Nick McKenzie

Well, he's arguably Australia's best-known gangland figure.

He's certainly Melbourne's best-known gangland figure.

Came to massive attention in the gangland wars.

Initially, his friends were getting knocked off left, right and centre.

His best mate, Mario Condello, was murdered in an execution outside his house.

Graeme Kinneborough, the famous criminal, a.k.a.

the Munster, was also shot dead, executed at his house.

And there was a period where I think Gatto thought it was coming for him.

He was then...

confronted, according to Gatto's story, at the back of a restaurant by the most famous gangland hitman Andrew Benji Veneman.

There was a scuffle.

Gatto grabbed a pistol, which he said Veneman had, and he shot Veneman dead.

Gatto was charged with murder, and that became a very, very significant case.

But Gatto beat that charge on self-defense grounds.

So he's known for the gangland wars and his involvement in those and that of his so-called Carlton crew.

But really what he's done for the last 30 years is play his trade as the best known gangland fixer in Victoria's construction sector.

Well, two years ago, we began writing a series of stories.

We're still writing those stories two years later.

It was called the Building Bad series.

It was about allegations of significant organised crime and corruption in the construction sector across Australia, but especially in Victoria.