Although it did not become known publicly until October that year , when he posted a series of photographs on - line , with himself posing alongside armed jihadists .
Mohammad traveled to Syria in 2012 , to participate in the Syrian civil war .
Although it did not become known publicly until October that year , when Mohammad posted a series of photographs on - line , with himself posing alongside armed jihadists .
Mohammad traveled to Syria in 2012 , to participate in the Syrian civil war .