Leon Wilder III, 30, of Columbia, Missouri, was found dead in a rural area of Audrain County on July 6, 2017, the victim of a fatal gunshot wound. Investigators say the shooting occurred during a drug transaction that escalated into violence. Wilder reportedly entered a truck with Richard Neal Henry and Henry’s then-girlfriend Arline Diedrich, and the fatal shot was fired inside the vehicle.

After the shooting, Diedrich is accused of helping Henry abandon Wilder’s body at the remote location where it was later discovered; authorities say the two cleaned the truck and destroyed evidence. A third person, Justin Traughber, is reported to have arranged the drug deal that brought Wilder to Henry’s truck.

Richard Neal Henry later pleaded guilty and was sentenced to 25 years in prison in June 2019. As part of plea agreements, Arline Diedrich and Justin Traughber agreed to testify against Henry; Traughber received a ten-year sentence for his role in facilitating the drug transaction. Did anyone in Audrain or Boone County remember seeing Wilder, Henry, or the truck around July 6, 2017?