Disenfranchised, disaffected young person living in the outer, lower socio-economic suburbs of Melbourne. A "Have Not". Probably underemployed, probably feels jibbed that his life isn't as good/bountiful as the ads say it should be. Feels "different" or less accepted due to religion and/or ethnicity or other demographic. Young male with brain not yet fully formed, awash with hormones, not sure how to productively deal with feelings of anger and alienation. Once upon a time would have joined a gang, hooned around the street in a stolen car, vandalised bus stops, etc....but instead found a sense of belonging with a group of like-minded thugs hiding behind religion to "legitimise" their anti-social behaviour.
No different to bikies, nationalist/racist groups, car hoons, etc, etc, etc....

I live in the outer suburbs of Melbourne. I see these disenfranchised teens all the time. They might express their disillusionment and anger in a different way but they are all the same underneath IMO.