US Secretary of State Hillary Clinton expressing her grief over the untimely demise of Richard C. Holbrooke, the Obama administration's special representative for Afghanistan and Pakistan since 2009, said America has lost one of its fiercest champions and most dedicated public servants. "Tonight America has lost one of its fiercest champions and most dedicated public servants. Richard Holbrooke served the country he loved for nearly half a century, representing the United States in far-flung war-zones and high-level peace talks, always with distinctive brilliance and unmatched determination. He was one of a kind -- a true statesman -- and that makes his passing all the more painful," said Clinton.