Peter Matthiessen

In the Spirit of Crazy Horse by Peter Matthiessen tells "The story of Leonard Peltier and the FBI's war on the American Indian Movement." Peltier was convicted of murder for the 1975 killing of two FBI agents after a trial which, the author alleges, involved government misconduct. The book portrays the violent turmoil on the Pine Ridge Indian Reservation during that time, including the 1973 'Wounded Knee Incident'. 

Matthiessen (1927-2014) was an American novelist, naturalist, wilderness writer, zen teacher and CIA agent. He also wrote The Snow Leopard (1978). 

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