How did Joker kill Robin?

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Tags

1. #robin
2. #personal
3. #keeps
4. #beating
5. #jason
6. #costume
7. #comics
8. #death
9. #reminder
10. #display
11. #crowbar
12. #failure
13. #joker
14. #kills
15. #batman
16. #protect
17. #batcave