Toxicology results for Adrienne Martin are back, but officials with the St. Louis County Medical Examiner's office are still evaluating those results as they try to determine what killed her.
Martin was the girlfriend of former Anheuser-Busch CEO August Busch IV. She was found dead at his estate on Dec. 19.
Forensic administrator Suzanne McCune said Monday that a pathologist will look at the toxicology report and several other factors such as medical records and microscopic examinations in determining the cause of death for the 27-year-old woman. She says it is possible a determination could be made this week.
Busch said he awoke around 11 a.m. Dec. 19 and tried to awaken Martin, but couldn't.
