Osage Indian murders

The Osage Indian murders was a serial killing event that took place in Osage County, Oklahoma, United States, during the 1910s–1930s. Newspapers described the increasing number of unsolved murders and deaths among young adults of the Osage Nation as the "Reign of Terror". Most took place between 1921 and 1926. At least 60 wealthy, full-blood Osage persons were reported killed from 1918 to 1931. Newer investigations indicate that other suspicious deaths during this time could have been misreported or covered-up murders, including those of individuals who were heirs to future fortunes. Further research has shown that the death toll may have been in the hundreds.

The tribe had retained mineral rights to its reservation. Each tribal member had what were known as headrights to the mineral rights on communal land. When valuable oil was found on their land and leases were sold for oil production, each member with headrights was paid a share of the lucrative annual royalties for leases by oil companies. In 1906 and subsequent years, US Congress passed a series of laws, ostensibly intended to help the Osage retain wealth, that created a system of guardianship for "minors and incompetents", as determined by and under the jurisdiction of Oklahoma's local county probate courts. The Oklahoma courts routinely found Native Americans to be incompetent without considering mental capacity. For example, a guardian was appointed for one Indian woman on the basis that her savings suggested a lack of spending which was evidence that she did not understand the value of money. Many guardians used their appointment to gain control over the ward's wealth for their own personal benefit. During this period, numerous white men married Osage women to become guardians of their estate.