CEDAR RAPIDS — A 20-year-old Hiawatha man pleaded guilty Monday to sexually abusing a 14-year-old girl between Dec. 29 and Jan. 5. Nathan I. Jiles, charged with third-degree sexual abuse, admitted during the plea hearing in Linn County District Court that he sexually assaulted the girl. According to a criminal complaint, the girl gave details of the abuse during a forensic interview at St.