Dead or on the lamb?

[guyfriday]

I call crap on that "Dry Drowning" or better known as Asphyxiation. My evidence is this story:
Man Found Alive at Bottom of the Sea 3 Days After Boat Sank: 'Total Shock' - Newsweek

On May 23, it will be 10 years since a man named Harrison Okene survived three days at the bottom of the sea in the wreck of a ship.
 
The 29-year-old had been trapped in the freezing cold and pitch-black darkness 100 feet beneath the ocean surface for 60 hours. He is believed to have been just hours from death when he was found.
 
"It was very unexpected and a total shock to find someone alive after the vessel sank days before," Nico van Heerden, the diver who found Okene, told Newsweek. "He was not the first person we came across, though. Before we found him, we found and recovered the bodies of three of his colleagues that perished during the incident. Very tragic indeed."

So, this guy was in a small, very small, cabin for three days trapped in an air pocket and was still alive, but Lynch and friends were in much larger cabins and died due to lack of oxygen in less than a day? Were Lynch and friends gassed before the boat went down? 

Every time new "evidence" comes out the question of them being dead before the boat went under still lingers. I mean what next, they were unresponsive when the boat was shaking around for 9 minutes due to too much oxygen?