if i had to object, it would be that it appeared that the possibility that foul play was really not taken into account. so that extra measure perhaps was not done in this case. >> the doctor who performed the autopsy was not a forensic pathologist, but he did something virtually unheard of at the time. for reasons not entirely clear, he kept a vial of donna's blood in refrigerated storage. and two years after her death, it was sent to the forensic lab for testing. a sample was placed in a gas chromatograph mass spectrometer. which broke the blood down into its chemical components. traces of a common antidepressant known as elavil were clearly present in donna's blood. >> in someone who had never taken the drug before, i believe