Its easy to place blame and act on emotion. I think we all need to take a step back take a deep breath, regroup and be close to friends and family and give the people we know that have been affected by this, the support they will need.
Friends and family are still awaiting word on their loved ones. The last thing we need is blame placed. This is a sport that is and can be risky, just like back country skiing, hiking and general back country use in the winter season.
We all are responsible for ourselves, we all make the conscious decision to be out there and have no one to blame but ourselves. This sport is one where you need to make some life changing decisions and be prepared to accept the consequences, if you can't, then you should not be out there.
Lets NOT make this into a "its all his fault". Lets get the family and friends taken care of !