Bruce Edwards Ivins

Bruce Edwards Ivins (/ˈaɪvɪnz/; April 22, 1946 – July 29, 2008) was an American microbiologist, vaccinologist, senior biodefense researcher at the United States Army Medical Research Institute of Infectious Diseases (USAMRIID), Fort Detrick, Maryland, and the person suspected by the FBI of the 2001 anthrax attacks. Ivins died on July 29, 2008, of an overdose of acetaminophen (Tylenol/paracetamol) in a suicide after learning that criminal charges were likely to be filed against him by the Federal Bureau of Investigation (FBI) for an alleged criminal connection to the attacks.

At a news conference at the United States Department of Justice (DOJ) on August 6, 2008 (eight days after Ivins' self-inflicted death), FBI and DOJ officials formally announced that the Government had concluded that Ivins was likely solely responsible for the deaths of five persons, and for the injury of dozens of others, resulting from the September–October 2001 mailings to members of Congress and to members of the media, of several anonymous letters which contained Bacillus anthracis, commonly referred to as anthrax. On February 19, 2010, the FBI released a 92-page summary of evidence against Ivins and announced that it had concluded its investigation. The FBI conclusions have been contested by many, including senior microbiologists, the widow of one of the victims, and several prominent American politicians. Senator Patrick Leahy (D-VT), who was among the targets in the attack, Senator Chuck Grassley (R-IA), Senator Arlen Specter (R-PA), Representative Rush Holt (D-NJ), and Representative Jerrold Nadler (D-NY) all argued that Ivins was not solely responsible for the attacks. No formal charges were ever filed against Ivins for the crime, and no direct evidence of his involvement has been uncovered.

The FBI subsequently requested a panel from the National Academy of Sciences (NAS) to review its scientific work on the case. On May 15, 2011, the panel released its findings, which "conclude[d] that the bureau overstated the strength of genetic analysis linking the mailed anthrax to a supply kept by Bruce E. Ivins." The NAS committee stated that its primary finding was that "it is not possible to reach a definitive conclusion about the origins of the B. anthracis in the mailings based on the available scientific evidence alone."