TULSA, Ok. - An arson fire is under investigation. Tulsa fire investigators want to find the man who burned the Diamond and Jewelry Buyers at 4606 South Memorial Thursday night just before 11 p.m. Tulsa Fire Captain Michael Baker says a video surveillance camera shows a man spreading a flammable liquid under the rear door of the business and igniting it. Baker says the man drove away in a maroon or red P-T Cruiser. If you can help in the investigation call 5-9-6-2-7-7-6.