Snowboard and skiers accident.

I was a junior Olympic downhill ski racer, I've skied basically everywhere in US/Canada...
Sometimes runs start as black diamonds or double blacks but end up feeding into lesser slopes where more general folks are skiing. I can't tell if that is what happened here and it doesn't seem like it? Most of the messed up stuff I've witnessed on the slopes is because inexperienced people go/end up in places they should not be. Terrible accident here.