At the age of sixteen, he was captured along with his older cousin as part of a large group of 120 soldiers near Kunduz, and transferred to Shiberghan prison for six weeks, before being flown to Guantanamo on January 16, 2002.

[3] On June 15, 2005, human rights lawyer Clive Stafford Smith identified al-Shihri as one of a dozen teenage boys held in the adult portion of the prison.

An October 2009 article in the Saudi Gazette asserts his older brother Saad Muhammad Al-Shehri took him to Afghanistan after he finished "intermediate school".

He was killed in a shootout with Saudi police, while apparently preparing to commit a suicide attack wearing an explosive belt on October 18, 2009.

These hearings were designed to assess the threat a detainee might pose if released or transferred, and whether there were other factors that warranted his continued detention.

During his CSR Tribunal, the allegations stated Yussef Mohammed Mubarak al-Shihri was captured with his cousin, in Kunduz, in northern Afghanistan.

[6] After his death, the Saudi Gazette reported that two of his brothers, Faisal and Mustafa, and a cousin, Abdul Ghani Al-Shehri were imprisoned in at the Hai’er Prison on suspicion of terrorism.

[17] Al Shihri, Raed al-Harbi, and a third man were killed at a border crossing while trying to enter Saudi Arabia from Yemen.