Brent Gilliland. (Courtesy Portage Co. Jail) Plover man pleads guilty to child sex assault February 21, 2020February 22, 2020 By Brandi Makuski A Plover man has pleaded guilty to two charges related to child sexual assault. Brent Michael Gilliland, 25, was convicted Fri... Subscribe today for home delivery + online access, or online-only annual or monthly access! Username Password Remember Me Forgot Password