It happened to Dr. Nils Antazana who tried summitting with a fraud of a sherpa who misrepresented himself. It cost the doctor his life as his supposed "sherpa" Gustavo Lisi refused to help him. He actually stepped over Dr. Antazana as the doctor was grabbing onto Lisi's leg begging him to help him. Not only did Lisi NOT help him, knowing well that the doctor would die if he didn't. There was another climber, Juan Carlos Gonzalez, who lost 7 of his 10 fingers from frostbite on Everest. Lisi stole a camera Gonzalez had in his jacket. The camera had film in it that documented Gonzalez's summit. Lisi then went back to base camp and sent a picture (no face shown or evidence that it was Lisi, when it actually was Gonzalez) around the world with his supposed picture proving he sumitted the top of the world. It was actually Gonzalez's picture of him at the top.

Ya gotta read Mike's book. It'll shock the shorts off of you!!