I have found another one of the aliases used in the various 9/11 reports. The real name of Tim, an FBI National Security Law Unit attorney who was consulted about the Zacarias Moussaoui case, is Tom Ainora. Tim is mentioned in the Justice Department inspector general’s report into the FBI’s pre-9/11 failings.
This has been added to the list of aliases post, which you can find here.
I found the name in a document that Eric got from the National Archives and uploaded to the 9/11 Document Archive at Scribd. It is a memo summarising an interview with former FBI General Counsel Larry Parkinson, drafted by 9/11 Commission Special Projects team leader Barbara Grewe. Ainora’s real name is mentioned at the bottom of page 5.