On June 25th 1876 George Armstrong Custer and his command were wiped out, an incident that shocked America, in its centenary year. Many questions about that day still remain unanswered. Why did Custer lose a battle that he should have won easily? Why did he fail to support his two commanders after making that support an integral part of the plan? Why did the Indians stand and fight for the first time in the war on the Plains, instead of retreating and fighting a rear guard action? Why did the most aggressive cavalry officer in the US army fail to make any significant attack against the Indians? Who killed Custer? Why was Custer's body alone spared mutilation? There were eyewitnesses that can answer the questions, Indians who took part in the battle, Custer's Crow scouts, and soldiers who survived. They answer the questions, with a clarity that historian could equal, and they answer it here.