A Waterloo teenager is in custody for supplying a pill that made a classmate sick. Waterloo police say 13-year-old Kerry Williams gave a 12-year-old classmate a pill and the classmate got sick. The 12-year old was treated and released at a local hospital. Williams is charged with delivery of a simulated controlled substance. Police say they’re testing the pill to try and figure out what it is. They say they don’t know what Williams said the pill was.