CHICAGO (AP) -- A 15-year-old boy accused of pretending to be a Chicago police officer and later parading as a grown-up to steal a car from a dealership has pleaded guilty in both incidents. Cook County state's attorney's office spokesman Andy Conklin says the unidentified teen will be sentenced June 26, pending a court-ordered psychological evaluation. He pleaded guilty last month. The boy was charged with impersonating an officer for allegedly walking into a police station in January wearing a uniform.