Thomas, who was 58 and a former model, had the procedure done on her back, arms and stomach on March 21 and was found unresponsive the following day Her death - which was caused by an injury suffered while under the knife - has been ruled an accident Thomas' plastic surgeon, Dr. Harold Bafitis, told investigators he was about to have a follow-up with her in a hotel room when she became unresponsive Mary Jane was then reportedly transported to a local hospital where she was pronounced dead