After her older brother , who is an Islamic State fighter , is killed , the group take her with back home .
A 12 year old girl named Zara is among the ambushers but does not take part in the fighting .
After girl 's older brother , who is an Islamic State fighter , is killed , the group take her with back home .
A 12 year old girl named Zara is among the ambushers but does not take part in the fighting .