Marilyn Monroe

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One of the world’s very first superstars, Marilyn Monroe shook the world one final time when she was found dead in her Los Angeles home at 36 years old.
Her death was caused by an overdose of barbiturates, and was ruled a suicide.
However, there are theories that there’s much more to this sordid affair than a depressed starlet. (In fact, many friends claim Marilyn seemed in fine spirits before her death.) This involves many conspiracy theories that Marilyn was having extramarital affairs with both former president John F. Kennedy and his brother Robert F. Kennedy.
Some believe that Marilyn was forced to overdose so that she would be forever silenced and prevented from speaking about the affair and any other secrets she may have known.
Elizabeth Short AKA “Black Dahlia”

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Elizabeth Short was an aspiring actress who was gruesomely murdered in 1947 when she was 22 years old. From that point, her life and death were sensationalized due to the graphic nature of the crime and the mystery that surrounds it.
Short was found dead in the Leimert Park neighborhood of Los Angeles, and was cut in half at the waist. After the media dubbed her “The Black Dahlia,” she also came to be known as an “adventuress” who “prowled Hollywood Boulevard” and was murdered by a “sex fiend slaying” in the Los Angeles Times. To this day, her murder remains a mystery.
Jim Morrison

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Doors singer Jim Morrison’s death may seem cut-and-dry, and many have no problem accepting that his death was the result of an overdose on heroin… even though no autopsy was ever performed on him.
However, some facts concerning his death and the subsequent investigation have spurned numerous conspiracy theories. In fact, much like Elvis and Tupac, some believe that Jim Morrison faked his death to get out of the limelight and went on to live a life of total privacy.