Second American ISIS fighter may be dead

U.S. authorities are investigating a claim by a coalition of Syrian opposition groups that they have killed an American national during fighting with kharijites, or extremists. The statement is an apparent reference to fighting several days earlier between ISIS and the coalition, which is made up of fighters from the Free Syrian Army, Syrian Al Qaeda branch al-Nusra Front, as well as smaller militant factions. If true, the unnamed militant would be the second American ISIS fighter confirmed killed in battle, after the U.S. government said that Florida native Douglas MacArthur McCain also died in the fighting over the weekend.