A man living in Weatherford, Okla. for years was recently arrested for trying to join al-Qaida back in 2000.

New York Times reports the FBI just recently became aware of Naif Abdulaziz Alfallaj filling out an application to join one of the terrorist group’s most notorious training camps back when he was about 17. Investigators were able to match his fingerprints with documents captured in Afghanistan.

The application was for the Farooq camp, which is where four of the Sept. 11 hijackers trained.

Alfallaj was arrested on a count of visa fraud.