Khalid Al-Jhani was, at one time, an explosives trainer for Osama Bin Laden in Afghanistan. He was later captured and held in Guantanamo for over four years. He was then returned to Saudi Arabia where he passed through a rehab programme that the Saudis created a few years ago. Today he leads an almost normal life.
This is part of a series of films made for the UN looking at how and why people leave terror groups.