as possible for an urgent meeting. Vaughan complied, and the two men met that night. Bigheart had said he had suspicions about who was behind the murders and had access to incriminating documents that would prove his claims. Vaughan boarded a train that night to return to Pawhuska, but turned up missing the next morning when the Pullman porter went to awaken him; his berth on the train had not been used. Vaughan's body was later found with his skull crushed beside the railroad tracks near Pershing, about five miles south of Pawhuska. Bigheart died at the hospital that same morning. Thirteen other deaths of full-blooded Osage men and women, who had guardians appointed by the courts, were reported between 1921 and 1923. By 1925, at least sixty wealthy Osage had died and their land had been inherited or deeded to their guardians, who were local white lawyers and businessmen. The Bureau of Investigation (BOI), the preceding agency to the Federal Bureau of Investigation (FBI), found a low-level market in contract killers to kill the Osage for their wealth. In 1995, the writer Robert Allen Warrior wrote about walking through an Osage cemetery and seeing "the inordinate number of young people who died during that time." In 1925, Osage tribal elders, with the help of local law officer James Monroe Pyle, sought assistance from the BOI when local and state officials could not solve the rising number of murders. Pyle presented his evidence of murder and conspiracy and requested an investigation. The BOI sent Tom White to lead an investigation. Because of the large number of leads and the perception that the police were corrupt, White decided he would be the public face of the investigation while most of the agents would work undercover. The other agents recruited were: a former New Mexico sheriff; a former Texas Ranger; John Burger, who had worked on the previous investigation; Frank Smith; and John Wren, an American Indian of the Ute Nation who had previously been a spy for the Mexican revolutionaries. Investigation The Osage Tribal Council suspected that Hale was responsible for many of the deaths. The Commissioner of Indian Affairs in the Department of the Interior sent four agents to act as undercover investigators. Working for two years, the agents discovered a crime ring led by Hale, known in Osage County as the "King of the Osage Hills". Hale and his