How did Hank from Breaking Bad get paralyzed?

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Tags

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2. #after
3. #goodman
4. #protective
5. #threat
6. #partially
7. #survives
8. #ambush
9. #family
10. #custody
11. #marie
12. #lawyer
13. #against
14. #makes
15. #schrader
16. #paralyzed