34°12'36.7"N 117°51'54.0"W seems to be the location.
No signs of wires or poles there but they could have hit the trees.
Otherwise it seems the weather was fine so it could have been a mechanical issue.
Crab, I think your spot on give all the pieces of trees around the helicopter fuselage. Landing area looks large enough but would depend on what trucks and cars were there when they arrived