These serial killers didn't do it alone. Welcome to WatchMojo, and today we’ll be looking at the deadliest duos, be they romantic couples, blood relatives, or simply friends, who spread terror in their corners of the world and together claimed multiple lives. Our countdown of serial killers who killed together includes Paul Bernardo & Karla Homolka, Charles Starkweather & Caril Ann Fugate, Fred & Rose West, and more! Which of these cases terrified you the most? Let us know in the comments 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
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