Bruce Ivins, the senior bio-defense researcher at United States Army Medical Research Institute of Infectious Diseases (USAMRIID), before allegedly being driven to suicide by the allegations that he was the "sole perpetrator of the 2001 anthrax attacks", reportedly had a "long and strange obsession" with Kappa Kappa Gamma, as well as with other sororities such as Chi Omega. Ivins reportedly became obsessed with Kappa when he was rebuffed by a woman in the sorority during his days as a student at the University of Cincinnati. The letters containing anthrax spores (which eventually killed 5 people and injured dozens more) were mailed from a drop box approximately 300 feet from a KKG storage facility at Princeton University, and only 60 feet from the KKG office. A US Government investigative panel, called the Expert Behavioral Analysis Panel, issued a report in March 2011 which detailed more of Ivins' obsession with the sorority. According to the panel's report, Ivins tormented sorority member Nancy Haigwood at the University of North Carolina. Ivins stole her notebook, which documented her research for her doctoral studies, and vandalized her residence.