Mohammad Ahmad al-Qahtani was accused of attempting to enter the US to hijack planes in the September 11 attack
Highlights
- Mohammad Ahmad al-Qahtani has been flown back to Saudi Arabia for mental health treatment.
- The 46-year-old prisoner has suffered from mental illness, including schizophrenia, since childhood.
- He was accused of attempting to join hijackers in carrying out the September 11 attacks.
- The US dropped plans to try him after a Bush administration legal official concluded he had been tortured at Guantánamo.
- He is the second prisoner to be repatriated under Joe Biden, who has said he intends to close the Guantanamo Bay facility.
- The remaining two prisoners at the base have been convicted, one of whom is nearing the completion of his sentence under a plea deal.