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Unsolved Mysteries premiered in the late 80's and people became obsessed with the stories it told of murder, missing persons, and more. Though many of the cases featured are still unsolved, the co-creators revealed which ones keep them up at night.
MentalFloss spoke with John Cosgrove and Terry Dunn Meurer and they revealed that the cases that stuck with them the most include:
- The 1996 murder of Tupac Shakur
- The three men who disappeared from Alcatraz in 1962
- The D.B. Cooper plane hijacking in 1971
- The 1981 disappearance of Cynthia Anderson
See the full list and read about all 10 mysteries on MentalFloss.com.