Al-Rabeiee was considered to be the "ring leader" of his Yemen terrorist cell. In 2002, he had been identified by the FBI as traveling on Yemeni passport 00452004. His identified aliases included Fawaz Yahia Hassan Aribii, Fawaz al-Rubai, Fawaz Yehia Hassan al-Rabie, Fawaz Yahya Hasan al-Rabi'i, Fawaz Yahya al-Ribi (al-Ruba'i, al-Rabia'i, al-Rabi'i), Forqan al-Tajiki, Furqan al-Tajiki, Furgan al-Tajiki, Furqan the Chechen, Faris al-Baraq, Sa'id Musharraf, and Salem al-Farhan. "Furqan al-Tajiki" is the addressee of a letter, found in Afghanistan, which appears to have been written by his brother Salman Yahya Hassan Mohammed Rabeii.