The Mystery of D.B. Cooper

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Across
  1. 2. A person who has committed a crime.
  2. 3. Showing good manners and respect for others.
  3. 5. A piece of evidence that helps solve a problem or mystery.
  4. 9. A natural area that is uncultivated and uninhabited.
  5. 10. An idea to explain something, often based on evidence.
  6. 13. Disappeared completely without explanation.
  7. 17. A secret plan by a group to do something unlawful or harmful.
  8. 18. The qualities that make a person who they are.
  9. 20. A journey through the air in an aircraft.
Down
  1. 1. To get away from a place or situation.
  2. 4. A story or person famous for doing something extraordinary.
  3. 6. An exciting or unusual experience.
  4. 7. A device used to slow a fall from the sky.
  5. 8. Someone believed to be involved in a crime.
  6. 11. The money demanded for the release of something or someone.
  7. 12. Facts or information used to prove something.
  8. 14. A person who takes control of a plane, car, or other vehicle by force or threat.
  9. 15. Happening in a series or sequence.
  10. 16. Something that is difficult or impossible to explain or understand.
  11. 19. The act of stealing something.