There's an article about a Russian climber's death on 05/22 on risk.ru (in Russian). Not sure if it's the same incident as reported above, but this is what risk.ru say:
On May 21st a team of 20 people attempted to summit, all using oxygen. 16 of them did summit, 4 others got to about 8,600-8,700 meters. Everybody made it down to the 7,800 camp that day in good weather and good spirits. The next day (May 22) as they were preparing to descend, one of them - a 54-year-old man (who was among the non-summiteers) felt sick, complained of lack of oxygen and inability to breathe (even though he was using bottled oxygen). Raising the volume of oxygen from 2 to 4 l/min didn't help. A doctor-recommended injection of dexametanose (sp?) didn't help. He died. It was impossible to carry his body all the way down; so the guides and expedition members covered his body in sleeping bags and rocks; then descended to base camp.
This is just one of the tragic incidents; but this one doesn't sound like the one where the climber was left to die just below the summit. It could be a "death from exhaustion"... RIP.
I never know how to write about these things...
Paulina
Vichnaya pam'yat'.