Life is tough and then you Die

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Across
  1. 2. famous killer
  2. 6. pipe, fertilizer
  3. 7. poor baby
  4. 9. "pointed gun"..Move over!
  5. 11. famous killer
  6. 13. Do what I say or else! No questions asked!
  7. 15. the main theme of this puzzle
  8. 17. forget the zombies, I'm worried about the people!
  9. 18. I can't take it any more
Down
  1. 1. it's all fun and games until someone gets poked
  2. 3. i didn't mean to!
  3. 4. we can do without your kind!
  4. 5. How did this happen to me, I'm not a child?
  5. 8. stick 'em up
  6. 10. kills the most teens
  7. 12. korean, I, II,
  8. 14. famous killer
  9. 16. it's hot in here