Stevens, 63, a photo editor at the tabloid newspaper The Sun, died of inhalation anthrax in Boca Raton, Florida. Officials confirmed that the type of anthrax that killed Stevens was the same strain that was mailed to a number of journalists, officials and other people, including NBC Nightly News anchor Tom Brokaw. In 2008, federal officials identified government researcher Bruce Ivins as the source of the mailed anthrax. Authorities said Ivins took his own life as they were about to bring an indictment. Ivins was said to be motivated by a desire to expose the country's vulnerabilities to biological attacks.