Secret American military files from Guantanamo Bay, leaked by WikiLeaks, suggest that Abu Ahmed al-Kuwaiti may have been a trusted Bin Laden aide as far back as 2001, when the Al Qaeda leader disappeared from the Tora Bora mountains in Afghanistan. The file for Guantanamo Bay detainee Muhammad Mani al-Qahtani, the so-called 9/11 "20th hijacker" contains a reference to the Al Qaeda courier. Al-Kuwaiti apparently provided al-Qahtani with computer training for the mission to attack the US in the summer of 2001. The file describes Abu Ahmed al-Kuwaiti as being "a senior Al Qaeda facilitator and subordinate of [Khalid Sheikh Mohammed]. Al-Kuwaiti worked in the Al Qaeda media house operated by [Khalid Sheikh Mohammed] in Kandahar and served as a courier." The file also says that "Al-Kuwaiti was seen in Tora Bora and it is possible al-Kuwaiti was one of the individuals [al-Qahtani] reported accompanying [Osama Bin Laden] in Tora Boar prior…to his disappearance."