You worked out my cryptic clue re the shoes, nice one iiiii"s
I theorize that's why FFC drove down Batar Creek Rd, because the shoes were still left on the deck when he 'allegedly' disappeared. To fit the abduction theory, those shoes can't be still at the house. Deliberately avoids answering the question in 000 call because it's all too 'roar (sic)'
I think all the clues are right there in front of everyone, but does the government want this case solved? It's like a jigsaw puzzle, some of the pieces won't fit (red-herrings-misdirection) Even the mention of hearing a child's scream as she was walking down Benaroon Drive. I think that scream did occur, but not in that context.
Detectives just need to look outside the box (direction-wise) and you get very close to solving what truly happened that morning. I'm not saying anymore. It's just my theory, whether I'm right, that is $1m question; that's what I'm currently working on in-depth and have been for 3 years.
I also believe there's one very important place that's never been investigated/searched. Trust me, I've looked through dozens of articles/documents and this place sticks out like dog's nuts (it has been mentioned once by someone very close to this case and only once), proximity-wise. It fits like a glove.
I plan to approach the task force soon with my research/findings and reveal that place to Mr. Laidlaw.
Perhaps I can be like that Netflix doco Don't Fk With Cats and finally get justice for William