My condolences to the family of the deceased, and I hope that the injured recover soon. Very sad to see any accident with injuries or fatalities.
TTB - I think your set of photos are better for understanding what may have happened. There is no suggestion of any wind strength, and the spot-turn seems to have been completed without a problem. I also think that the photos suggest sideways flight, unless we assume that the photographer ran several meters to his left to change the angle on the end of the tent in the background. Tipping the photos to level the horizon does suggest a small rearward component to the flight.
Catching a skid with sideways movement in that direction is most likely not going to end well, regardless of the make. Coincidence that there is another thread running with a Bell catching its left skid during a spirited departure.
http://www.pprune.org/rotorheads/243...ml#post7405850
It does look like low-speed CFIT.