A small detachment of soldiers entered a large Sioux encampment to arrest a man accused of taking a migrant's cow, although such matters by treaty were to be handled by the US Indian Agent. After one of the soldiers shot Chief Conquering Bear and killed him, the Brulé Lakotas returned fire and killed a total of 29 soldiers, Lieutenant John Grattan, and a civilian interpreter. The massacre, as it was called by the American press, is considered an early, significant event in the Plains Indian Wars.