Kyrin Tober Arthur, a 17-year-old resident of Riverton, Wyoming, was reported missing after he was last seen on May 4, 2026. His case was publicized by the Wyoming Division of Criminal Investigation (DCI) on its statewide Missing Persons database, which compiles listings from National Crime Information Center (NCIC) entries submitted by local law enforcement agencies. According to that listing, Kyrin is 5 feet 11 inches tall and weighs approximately 170 pounds, with black hair and brown eyes. He was last seen wearing a white shirt and grey and black denim jeans. The local news outlet County 10 reported his disappearance on May 7, 2026, three days after he was last seen, citing the DCI listing as its source.
The Riverton Police Department (RPD) is the agency of jurisdiction, with DCI assisting through its statewide missing-persons clearinghouse function. A separate RPD call-log entry covering May 4–7, 2026 documents a runaway report taken in the area of East Park Avenue in Riverton at approximately 4:37 p.m., involving a 17-year-old Riverton boy who was placed into NCIC; the log entry does not name the boy, but its age, timeframe, and location are consistent with Kyrin's case. No arrests, persons of interest, or public updates on Kyrin's location were located in this research, and his case appears to remain open as of this writing. Anyone with information about Kyrin's whereabouts is asked to contact the Riverton Police Department at (307) 856-4891 or the Wyoming Division of Criminal Investigation at (307) 777-7181.