A portrait of Spotted Elk, leader of the Lakota Sioux at Wounded Knee, by C M Bell, from the Library of Congress Prints and Photographs Division, Washington. Getty 
A portrait of Spotted Elk, leader of the Lakota Sioux at Wounded Knee, by C M Bell, from the Library of Congress Prints and Photographs Division, Washington. Getty 

Review: 'The Heartbeat of ­Wounded Knee' by David Treuer