David Coleman Headley, 52, was born Daood Gilani to a Pakistani father and American mother. He changed his name in 2006 to travel more easily to and from India
What was his role in 26/11 attacks?
He conducted meticulous scouting missions that enabled the 10 Pakistani gunmen to enter Mumbai via the sea route and carry out the devastating 26/11 assault that killed 166 people
What has he been convicted for?
Headley was sentenced on 12 counts, including conspiracy to aid the Lashkar-e-Taiba. The maximum sentence was life in prison. He pleaded guilty and cooperated to avoid the death penalty and extradition to India.