An off-duty member of Britain's elite Special Air Service [SAS] emerged as a hero of the Nairobi siege yesterday, credited with saving up to 100 lives. He is said to have returned to the building 12 times, despite intense gunfire. A friend in Nairobi said: ‘What he did was so heroic. He was having coffee with friends when it happened. Imagine going back in when you knew what was going on inside.’ He cannot be named for security reasons. British Special Forces regularly train and operate out of Kenya, and have been involved in tracking UK citizens involved with hardline Islamists in Somalia and Yemen. Read more.