Cleveland is sorry for sending an ambulance bill to the family of Tamir Rice, the 12-year-old fatally shot by a city police officer while he held a pellet gun. After news broke of the $500 claim filed against Rice's estate, Mayor Frank Jackson apologized Thursday, Cleveland 19 reports. The mayor says the billing process is routine, but Rice's bill should have been "red flagged" and not actually submitted. He says he'll investigate to see if disciplinary action is needed. CBS News reports that city officials say all claims have been withdrawn.