From history’s first murderer to the most prolific killers of modern times — this 3-hour journey explores how serial killing evolved through the centuries. Discover the twisted psychology, cultural impact, and investigation breakthroughs that defined humanity’s darkest minds in the Dark History of Serial Killers. 00:00 The Green River Killer - Worst American Serial Killer? 10:31 How Serial Killer HH Holmes Got Away With It 23:14 The First Recorded Serial Killer in History 29:58 Could This Be The Deadliest Serial Killer In History of Mankind? 40:18 America's First Serial Killer Family 52:15 The Zodiac Killer's Identity is Finally Revealed 01:03:10 Why Science Has 2 Serial Killers To Thank For Many Anatomy Discoveries 01:17:23 Serial Killer With More Victims Than Any Other Killer in American History 01:31:48 Why Jack The Ripper Was Never Caught 01:45:21 The Pig Farmer - Canada's Most EVIL Serial Killer 02:19:58 Insane Serial Killer Facts You Have to See to Believe 🔔 Don't forget to SUBSCRIBE! 🔔 SUGGEST A TOPIC: 💬 Come chat with me: 🔖 MY SOCIAL PAGES TikTok ► @theinfographicsshow Facebook ► All videos are based on publicly available information unless otherwise noted.