Marilyn Monroe was found dead in her home in 1962 and her death was ruled a probable suicide by authorities. The 36-year-old actress had a history of substance abuse and mental illness and her body was found surrounded by pills, but conspiracy theories about her death have developed ever since her death. In almost all conspiracy theories about her death, Monroe's relationship with the Kennedy family is a key factor. First there were rumors that Monroe was sleeping with President John F. Kennedy and then there were rumors that she was sleeping with his younger brother Robert Kennedy as well. Many theories posit Robert as her murderer, while others say it was the CIA or the mafia. The most absurd speculation has to be that she was killed because she was going to reveal the truth about UFOs.
