Robert John Hill, known as Bobby, was 46 when he was last seen in Detroit on September 21, 2021. At the time he had been staying at various residences across the city, so there is no single confirmed last-known location. His family lost contact in late summer 2021, and the Warren Police Department filed a missing person report in January 2023.

Hill is described as a white male, about 5 feet 8 inches, 145–170 pounds, with brown hair and hazel eyes. Identifying marks include a star tattoo on the left side of his neck near his ear, a Tasmanian devil on a shoulder, the initials SMH and DDH on his arms, a circle tattoo on a hand, a scar on his nose, and a small birthmark on his stomach below the waistline.

Investigators and family say the case remains active. If anyone saw Robert Hill after September 21, 2021, or knows where he might have stayed in Detroit, please come forward with information.