Unreported World investigates how one influential preacher in Kenya could have led hundreds of men, women and children to their deaths. Symeon Brown tracks down the survivors and the families searching for loved ones to find out if this was mass suicide, or mass murder.

So far 429 bodies have been exhumed from graves in Shakahola forest where Pastor Paul Mackenzies followers are believed to have starved to death. The leader of the so-called death cult is said to have promised his followers protection from the coming apocalypse. Mackenzie denies any wrongdoing.

Meanwhile another church, Rainbow Ministries, is facing a crackdown for cult-like behaviour. But where is the line between faith and extremism?