Ramzi bin al-Shibh
Ramzi bin al-Sibh is a Yemeni citizen being held by the United States as an enemy combatant detainee at Guantanamo Bay in Cuba. He is accused of being a "key facilitator for the September 11 attacks" in 2001 in the United States.
n the mid-1990s, bin al-Shibh moved as a student to Hamburg, Germany, where he allegedly became close friends with Mohamed Atta, Ziad Jarrah and Marwan al-Shehhi. Together, they are suspected of forming the Hamburg cell and becoming central perpetrators of the September 11 attacks. He was the only one of the four who failed to obtain a US visa; he is accused of acting as an intermediary for the hijackers in the United States, by wiring money and passing on information from key al-Qaeda figures. After the attacks, bin al-Shibh was the first to be publicly identified by the US as the "20th hijacker", of whom there have been several more likely candidates.
Bin al-Shibh has been in United States custody since he was captured on September 11, 2002, in Karachi, Pakistan.[4] He was held by the CIA in black sites in Morocco before being transferred to Guantanamo Bay in September 2006. Finally charged in 2008 before a military commission, he and several others suspected in the 9/11 attacks went to trial beginning in May 2012.