An autopsy performed on Chicago chef Charlie Trotter has revealed no sign of trauma or foul play, the Cook County Medical Examiner's Office said Wednesday. "Additional tests, including a toxicology analysis, will be conducted," the medical examiner's office said in a statement, adding the tests could take up to eight weeks to complete. The restaurateur and cookbook author was found dead Tuesday at his home. He was 54. People.com quoted friends and co-workers as saying Trotter had suffered declining health in recent years and been hospitalized after a seizure last summer, however, the information made public by the medical examiner's office Wednesday did not mention anything about a recent illness.