Just one week earlier (than your linked article) the DM wrote ...
It is understood Mr Lamont only found out his child was missing when police woke him up at his Belalie North home, hours after Gus had vanished. Link
And the DM has said that mum Jess was the one who was at the homestead when Gus went missing (in the article I just linked), then the DM said it was the grandparent Josie who was at the homestead at that time (linked further back), when the local newspaper has stated multiple times that it was grandmother Shannon who was at the homestead at that time (links already provided).