Who stole a burger?

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Across
  1. 3. Someone who saw something
  2. 6. The person who did something bad
  3. 8. Say something not true
  4. 11. Something you feel with your nose
  5. 12. A person who steals
  6. 14. Proof that shows the truth
  7. 15. Take something without asking
Down
  1. 1. Go away suddenly
  2. 2. Wanting to eat
  3. 4. Not guilty
  4. 5. A person who may have done the crime
  5. 7. Not clean
  6. 9. Something that helps solve the mystery
  7. 10. Put something where nobody can find it
  8. 13. A small piece of food