Good questions Glennm.
The Yuri's look like they were placed and their bodies pliable. I wouldn't think Yuri Doroshenko would be left in a short shirt by his friends when alive on the way to the ceder, I'm sure they would have shared clothes , so I suspect his top or one of the jumpers was removed. I just don't understand why they didn't take the shirts too.
Intially I thought that the trousers and leggings may have been ripped by going up and down the tree trunk. This might have been the case and then bits were just cut and ripped off for some sort of seating. I still wonder if the did fall into a ravine as a group, got wet in bits of the stream and then HAD to make a fire and take wet clothes off.
Using calories would keep them warm but I don't think it would be possible to move or drag bodies any great distance as the depth of the snow in some places would make it next to impossible.
I also juggle withe the idea that they were trying to melt snow , in their clothes or cut off garment s , like they desperately needed water . I know that sounds strange but what doesn't. If they got a fire started , then that's half the battle, all they needed was wood that was lying on the ground and we have a fallen ceder not far away that would have vertical branches that should be dryish too.
The reason for trying to regain the tent again is because the danger or reason for leaving is gone, daylight , so they can dig out their supplies, poison or toxins gone? There was now no other option? .
With the talk about uranium I got googling and ended up looking at white phosphorus. Looking at uses I saw that it's used in fireworks and distress flares. I'm sure one of the hikers was into making rockets and fireworks, it's quite unstable and let's of toxic smoke.
White phosphorus particles may cause corneal burns and perforation. Exposure to the smoke from burning phosphorus may cause ocular irritation, blepharospasm, photophobia, lacrimation and conjunctivitis?.
It gets as bad when inhaled . Thurst being one . Also, it glows in the dark, whether that's a link to the alleged glowing clothes is a wild leap perhaps . I wonder if they were preparing a fire work, I believe one of the cameras was mounted to a tripod when found ( this could be wrong). Accidental ignition whilst trying to prepare a fire work? Or a distress flare in the tent would be enough to cause harm to lungs , eyes, etc. Cut the tent and look for water?
Also easy enough for a stranger to cut a hole and through one in?