What camping buddies are you referring to? And why reference grey nomads?? That is just totally unfair! These people, known as grey nomads are a wonderful group and you once again are trying to tarnish the name of people that are totally innocent in this case! If you have a link to where these so called camping buddies have tried to distance themselves, post a link <modsnip>
If I may, this is a collective response to both your posts Makara .. Which Echoed my thoughts and questions.
So I give my opinion..
Whether William is or is not of indigenous decent is of no consequence, and also IMO does not require any reference. This is a little boy in danger, and as such, is deserved of all our best efforts in bringing about his safe haven. .. And also bringing about the due recompense for those who preyed upon him!
The reality is that something happened, and that brought about the disappearance of William.
Someone does know .. at the very least is the One who removed that little boy from his place of abode on that fateful day.
However, neither William or his far reaching family connections can expect any answers from THIS person, as IT can't even begin to get a Backbone, let alone a Conscience (If you* the responsible person is reading this, or for that matter anyone who is wondering about possible connections, please please, put it to the authorities, redeem yourself. It is never too late - yep there will be a penalty, that's how we work, but as I told my kids - own up and it will be much easier than if you lie and I find out! Over and above that is the peace of mind)
The rest is (from our perspective) supposition and conjecture, and a whole heap of well intentioned desire for a good outcome.