How did Professor Haigwood come to make the case against Ivins? It appears that (like Jean Duley, Ivins' trainee therapist who was under house arrest when she was brought by FBI to obtain a restraining order against Ivins, then was trotted out for all major media by the FBI before she went into hiding) Haigwood too received considerable coaching from the FBI. A very long interview with Nancy Haigwood is posted here by Frontline/ProPublica/McClatchy. The statements below come from this interview.
It is telling that Haigwood learned from the FBI that Ivins meant to harm her (back in graduate school) by damaging the brakes on her bicycle. The FBI told her Ivins stole her lab notebook in graduate school. The FBI told her "that it was reasonable for me to be frightened." and "they warned me on a regular basis." “Be careful,” they said. “The best thing you could possibly have done was to move to the West Coast, where you’re out of range, out of driving range.”
"... I just think at any point things could have gone differently. What if I wasn’t so careful? If I hadn’t called the FBI? Might I have been a victim?"