Nick Cave provides narration at the beginning of Prophet's Prey, which is fitting considering Cave has made a living singing about fictional characters like the unfortunately real Warren Jeffs. Here's The Mercy Seat: www.youtube.com/watch?v=t6p5nw6zZig .

This documentary covers a fascinating subject, but the delivery is rather dry. There's a lot of dates and times, and other such small details like that, and I had trouble keeping all of that in my head.