A man accused of kidnapping a young boy in broad daylight at a local park pleaded guilty but mentally ill Friday to criminal charges that could land him behind bars and possibly committed in a treatment center. A 4-year-old boy was on his bike Aug. 11, 2017 near Olson Play Park in Woodstock when police say 40-year-old Kevin Sorensen grabbed him and attempted to take off his clothes. After Sorensen picked the boy off his bicycle and tried to run off, the boy and his friends began screaming, police said.