Joseph Medicine Crow, a renowned Native American chief and historian, died on Sunday at the age of 102.
Medicine Crow was the last living war chief of Montana's Crow tribe, a distinction he earned by accomplishing four traditional war tasks while serving in the US Army during World War II.
With his death, the US loses an invaluable historical resource - Medicine Crow was the last link to the famous Battle of Little Bighorn, also known as Custer's Last Stand.
In 2009, he was awarded the Medal of Freedom, and continued to speak on Crow history until his death.
Here's Medicine Crow's unbelievable story: