On October 12, 2001, Miller opened an anthrax hoax letter mailed to her "New York Times" office. The 2001 anthrax attacks had begun occurring in the wake of the September 11 attacks in 2001, with anthrax-laced letters sent to ABC News, CBS News, NBC News, and the "New York Post", all in New York City, as well as the "National Enquirer" in Boca Raton, Florida. Two additional letters (with a higher grade of anthrax) were sent on October 9, 2001, to Senators Tom Daschle and Patrick Leahy in Washington. Twenty-two people were infected; five died. In 2008, the government's investigation of these mailings focused on Bruce Ivins, who later committed suicide, with the investigation determining that Ivins acted alone.