Just looking a the trees you can see there is no movement on them to suggest any downdraughting, no sign of cloud tendrils drifting down the hill (another good clue to downdraughts) and no obvious large areas of shade and sun (enough to cause a katabatic wind) - just a poorly flown approach......and the dust post-impact would suggest a somewhat downwind one...as mentioned by RVDT and jellycopter earlier in the thread