20 baffling forensic cases that stumped everyone
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The poisoning of Urooj Khan
In 2012, Urooj Khan won a million dollars with a lottery a ticket he purchased at a 7-Eleven near his home in Chicago. But before he had a chance to collect his winnings, he died. It was presumed the 46-year-old had died of natural causes – until the medical examiner discovered that Khan had been poisoned with cyanide. But no one has ever been able to connect the poisoning and anyone with a motive. The case remains unsolved.