That and the fact that the pilot couldn't risk saying "No!" to his passenger.
This alleges to be the first photo released of the crash site:
You can't make out much detail but to my eye it looks to be a small, fairly contained crash site on the side of a pretty steep mountain slope. My gut hunch is he was flying fat, dumb and happy at cruise speed and ran smack into cumulo-granite.
I knew one of the usual suspects would post this, so I figure I'd beat 'em to it:
The odd thing is there were 3 choppers and only the one with the butcher crashed. The other two completed the journey without incident. Things that make one go hmmm.