Abu Mosa, the press officer of ISIL (ISIS), has been killed in an attack on a Syrian airbase. ISIL is currently fighting against Syrian government forces, in addition to its campaign in Iraq, that has been met by United States airstrikes. He was killed by members of the Syrian army who are loyal to the President of Syria, Bashar al-Assad.
The U.S. Department of State confirmed Mosa's death in a tweet:
This week, ISIL released a video showing the beheading of American journalist James Foley. FBI hostage negotiators referred to the murder and video dissemination as a public relations move and recruitment effort from ISIL. It is unknown if Mosa was at all involved with keeping Foley hostage or with his eventual murder