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On June 11, 1920 New York City socialite Joseph Elwell was found with a bullet wound to his head in the locked living room of his home. With suicide being ruled out, to this day the killer and the mysterious circumstances surrounding the case remain a mystery.

Sources:

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• https://vocal.media/criminal/the-impossible-murder-of-joseph-bowne-elwell
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• https://www.historicmysteries.com/joseph-bowne-elwell/
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• https://mysteriousuniverse.org/2018/04/real-cases-of-mysterious-murders-in-locked-rooms/
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• The Mysterious Locked Room Murder Of Joe Elwell 1920 \u2013 Strange Unexplained Mysteries (coolinterestingstuff.com)
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