Coalition forces led by the U.S. killed Turki al-Binali, a senior leader of the Islamic State group in Iraq and Syria also known as ISIS, in an airstrike last month, the U.S. Central Command confirmed Tuesday in a statement. Al-Binali, “the self proclaimed ‘Grand Mufti,’ or chief cleric of ISIS,” was killed in a May 31 airstrike in the city of Mayadin in eastern Syria, the statement said.