Was the FBI's Science Good Enough to ID the Anthrax Killer?

I thought this article would be good because it addresses the ability to find criminals with the use of science. It involves tracing Anthrax, which was received in many letters, back to one single flask. Although Bruce Ivins, the suspect in question, committed suicide in 2008, the FBI is sure this discovery would have been the most substantial part of the case against him. The problem is that some are not convinced and do not believe this discovery is not a fully legitimate case. You be the judge.