Three years ago this week 10 gunmen lay siege to the city of Mumbai. They arrived by boat from Karachi, Pakistan and for for three days, they launched a series of attacks on two 5-star hotels, a train station and a small Jewish hostel. A total of 166 people were killed, and more than 300 were injured. The mastermind behind the attacks, called India's 9/11, was an American citizen named David Headley, who spent more than two years mapping out targets and creating a plan for the attacks.
None of the gunmen had been to Mumbai before, but Headley lived there. He even honeymooned at one of the targets, the luxury Taj Hotel. Headley is the subject of new "Frontline" documentary called "A Perfect Terrorist."
The documentary is a joint work of PBS and the investigative site ProPublica. Sebastian Rotella, senior reporter at ProPublica and Tom Jennings, producer of "A Perfect Terrorist," tell the story of David Headley, the man behind the Mumbai attacks.