Some killers are infamous, but others managed to hide in plain sight for years. Join us as we count down the most terrifying real-life murderers you may have never heard of, from twisted predators and cult leaders to cold-blooded serial killers. This is a grim look at the darkest corners of true crime, where the names may be unfamiliar, but the crimes are unforgettable. Our countdown includes infamous cases of Richard Chase, Dorothea Puente, Robert Berdella, David Berkowitz, and more! Which of these shocking killers disturbed you the most? Let us know in the comments below!

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MsMojo is a leading producer of queen-sized lists and thought-provoking essays on Film, TV, Celebrity, Music, & more. Your trusted authority for ranking and analyzing Pop Culture.

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