He was suspected of providing support directly to two of the 9/11 hijackers who were in the U.S. at the time.
[T]he identity of a mysterious Saudi Embassy official in Washington who agents suspected had directed crucial support to two of the al-Qaida hijackers.
The disclosure came in a new declaration filed in federal court by a senior FBI official in response to a lawsuit brought by families of 9/11 victims that accuses the Saudi government of complicity in the terrorist attacks.
The declaration was filed last month but unsealed late last week. According to a spokesman for the 9/11 victims’ families, it represents a major breakthrough in the long-running case, providing for the first time an apparent confirmation that FBI agents investigating the attacks believed they had uncovered a link between the hijackers and the Saudi Embassy in Washington.
The article mentions the documents reference a man named Mussaed Ahmed al-Jarrah. According to the report, al-Jarrah worked in the Saudi Embassy in Washington, DC from 1999 and 2000.