How did Loki kill Coulson?

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Tags

1. #extensive
2. #hands
3. #surgeries
4. #precise
5. #indeed
6. #coulson
7. #surgery
8. #after
9. #endured
10. #turns
11. #agent
12. #moved
13. #seven
14. #ungodly
15. #seconds
16. #avengers
17. #where
18. #trauma
19. #earth
20. #heaven