Jordan has threatened a harsh response to the apparent killing of its pilot held captive by the Islamic State of Iraq and the Levant.<br />ISIL released a video online on Tuesday that purports to show First Lieutenant Moath Al Kassasbah being burned alive. The video is reported to have been filmed a month ago.<br />Al Kassasbah was captured by ISIL fighters in December when his F-16 crashed near Raqqa in Syria.<br />Al Jazeera’s Nisreen El Shamayleh reports from the Jordanian capital Amman.