Donald Leo Dietz, 66, known locally as the Bicycle Man for getting around by bike, disappeared from the Saranac, Michigan, area in early September 2007. The last confirmed public sighting was September 8, 2007, at a Meijer in Ionia; official last contact is listed as September 10, 2007. He lived alone on a remote 20-acre property near the Ionia State Game Area and was described as reclusive, frugal and vulnerable. His prescription eyeglasses were left beside his bed, and investigators found no sign he had packed or planned to leave.

Within weeks the case shifted from a missing-person inquiry to a federal investigation into identity theft, bank fraud and an apparent plot to obtain Dietz’s substantial retirement savings. Authorities focused on two men, Rami Saba and Raogo Ouedraogo, after evidence showed someone had been accessing Dietz’s accounts, attempting large transfers and impersonating him by phone. Dietz was later declared legally dead in 2010, but his body has never been found.

Does anyone who knew Don or lived near the Ionia State Game Area in 2007 have information about his movements or contacts in the weeks before he vanished?