In May 2006, Negrete and his Brazilian teammate, Rodrigo Raineri, were attempting to climb Mount Everest following the north ridge route without the aid of oxygen. On May 16, 2006, Negrete received bad news on his arrival at Camp II. First, while making a summit bid, David Sharp, a British member of an expedition outfitted by Asian Trekking, the same outfitter used by the Brazilian team, had died on the mountain. In addition, Malaysian climber Ravi Chandran, also outfitted by Asian Trekking, was suffering from frostbite in two fingers and needed to descend to Base Camp for medical treatment. Finally, someone had looted and emptied a cache containing gear and food left by the Brazilians at Camp II. Negrete said All these events have affected me deeply - I even considered calling the attempt off. However, Ravi told me to reach the summit for him.