John Brennan Crutchley was a bizarre example, even for a serial killer! He used syringes and surgical tubing to drain his victim’s blood into a mason jar so he could drink it. More than 30 women went missing before anyone guessed this engineer with top-secret government clearance was not what he seemed. Nobody suspected him for years.Then, he finally made a mistake. One of his victims managed to escape after a horrifying "date" with him.And this uncovered the most bizarre chain of events you've ever heard.Today, we're wrapping up one of the most twisted cases in history. This is the case of John Crutchley, aka The Vampire Rapist.

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