Urooj Khan, with his winning lottery ticket. Not long after this photo was taken, he was dead. /AP hide caption toggle caption /AP The Two-Way Mystery: How Did Million Dollar Lottery Winner End Up Dead From Cyanide? January 8, 2013 In Chicago last summer, Urooj Khan jumped for joy when he realized he had a winning ticket in the Illinois later. A month later, one day after his check was issued, Khan was dead. Authorities recently figured out that the cause was a lethal dose of cyanide. Now they're investigating.