High Quality Content by WIKIPEDIA articles! Russell Charles Means (born November 10, 1939) is an Oglala Sioux activist for the rights of Native American people. He became a prominent member of the American Indian Movement (AIM) after joining the organisation in 1968, and helped organize notable events that attracted national and international media coverage. The organization split in 1993, in part over the 1975 murder of Anna Mae Aquash, the leading woman activist in AIM.