Vanity Fair reported that Miller assisted William Higinbotham, the head of the Manhattan Project's electronics group, in constructing equipment for the Trinity Test.
[4] Throughout his adult life, Miller was known to be an avid collector of artifacts and often collected items while traveling, sometimes while on Christian mission trips abroad.
[5] Special Agent Tim Carpenter of the FBI Art Crime Team followed up on the tip and Miller gave the officer a voluntary tour of the property.
Miller ultimately cooperated with the investigation and teams of federal agents and scientists erected tents on his property to process the artifacts.
[10] Notably, Miller's collection included over 2,000 human bones from an estimated 500 individuals that were looted from Native American burial grounds.
[10] FBI agents discovered an articulated skeleton in a display case and Miller claimed that it was the remains of Crazy Horse, a famous Lakota war leader.
[5] Carpenter reported that some of the bones were neatly arranged and displayed while others were wrapped in black garbage bags and stored in a defunct fallout shelter.
[2] Pete Coffey, a tribal official of the Mandan, Hidatsa, and Arikara nations, emphasized the damage that has been caused by Miller's actions and the spiritual importance of returning ancestors' remains to their resting places.
[12] Holly Cusack-McVeigh, a professor of anthropology and museum studies at Indiana University-Purdue University Indianapolis has been a key partner in repatriating the recovered artifacts and remains.