20 Most Terrifying and Disturbing Serial Killers

These are the worst serial killers of all time. For this list, we’ll be looking at the creepiest multiple-fatality felons that kept us up late at night due to their terrible actions and unsettling behavior. Our countdown includes Dennis Rader, Albert Fish, Jeffrey Dahmer, H.H. Holmes, and more. Which of these appalls you the most? Let us know below. Watch more serial killer videos here: 10 Serial Killers That Are STILL ACTIVE: https://youtu.be/HEKmC0y4nqk 20 Cold Cases That Were Finally Solved: https://youtu.be/aFlo8G7NpsM Top 20 Serial Killers Who Were Never Caught: https://youtu.be/S8eo4-URLpA Become a channel member to get access to special perks: https://www.youtube.com/channel/UCaWd5_7JhbQBe4dknZhsHJg/join Challenge friends and family on our multiplayer Trivia! https://www.watchmojo.com/play/id/63156 Have your idea become a video! https://wmojo.com/suggest Subscribe for more great content! https://wmojo.com/watchmojo-subscribe Visit our shop for awesome merch! https://shop.watchmojo.com/ Your trusted authority for Top 10 lists, reviews, tips and tricks, biographies, origins, and entertainment news #SerialKillers #Killers #Disturbing #Terrifying #Scariest #Crime #Criminal #Worst #Horror #JeffreyDahmer