The latest news tonight (Mon) says that Mr Gullberg's body was found at the bottom of a 1500 foot headwall, and that he had taken "a long, slow fall". He was killed by hypothermia, and not by the fall. Since he was unroped, this continues to fit the scenario that he was going for help - but took a bad route down the mountain. The other team members have got ice axes and could presumably have carved out a snow cave. But this is 4 days now without good insulation, and unless they've got a stove and lots of fuel (for making hot drinks) their body energy is at serious risk.

other Pete