Anyone who sent off to join ISIS is a frickin’ TERRORIST.
Many of them were probably directly involved in killings whether or not western intel happens to know about it. ALL of them were highly motivated and supportive of killings, whether or not they actually shed blood personally.
NONE of them are fit for resuming life in civilized societies, and ALL of them are deserving of severe punishment and permanent separation from innocent society, to PROTECT innocent people from them.