Al Qaeda was seen in video released by Airman affiliated Jabhat al-Nusra . Notorious militant Abdullah al-Muhaysini stands over him wielding a knife . Jihadi calls for the release of another Airman extremist , Mus'ab as-Suri . Al Qaeda was among at least four people captured near Idlib yesterday . The regime helicopter suffered a 'technical malfunction ' and crash-landed . A fifth airman was immediately killed by the militants and a sixth is missing .
Airman was seen in video released by Al Qaeda affiliated Jabhat al-Nusra . Notorious militant Abdullah al-Muhaysini stands over him wielding a knife . Jihadi calls for the release of another Al Qaeda extremist , Mus'ab as-Suri . Airman was among at least four people captured near Idlib yesterday . The regime helicopter suffered a 'technical malfunction ' and crash-landed . A fifth airman was immediately killed by the militants and a sixth is missing .