The Devil Came on Horseback (2007)

"A witness to evil. A force for peace. An unbelievable true story."

While serving with the African Union, former Marine Capt. Brian Steidle documents the brutal ethnic cleansing occuring in Darfur. Determined that the Western public should know about the atrocities he is witnessing, Steidle contacts New York Times reporter Nicholas Kristof, who publishes some of Steidle's photographic evidence.