''RIA Novosti quoted Irina Tyurina, of the Russian Union of Travel Industry, as saying the incident was rare and that the three were highly skilled divers who sought to set a record by diving to a depth of 90 meters using an ordinary air mixture''.
I cant believe anyone would want dive to 90 meters on air, seems absolutely crazy. You would be narked off your face by the time your half way down, and Oxygen toxicity would of probably make you pass out not long after that. I would say that is what killed these divers, they drowned from toxicity poisoning.
I would also debate that the three were in fact highly skilled, I would of thought that 2 of the 3 would of dived on Trimix, so that they could of rescued the 3rd diver on his attempt to set a deep dive record on air.
It's a sure way to become fish food, hopefully it will at least make people think before wanting to push the boundaries with this kind of diving.
Glow Below