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Victorians are being urged to stay indoors.

The state is bracing for its worst fire conditions ever.

February 7, 2009.

The heat wave prepares to go out with a bang.

It's an incredibly hot, dry, and windy day in Victoria. And in the town of Churchill,

in the Latrobe Valley, a bushfire sparks. This bushfire is one of 400 fires that will

rip through the state that day on what will soon be dubbed the Black Saturday bushfire is one of 400 fires that will rip through the state that day,

on what will soon be dubbed the Black Saturday bushfires, collectively considered one of Australia's worst bushfire disasters.

But in this particular fire, the Churchill fire, 36,000 hectares of land are destroyed,

150 homes raised, and 10 people are killed. Then, days after the event itself,

a 39-year-old man is charged with arson.

A local man named Brendan Sokoluk is charged with arson causing death.

The crown argued he was a cunning liar who created a web of deceit as to why he was in the area.

And three years later, in 2012, Brendan Sokoluk is found guilty of deliberately lighting a bushfire that killed 10 people on Black Saturday.

He was sentenced to 17 years and nine months in jail. In the end, the jury decided

Sarkalak was an arsonist intent on wreaking havoc on one of the worst days in Victoria's history.

It's a story that gives some small insight into just how devastating arson can be. And arson is the topic of today's episode of Criminal Psychology, our special four-part

series on All in the Mind.

So we want to know what drives someone to light fires like this.

It's a very small subsection of arsonists who actually get caught and that skews our understanding of who they are

and what their motivations are.

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