When did this happen?
Friday night/Saturday it was reported, IIRC.
RE: When did this happen?
SOURCE:
NEW YORK TIMES
http://projects.nytimes.com/guantanamo/detainees/575-saad-masir-mukbl-al-azani
Saad Masir Mukbl al Azani is a 35- or 36-year-old citizen of Yemen. As of January 2010, the Guantánamo Review Task Force had recommended him for transfer. He was transferred to Oman on June 13, 2015.