Thanks, M... I wish I could make the images bigger.
Apparently one neighbour was away, and the other neighbour left home 90 minutes before William went missing. From what the neighbour was saying, it's like she believes the abductor knew at least one neighbour would be away, and then waited for her to leave too. The abductor might've had a view of the grandma's property from the bush track. Theoretically, the abductor would have waited around 90 minutes for the adults to go inside. It seems like an awful lot of determination and chance, though. What if the adults had never gone inside?