so...this topic is neither unmanned nor spaceflight...ahem...
Anyway - sorry to see the end of an intrepid explorer, but from what I hear about the crash, I hope it was quick and painless, rather than some of the harrowing escapades on his other journeys. I'm glad he died doing what he loved doing. Too bad it wasn't pushing the envelope this time.
Although, it has been pointed out that you can push the envelope all you want, but it will always remain stationery.