Dominique Bayens

Tell me more about that.

How could you feel it?

And did you get the sense at that point that he was like this guru and Tony was maybe a follower of him?

In 2006, Tony bought a caravan and parked it behind the blue farmhouse Simon and Chantel were renting.

When Tony made the odd trip up to Perth to visit his brother, Joe says he'd complain about the EMFs, those electromagnetic frequencies that we heard about when the power transformer was installed next to the blue farmhouse.

One person that I spoke to who had met Tony mentioned that he spoke about the idea of an Armageddon day or he had kind of doomsday beliefs.

Was that something that he ever talked with you about?

Did he struggle with depression or any other kind of... You know, I look back and often think that and I don't think he did.

A month before he vanished with the others, Tony spoke to Joe about starting up a new lawn mowing business.

He even outlaid precious cash to buy a ute for it.

But then, without explanation, he sold the ute and, as we know, disappeared.

The last time Joe spoke to Tony, he got a call from his mum just days before his brother vanished.

Tony was at their house and told them he was leaving, but he wouldn't say where he was going.

how did he sound?

Was he excited or?

So he never mentioned Brazil to you?

Tony's last known movements are just as confusing to Joe as they are to me.

One theory is that on the 15th of July 2007, Tony caught a train up to Perth under a false name and his driver's licence was used to check into a backpacker's in the inner city suburb of Northbridge.

Later that evening, he ordered a pizza from King's Park.

a popular tourist spot which overlooks the city.