Magdalena Miriam Tröndle/picture alliance via Getty Images
- Ramzi bin al-Shibh is one of five defendants accused of being key accomplices to the 9/11 attacks.
- A military tribunal in Guantánamo Bay found bin al-Shibh mentally unfit for trial.
- His lawyer argued that torture administered by the CIA caused bin al-Shibh's psychosis.
A Yemeni prisoner accused of being one of the key accomplices in the September 11, 2001, attacks was deemed mentally unfit to stand for trial, a military judge ruled on Thursday.