How and why were 46 Turkish hostages freed?

Daily Briefing How and why were 46 Turkish hostages freed? Metin Turcan for Al-Monitor Turkey wonders what brought about the freeing of the hostages taken at its Mosul Consulate and why they obtained their liberty now.http://www.al-monitor.com/pulse/originals/2014/09/turkey-iraq-syria-isis-turkish-consulate-hostages-freed.html?utm_source=Al-Monitor+Newsletter+[English]&utm_campaign=dc2fbe9639-September_22_2014&utm_medium=email&utm_term=0_28264b27a0-dc2fbe9639-100368361#