Marc Arthun, 53, of Mason, Wisconsin, was reported missing on December 10, 2022. He was last seen in the vicinity of his home; when he did not return, family and friends raised the alarm and law enforcement began searching the area.

Ground teams and search dogs were deployed in the days after his disappearance, and officials asked the public for help. Marc’s family has remained active in keeping the case visible, organizing searches, community events and using social media and local news to generate leads. Investigators initially reported no significant leads.

Marc is described by those close to him as a dedicated community member. If anyone saw Marc Arthun around December 10, 2022, or has information about his whereabouts, please come forward.