Detective story (Mathis C.)

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Across
  1. 3. a motives for a crime
  2. 5. it's left by a murderer on different objects and help the investigation
  3. 8. a liquid allowing to kill somebody
  4. 9. the person who sudden the crime
  5. 10. a book or a film that tells a very exciting story
  6. 11. a person who saw something about a crime
Down
  1. 1. weapon use for kill somebody from a distance
  2. 2. a trace left by the murderer on the crime scene
  3. 4. the molecule inside cells that contains genetic information
  4. 6. a edged weapon
  5. 7. name of a famous Belgian detective