Who is Amrullah, ex-spy who declared himself Afghanistan's caretaker Prez?

Afghanistan's First Vice President and former spy, Amrullah Saleh, declared himself the 'caretaker President' of Afghanistan after President Ashraf Ghani fled the country. Saleh, who's in Panjshir Valley that's still free from Taliban control, has been collecting support to resist the Taliban. Previously, the 48-year-old worked for Afghanistan's intelligence agency and the interior ministry.