|On the day of the terror attack, on September 11, 2001, the FBI, the federal police, instigated what would become the largest criminal investigation in history of the bureau. The criminal investigation assigned 7,000 of its then 11,000 agents on the case, named PENTTBOM (“Pentagon/Twin Towers Bombing Investigation”).|
The criminal investigation revealed the identity of the 19 hijackers, and uncovered how the terrorists had planned and carried out the attack.
As is customary with police investigations, the full body of material has not been released to the public.
Zacarias Moussaoui, known as the “20th hijacker”, declared himself guilty on six counts against him, in connection with his involvement in the terror attack on September 11, 2001. In May, 2006, he received a life sentence.
|A preliminary summary of the criminal investigation has been released, on January 11, 2002.|
The FBI: Protecting the Homeland in the 21st Century
Summary (p. 101)
Along with the release, one of the authors, Dr. Bruce Hoffman, was interviewed:
9/11 Material Released in Response to Executive Order 14040
April 4 2016 Electronic Communication Part 01 of 01, September 2021