These serial killer conundrums continue to baffle authorities and amateur sleuths the world over. Welcome to WatchMojo, and today we're counting down our picks for the most unsettling mysteries involving serial killers. Our countdown of unsolved serial killer mysteries includes The West Mesa Bone Collector, Jack the Ripper, The Alphabet Killer, and more! read more...
Top 10 Unsolved Serial Killer Mysteries
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VOICE OVER: Rebecca Brayton
