At one point, he and a number of fellow prisoners were forced to share their large cell with a horse that had offended a local Taliban leader in some way.While the city was being bombed in October 2001, the prisoners were forced to dodge the terrified horse as it clattered around the cell.

When the Taliban regime collapsed the jailers fled, but Harith and a number of prisoners remained at the prison, where they were being fed. It was here that he was discovered by a journalist from the Times, who alerted staff at the newly reopened British embassy in Kabul, believing they would arrange his repatriation.

Instead, Harith was detained by US forces, first at their own detention facility in Kandahar, and then at Guantánamo.His Guantánamo file, which was among a large cache of documents later passed to WikiLeaks, shows that the camp authorities quickly reached the conclusion that he had no connection with the Taliban or al-Qaida but decided against releasing him because his “timeline has not been fully established”, and because the British diplomats who had seen him at Kandahar had found him to be “cocky and evasive”.

Source: Isis bomber Jamal al-Harith: from Manchester to Iraq via Guantánamo | World news | The Guardian