Operation Quickfind: Matthew Mayer-Rich

Update: Matthew has been found. Thank you all for your help.
Authorities have issued an Operation Quickfind notice for Matthew Mayer-Rich, age 13. He is a white male, standing 5 feet 2 inches. He weighs 100 pounds. He has gray eyes and light brown hair. He was wearing a dark blue coat with white patches on the shoulder, a blue T-shirt and blue jeans. Mayer-Rich was last seen leaving North Central Junior High at 1:30 p.m. on Dec. 19. He may be defiant and oppositional.
The police are urging people with information to call dispatch at (319) 356-6800.