. >> sreenivasan: mohammed nidalha hasn't seen his son reda in more than two years. he scrolls through old pictures on his ipad, from when he was 19 years old to when he was five- years-old. >> ( translated ): reda grew up like any other child. he had lots of friends, just a regular boy like any other. >> sreenivasan: the family emigrated from morocco, but reda was born and raised in leiden, near rotterdam in southern holland. >> sreenivasan: nidalha says his son reda went to syria to join the muslim militant group isis. >> ( translated ): in the weeks leading up to his departure for syria, he fooled and misled us all. >> sreenivasan: the family is muslim, but nidhala says, they are not very religious. he believes when reda visited an uncle in belgium for a few months in 2014, reda fell under the sway of isis recruiters. after that, he traveled to turkey, the gateway into syria. >> ( translated ): reda called his sister and told her "i love you, i love dad, i love mom, but i'm going to syria to help children and help the women being raped." >> sreenivasan: as soon as