In this Facebook posting, Ayoub and his high school friend each hold up one finger, a sign many jihadists use to show they're willing to die for god.

In this Facebook posting, Ayoub and his high school friend each hold up one finger, a sign many jihadists use to show they're willing to die for God.

Credit:

Laurence Geai

Mohamed, 28, stayed at the Turkish border town of Killis for six weeks trying to find Ayoub, his 15-year-old brother who went to fight in Syria last December.

Mohamed, 28, stayed at the Turkish border town of Killis for six weeks trying to find Ayoub, his 15-year-old brother who went to fight in Syria last December.

Credit:

Laurence Geai

A Facebook picture posted by Ayoub in Aleppo this January. The 15-year-old wears long, Pakistani-style dress and points his forefinger up to the sky -- an ominous sign according to Mohamed.

A Facebook picture posted by Ayoub in Aleppo this January. The 15-year-old wears long, Pakistani-style dress and points his forefinger up to the sky — an ominous sign according to Mohamed.

Credit:

Laurence Geai

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