A Terrible Accident
According to the final necropsy results (PDF) released today by the KHRA, there was no “catastrophic event,” no heart attack or pulmonary aneurysm that felled Eight Belles as she galloped out after finishing second in the Derby, causing her leg injuries. The report concluded that the filly suffered compound fractures in both front legs at the fetlock joints, for which she was euthanized on track, and noted that “no pre-existing bone pathology was observed.” In other words: She was sound and what happened was a terrible accident.
5/16 Update: KHRA reports that Eight Belles tested negative for steroids and other substances.