Hillary was a Senator and voted for some of those wars. Then as Secretary of State she pushed for and advocated for those things. There is also some indication she likely benefited from it. Also what happened with Benghazi with the leaks showing the ambassador tried to reach her about 100 times before his death, and she even had an email conversation with others before that death rather than responding to the ambassador.

Yet she has been involved a different levels in politics since 1974 and the amount of corruption is staggering. As to the mysterious deaths of people investigating her and Bill. You could say coincidence, but when the cases near 100 cases it starts to be unlikely to be coincidental.