David Headley (born Daood Sayed Gilani; 30 August 1960) is a Pakistani-American terrorist and spywho conspired in committing the 2008 Mumbai attacks. He allegedly made multiple trips to Pakistan for the Lakshar-e-Talba, one of the largest terrorist groups in South Asia. He was arrested in 2009 at O'Hare International Aiport in Chicago on his way to Pakistan