In January 2005, Dave Shaw was determined to retrieve Deon Dreyer’s body. Dreyer had been dead for ten years, lost 270 meters (885 ft) into Bushman’s Hole in South Africa, but Dave was going to bring his bones back to his family.
He found Deon’s body without a problem and hooked a line to it so he could bring it up safely. When he tried to cover the body with a body bag, though, the head snapped free. The body started to float away, and catching it turned into a vicious struggle.
Dave’s breath sped up. Soon, he was breathing faster than his rebreather could handle. The carbon dioxide it was supposed to filter out was coming back into his lungs, making him confused. His efforts to get Deon into the bag were getting wild and careless, and he was staying at it for too long.
After five minutes, Dave gave up and started swimming up, but his light got snagged on the cave line he’d attached to Deon’s body. Dave tried to get free, but Deon’s body was dragging him down. He panicked, his breath faster than ever. Dave was choking on his own exhalations. Dave passed out and died under the water, next to the body he’d tried to save.
Video of this:
https://www.youtube.com/watch?v=mF4iFJ-G74o 
