San Jose Mercury News: Dan Fredinburg, a Google X privacy executive, died Saturday in the 7.8 magnitude earthquake that struck Nepal, triggering an avalanche on Mt. Everest, where he was a member of a climbing party. The reaction to the 33-year-old Google executive’s death from Silicon Valley, from friends, colleagues and mountain climbing partners was another kind of avalanche — one of deep grief over the loss of a champion of causes ranging from the environment to online privacy.