I Killed Geronimo is a 1950 American Western directed by John Hoffman and starring James Ellison, Virginia Herrick and Chief Thundercloud in the role of the Chiricahua Apache leader Geronimo. It is based on the fictional murder of Geronimo, who in reality died of pneumonia at the age of 79 after a fall from his horse in February 1909 while still a prisoner of the United States at Fort Sill, Oklahoma.