Even though he won his writ of habeas corpus case at the 8 year mark for being falsely accused of connections with the 9/11. After beating the Bush Admin, he thought he was free but the Obama Admin decided to add 7 more years of detention for him at Gitmo. He never saw his mother again as she passed away in 2013.:
Mohamedou Ould Slahi (Arabic: محمدو ولد الصلاحي; born December 21, 1970) is a Mauritanian engineer who was detained at Guantánamo Bay detention camp without charge from 2002 until his release on October 17, 2016.
In 2005, the internationall y recognized criminal defense lawyer Nancy Hollander got involved in Slahi's case, together with lawyer Theresa Duncan. They argued Slahi's rights to a fair trial, despite criticism for defending a terrorist suspect. In 2010, Judge James Robertson granted a writ of habeas corpus, ordering Slahi to be released on March 22. In his unclassified opinion, Judge Robertson wrote: "... associations alone are not enough, of course, to make detention lawful." The Department of Justice appealed the decision. The D.C. Circuit Court of Appeals vacated the ruling and remanded the case to the District Court on November 5, 2010, for further factual findings. The District Court never held the second habeas hearing.
On July 14, 2016, Slahi was approved by a Periodic Review Board for release from detention. Slahi was freed and returned to Mauritania on October 17, 2016; he had been imprisoned at Guantánamo for over fourteen years.
Slahi wrote a memoir in 2005 while imprisoned, which the U.S. government declassified in 2012 with numerous redactions. The memoir was published as Guantánamo Diary in January 2015 and became an international bestseller. Slahi is the first Guantánamo detainee to publish a memoir while imprisoned. Slahi wrote four other books while in detention, but he has not been allowed to access these books since being removed from Guantanamo.