In 1998, former Russian intelligence officer Alexander "Sasha" Litvinenko denounced the FSB for ordering him to assassinate Boris Berezovsky. After a dramatic escape to London, he spent six years investigating a widening series of scandals and denounced his former employers for their dirty deeds. His assassination in November 2006--poisoned by the rare radioactive element polonium--caused an international sensation. The full story of his life, told by his best friend and widow, opens a window into the dark heart of the Putin Kremlin. Litvinenko dedicated his life to exposing this truth. It took his diabolical murder for the world to listen.