A teenager at the Greenbelt River Trail Park Mitchell, a city with a population of 124 people located 140 miles north of Des Moines on the state's border, came upon "what appeared to be a human skull, which had been placed on a stick."
Nathan James Gilmore, 23, is accused of murdering a woman in April 2021 then placing her head on a stick in Iowa's Greenbelt River Trail Park, police said.