Ian was last seen on April 30, 1992, in Denver, Colorado. He lived in the northern section of the city, in the area of Lowell Boulevard and west 29th Avenue. He also frequented the Idaho Springs area. He has never been heard from again. John Taylor is the prime suspect in Ian's disappearance. Taylor admitted he had sexually abused Ian, starting when the boy was thirteen and continuing until the time he disappeared. Taylor was in his forties at the time. Ian told a counselor that Taylor had threatened to harm him and his family if he testified against him. He allegedly punched Taylor in the face later that year and was charged with assault in juvenile court. Then he disappeared. His disappearance remains unsolved.