Daniel Paul " Dan " Fredinburg ( September 8 , 1981 – April 25 , 2015 ) was an American Google executive , climate activist , inventor , explorer , and entrepreneur . He died on April 25 , 2015 , of head injuries incurred in an avalanche at Mount Everest 's South Base Camp triggered by the April 2015 Nepal earthquake
April 2015 Nepal earthquake
April 2015 Nepal earthquake
Dan Fredinburg