Details of Disappearance Letterman disappeared while hiking at Devil's Den State Park in Fayetteville, Arkansas on August 28, 2017. In February 2019, his skull was found off one of the trails in the park. It was identified a month later. Letterman's death is under investigation.
- Washington County Sheriff's Department
Updated 2 times since October 12, 2004. Last updated April 3, 2019; case resolved.