Napoleon's Cancer [audio 5min @10:21]

Napoleon Bonaparte died in exile on Saint Helena almost 200 years ago. And ever since, there have been any number of theories regarding the cause of his death. The autopsy report at the time cited stomach cancer. But many have speculated that the former French emperor was actually murdered -- with arsenic poisoning having been suggested as the most likely cause. Now, a new investigation into Napoleon's death is challenging those conspiracy theories. Dr. Robert Genta is a professor of pathology and internal medicine at the University of Texas Southwestern, and the senior author of the study.