Cooper got loose at midnight on July 5th. He is chocolate and white, 16 lbs wearing a brown collar with colored circles and a short, thin leash. He was just adopted and is not familiar with the area. He was last seen on Gamble Dr. in Lisle. He needs medication and we have been looking for him nonstop. He is on every possible missing dog website, all police departments, vets and shelters in the vicinity have been notified. Please call 773-858-0132 if you have any information. Thank you so much.