#20: Lee Harvey Oswald Was Identified as the Lone Gunman
Within hours of the shooting, authorities arrested Lee Harvey Oswald, a 24-year-old former Marine who had defected to the Soviet Union and returned to the U.S. under suspicion. He was charged with assassinating President Kennedy after a rifle with his fingerprints was found in the Texas School Book Depository.

Oswald denied involvement, claiming he was “a patsy,” but the evidence against him mounted quickly. Before he could stand trial, nightclub owner Jack Ruby shot and killed him on live television. His death fueled decades of conspiracy theories, ensuring the mystery of Dallas would never fully fade.
