Mustafa al-Gharib, or Damian Clairmont, a Canadian who converted to Muslim, was killed in Syria while fighting for rebel forces.
He was killed during battling between different rebel groups, reported CBC.
Al-Gharib was injured during a battle and captured and killed by Free Syrian Army forces.
He was born in Nova Scotia, and converted to Islam following his drop-out from high school.
“He had some trouble as a teenager. When he converted to Islam, initially his family thought that this would be the thing that would calm him down. And eventually it did,” said CBC News senior correspondent Adrienne Arsenault, who interviewed al-Gharib’s mother last year.
He did seem to find some peace. And then he changed.”
Al-Gharib traveled to the Middle East in late 2012, telling his mother that he was going to study in Egypt to become an imam.
However, his mother was later informed that he had gone to Syria to join rebel forces.
The infighting between rebel groups that got him killed has been ramping up lately. Nearly 500 people have died from this fighting, the U.K.-based Syrian Observatory for Human Rights estimates.