(CNN) — An American named Douglas McCain was killed last weekend in Syria, where he was fighting for ISIS, two U.S. officials told CNN.
The man's uncle, Ken McCain, said that his nephew had gone to fight as a jihadi and that the U.S. State Department told the family Monday about the death.
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He died in a battle between rival extremist groups in the suburbs of Aleppo, Syria's once-bustling commercial capital and largest city, according to the Syrian Observatory for Human Rights, a British-based group that monitors the conflict.
Like the U.S. officials, the group described McCain as an ISIS fighter and said he was killed in a battle with the al-Nusra Front, an al Qaeda-linked organization that the U.S. government has blacklisted as a foreign terror organization.
According to his uncle, Douglas McCain's journey to Syria began sometime after he converted several years ago from Christianity to Islam.