(MCT) — SEATTLE — The FBI agent who initiated the investigation that led to the resignation of CIA Director David Petraeus has a history of bucking the system on principle, once testifying for the defense of convicted would-be “millennium bomber” Ahmed Ressam about Ressam’s harsh treatment by the agent’s colleagues after the 9/11 attacks.

Special Agent Fred Humphries was outspoken in opposing the FBI’s decision at the time to turn Ressam over to agents from New York after the attacks, and warned their tough tactics were undoing the cooperation Humphries had coaxed out of the al-Qaida-trained terrorist. Eventually, Ressam ceased cooperating, as Humphries predicted.