The urge to kill has been a subject of intrigue for decades - especially when it comes to serial killers. And Martin Bryant might just be one of the most sinister of all.

Now footage of his police interview is going viral - including the exact moment he gave himself away.

And people are terrified by the video...


While the crimes of those who kill are utterly heinous, something about the darker side of humanity seems to intrigue many of us.

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Why would anyone want to kill another human being? Why do they think they have the right to take someone else life away from them?

The questions are endless.

Names such as Ted Bundy and Charles Manson are enough to make anyone feel uneasy...

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Serial killers have struck up terror in society for decades, so it's no wonder that many of us are fascinated by what causes them to kill.

In recent years, however, this intrigue seems to have only escalated.

The subject of murderers, in particular, serial killers, has become the center of countless true-crime documentaries and films.

It's a feat that Netflix, in particular, has gotten very good at.

The streaming giant's series, Making a Murderer, arguably skyrocketed everyone's fascination with the overarching true crime genre. The story dealt with a man who may or may not have been wrongfully imprisoned for the murder of car photographer, Teresa Halbach.

Ted Bundy became the focus of a Netflix project, too.

Bundy is one of the world's most notorious serial killers, who confessed to killing at least thirty young women from 1974 to 1978.

Many of us are curious about what motivates their cold and calculated crimes.

And these monstrous killers have long been the focus of countless psychological studies.

The sheer conflict between horror and humanity has fascinated many professionals...

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Why anyone would want to inflict such horror on another human being is truly a mystery.

There's one huge factor that physiologists have been unpicking for decades...

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Antisocial Personality Disorder (otherwise known as sociopathy).

It's a trait shared amongst most serial killers.

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The personality disorder essentially creates reduced connectivity to the emotional system in the brain - meaning that these individuals can exhibit a wide range of behaviors including lack of conscience, inability to follow rules, tendency to lie, and manipulation.

Nature or nurture?

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The long-standing debate over what exactly causes psychopathy is still ongoing, with a set cause not yet determined.

But what makes serial killers even more chilling...

Their psychopathic tendencies can allow them to blend well into society - leaving many people unsuspecting.

These individuals often go unnoticed in society...

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An investigation into serial murder by the FBI’s Behavioral Analysis Unit in 2005 concluded that “they are not monsters and may not appear strange. Serial murderers often have families and homes, are gainfully employed, and appear to be normal members of the community." Their "humanness" is one of the aspects that makes them so compelling.

It's also one of the reasons why the police rarely catch them early...

And why they can go on killing, undetected, for years - sometimes even decades.

And Australian killer, Martin Bryant, followed the exact same trajectory.

The mass shooter killed thirty-five people in a spree shooting in Part Arthur, Tasmania, in 1996.

Bryant was an intellectually disabled man who shot and killed thirty-five and injured a further twenty-three in the Port Arthur massacre.

He is currently serving thirty-five life sentences, plus 1035 extra years at Risdon Prison in Hobart.

Bryant has the IQ of an eleven-year-old.

But fully believed he could outsmart police.

In a newly resurfaced video, Bryant's interview with police is going viral.

It's super creepy and not for the faint hearted.

But there's one moment that's really got the internet talking.

When Bryant accidentally gives himself away to police after he believes the recording has stopped.

​At the end of the interview, Bryant says, "I'm sure you'll find the person that caused all of this."

He then creepily points to himself and mouths, "me."

The police officer replies, "I don't find that a very funny statement at all, Martin, to be quite honest."

While Martin giggles, "You should have put that on recording."

But the police officer confirms, "Oh, it's still recording at the present stage."

"So that is on recording."