When children started disappearing from the streets of Lahore, Pakistan, in 1999, a letter arrived in the lap of Lahore police. “I sexually assaulted 100 children before killing them” — this was the first line of the confessional statement of a man who soon came to be known as Pakistan’s most notorious serial killer, and one that sent Lahore police on its largest manhunt ever. Who was this man? Did he really kill 100 children? What was his story? To find out, tune in to part 1 of the episode on Javed Iqbal.