How did joker die in Arkham Knight?

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Tags

1. #toxic
2. #batman
3. #where
4. #infected
5. #really
6. #clown
7. #joker
8. #knight
9. #carrying
10. #encounter
11. #hallucination
12. #consequence
13. #arkham
14. #conclusion
15. #rocksteady
16. #actually
17. #however
18. #blood
19. #sample