David Headley, the American-Pakistani also known as Daood Gilani, lived a double life. One day he would be strolling through Central Park in his tailored Armani suit as a true New Yorker, and the next he would browse in the bazaar in Lahore wearing traditional Pakistani clothes. One day he would drink champagne at the most extravagant clubs; on another he would prostrate himself in prayer in remote Pakistan and pledge fidelity to Allah.Born in 1960, the son of an American mother and Pakistani father, with one blue eye and one brown, Headley grew up between East and West. He was attracted to both worlds, even working as an informant for the US government, until one day he found he had to choose between his place of his birth and a radical form of Islam preaching global jihad. This is the disturbing story of the mastermind behind the 2008 attack in Mumbai that killed 166 people—who two months later flew to Copenhagen to plan another act of terror with the help of Al-Qaeda sleeper cells in Europe. Veteran journalist Kaare Sørensen has reconstructed his movements and planning in a tense feat of reportage. His account, which reveals emails by Headley accessed from a chatroom cache of 9,000, offers unprecedented insight into the mind of the terrorist.