For whatever reason, hundreds of people are convinced they know who D.B. Cooper was—or themselves admitted to being the most recognized hijacker in the world. Maybe it’s the extraordinary circumstantial evidence. Maybe it’s the desperate need for an answer. Maybe it’s a secret wish to make a difference in the world. But sometimes, no matter how hard we wish, no matter how hard we believe, we just can’t make something true. Today, the FBI has DNA from Cooper’s J.C. Penney clip-on tie that he left on the jet and partial fingerprints from the cocktail glasses he drank from while in flight. They can now quickly confirm or eliminate suspects.