This is terrible news. Since the officials are basically announcing it as an air disaster, my condolences to the families and people involved.
I can't imagine falling out of the sky from 35,000 feet. Gives me the shivers just thinking about it. Whatever happened, I hope it was swift.
EDIT: So I just read the link to the article Jolinar provided... did it take them awhile to mobilize a search? Did they not start searching until after the plane was supposed to have landed in Paris? I'm not sure the relevance of the discussion about Brazil's terrible air traffic control towards the end of the article... but it's sort of confusing.