According to the FBI, at any given moment, there are around 25 to 50 active serial killers in the US.
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Scary Facts
HorrorDid you know that cats are able to see spirits? Or that the universe could just explode in a few billion years? Those are just a few scary facts. In this book, I'll be telling you scary facts about life, death, Earth, space, and much more. So turn o...
