Washington (CNN)New allegations have emerged from the man described as the 20th 9/11 hijacker, alleging members of the Saudi royal family supported al Qaeda. Zacarias Moussaoui, who pleaded guilty in 2005 to six terror-related charges, makes the allegations in a sworn statement contained in a brief submitted Tuesday as part of an ongoing civil case by the families of 9/11 victims. In the late 1990s, Moussaoui says, he was tasked by Osama bin Laden to create a digital database cataloging al Qaeda's donors. Every day for two or three months, he says, he entered names of the group's donors into a Toshiba computer, along with how much they gave.
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Zacarias Moussaoui says members of the Saudi royal family supported al Qaeda
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The so-called 20th hijacker in the 9/11 terrorist attacks makes allegations in a brief that's part of a case by 9/11 victims' families
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Moussaoui, who's been in U.S. custody for more than 13 years, has had his credibility questioned before
The Sept. 11 attack has been the most intensely investigated crime in history and the findings show no involvement by the Saudi government or @placeholder officials."