on November 25, 2025.
How many episodes are in World's Most Evil Killers Season 10?
World's Most Evil Killers Season 10 has 5 episodes.
What is the first episode of World's Most Evil Killers Season 10?
The season opens with Season 10 Episode 1, "Gregory Green". It aired on November 25, 2025.
Go to Season 10 Episode 1