The horrific crime shocked a nation. Three young boys, cub scouts, were tied up, murdered and their naked bodies dumped in a drainage ditch. As a Deep South community bayed for justice, attention focused on a group of misfit teenagers, heavy metal fans accused of killing the children in a Satanic ritual. The case became a sensation at a time when a 'Satanic panic' over cults was gripping 1990s America. All three were found guilty. Jason Baldwin, then 16, and Jessie Misskelley, 17, got life sentences. Damien Echols, 18, was put on death row, where he remains. Now evidence, including...