SASless,
About 10 to 15 yrs. ago I remember an incident that was mentioned a lot on TV during which a helicopter decapitaded 2 or 3 people (I think they were kids) during the filming of "the twilight zone" I remember the helicopter was flying down the river and hit the people during a turn as they were standing on the river bank, I don't know much else but I remember it was on TV for a while.
So for me its not the first time I hear of something like this.