FREED TO KILL One-armed ISIS warlord behind Istanbul massacre ‘was due to be sent to Russia on terror charges… but court ruled it breached his human rights’ Chechen extremist Akhmed Chataev is thought to control as many as 130 ISIS militants BY FIONN HARGREAVES 1st July 2016, 4:49 pm A ONE-ARMED ISIS militant who masterminded the Istanbul airport terror attack had his extradition to Russia refused because of his refugee status. Akhmed Chataev was arrested in Bulgaria in 2011 for terrorism offences. But due to a ruling by a Bulgarian judge, the Chechen warlord could not be sent back because...