Forensic psychiatrist and criminal profiler Michael Diamond:
Is it somebody who has access to a child, and thought about it and not done it because their contact is too obvious, and so it has been a rehearsed and lived-in fantasy without the terrible outcome?”
NoCookies | The Australian
Forensic psychologist Dr Yule:
"There may be a misconception that there is a lot that we don't know about this case. I've visited the crime scene multiple times and there is a lot of information that that location tells us"
"Combining that with assessing all the leads that have come into the investigation so far, there really are a limited number of possibilities that can account for William's disappearance and from that there are actually a lot of inferences we can draw about what has likely happened and the likely personality of a person or persons who may be involved."
"You would have to have some other reason to be there and take that opportunity; either visiting, residing or working in the vicinity."
https://www.smh.com.au/national/nsw...illiam-tyrrells-abductor-20150911-gjkqyz.html
Detective Inspector Jubelin:
“We would particularly like to hear about anyone who has been quite deliberate in avoiding the publicity about William’s abduction or in contrast, anyone who has been uncharacteristically, overly interested in the case.”
NSW Police Force
William's foster parents:
"To the person who knows something about what happened to William, it's been too long. We don't understand how you can keep quiet. How much longer can you carry this burden?
https://www.smh.com.au/national/nsw...illiam-tyrrells-abductor-20150911-gjkqyz.html