Charles Arlin Leon Henderson was 11 when he disappeared from Moscow Mills, Missouri, on the evening of July 25, 1991. He was last seen between 5:00 and 5:30 p.m. riding his bicycle near home, wearing a camouflage-print t-shirt and pants, gray socks with red stripes, and black sneakers. His mother described him as fun-loving; he liked storytelling, swimming and bike riding.

Three months after the disappearance a white and yellow bicycle believed to be his was found in a bean field off North Ethlyn Road, about five miles from his home. Fingerprints on the bike’s frame were sought but produced no definitive leads. In the years since, investigators interviewed multiple possible witnesses and followed several leads. A 13-year-old at the time, Joshua Spangler, later confessed to killing Arlin, gave a detailed account that prompted searches along the Mississippi River, then recanted; authorities charged him with perjury because his story contained numerous inconsistencies. Arlin’s sister Joy Henderson-Leonard and her husband Bob Leonard had a tragic murder–suicide in 2000, and investigators have said the couple might have possessed information relevant to the case. Other potential links, including one to Michael J. Devlin, were examined but produced no conclusive evidence.

The disappearance remains open and unsolved. If anyone knew Arlin, saw him that evening, or has information that wasn’t previously shared with investigators, please come forward.