LONG ass article and source documents linked. Just going to post the part you came to read, but it's much longer if you click the link
EXCLUSIVE: In court filing, FBI accidentally reveals name of Saudi official suspected of directing support for 9/11 hijackers
Chief Investigative Correspondent
Yahoo News•May 12, 2020
After being contacted by Yahoo News on Monday, Justice Department officials notified the court and withdrew the FBI’s declaration from the public docket. “The document was incorrectly filed in this case,” the docket now reads.
Describing the request by lawyers for the 9/11 families to depose that individual under oath, Sanborn’s declaration says in one instance that it involves “any and all records referring to or relating to Jarrah.”
The reference is to Mussaed Ahmed al-Jarrah, a mid-level Saudi Foreign Ministry official who was assigned to the Saudi Embassy in Washington, D.C., in 1999 and 2000. His duties apparently included overseeing the activities of Ministry of Islamic Affairs employees at Saudi-funded mosques and Islamic centers within the United States.
Relatively little is known about Jarrah, but according to former embassy employees, he reported to the Saudi ambassador in the United States (at the time Prince Bandar), and that he was later reassigned to the Saudi mission in Morocco. His current whereabouts are unknown but he is believed to be in Saudi Arabia.
Jarrah has been on the radar screen of the lawyers for the 9/11 families for some time and is among nine current or former Saudi officials who they suspect have important information about the case and have sought to either question them or get access to FBI documents that mention them.
The families have also tapped former agents to help investigate the activities of the potential witnesses, including Jarrah.
Jarrah “was responsible for the placement of Ministry of Islamic Affairs employees known as guides and propagators posted to the United States, including Fahad Al Thumairy,” according to a separate declaration by Catherine Hunt, a former FBI agent based in Los Angeles who has been assisting the families in the case.
Hunt conducted her own investigation into the support provided to the hijackers in Southern California. “The FBI believed that al-Jarrah was ‘supporting’ and ‘maintaining’ al-Thumairy during the 9/11 investigation,” she said in her declaration.
The Sanborn declaration represents the first public confirmation that the so-called “third man” referred to in the 2012 report was in fact an accredited Saudi diplomat. But all of the FBI evidence the agents had gathered about Jarrah and his communications about the hijackers remain under seal.
Elsewhere in her declaration, Sanborn asserts that the contention that Jarrah “tasked” Thumairy and Bayoumi with assisting the hijackers was more a “theory” of the agents working the case rather than a conclusion based on hard evidence.
One former bureau official familiar with the FBI investigation into the matter, and who asked to speak confidentially, says that agents had developed strong evidence of meetings and communications among Jarrah, Thumairy and Bayoumi in which assistance to Mihdhar and Hazmi, the two hijackers, was believed to have been discussed.
But the agents were unable to prove that Jarrah, who the agents found had flown to Los Angeles to meet with Thumairy, knew that Mihdhar and Hazmi were members of al-Qaida and were plotting the attacks on U.S. soil, resulting in bitter divisions within the bureau about what to make of the contacts the agents had uncovered.