River of Darkness — James Grady

Once he was a legend in the Army's Green Berets. Then he brought his skills to the CIA. Soon Jud Stuart became one of the company's top spies, a master agent living in a dark underworld--sometimes in cover so deep his own superiors couldn't track his sanction. But now the superpower rivalry that had shaped Jud's life has ended. Now he's left alone with his ghosts and his government's most closely guarded secrets. Now someone has decided that it's Jud Stuart's turn to die.