Ralph Arnold, 60, was reported missing from Marysville, California, on December 2, 2021. Authorities opened a missing person investigation and searched the area where he was last seen, checked with local residents and businesses, and reviewed potential surveillance footage from surrounding locations.

Investigators also contacted hospitals, shelters, and nearby jurisdictions while canvassing for leads. There has been no confirmed sighting or communication from Arnold since December 2, 2021, and the case remains active. Anyone with information, even what seems minor, is asked to contact local law enforcement to assist in locating him.