On February 27, 1973, 32-year-old Native American Carter Camp led an armed group to seize Wounded Knee in South Dakota. It was announced Wednesday that Camp passed away at age 72 last month. Wounded Knee was the site of the last battle of the American Indian Wars, where as many as 350 Lakota Sioux were massacred by U.S. soldiers. When Camp and his group seized Wounded Knee, they took 11 hostages in what would become a 71-day standoff that ended with two Indians dead and a federal marshal paralyzed. Camp spent three years in prison afterward.