"Tumultuous" is indeed a good word to use in this case.
I was reading a book last night, listening to a German radio station via the internet. It was 00h00 and I was just about to go to bed but the morning news came on the radio and the top story was announced - "Osama bin Laden ist tot". Whoa. That changed everything and I ended up surfing, watching and listening to a lot of different news channels last night.
But a few hours after the actual announcement of bin Laden's demise I wonder still, how I feel. I think I'm a bit happy that they actually got that *&#@ who killed indiscriminately and who twisted religion to his own end.
On the whole though, I think back to that day almost 10 years ago. It was of course a day that started so brightly and ended so darkly. And I think, with a twinge of sadness but with a stronger feeling of finality that that day is now truly over. A chapter has closed and we can all move on now.
And that I think, makes for the beginnings of a good day.