How did M die in Skyfall?

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Tags

1. #dench
2. #london
3. #films
4. #lunch
5. #cried
6. #seven
7. #skyfall
8. #laughed
9. #being
10. #demise
11. #tears
12. #veteran
13. #played
14. #killed
15. #producers
16. #chief
17. #character
18. #revealed
19. #actress
20. #through