When Jordan Knights met Stephen Paddock just a few months ago, he left with an unremarkable impression of the man that would become America’s worst mass murderer.

The young Queenslander was travelling through the United States with his mother Amelia Manango and stopped in Las Vegas to visit Amelia’s sister, his aunt, Marilou Danley.

The family members spent time together in the city’s famous casinos and enjoyed several meals.

Jordan Knights spoke to 9NEWS today. (9NEWS)

Mr Knights was visibly shocked as he was shown video from the Las Vegas shooting. (9NEWS)

It was the first time any of Ms Danley’s relatives had met her partner.

The 23-year-old left Sin City with no concerns for the man that shared a home with his aunty.

Mr Knights with his aunt, Marilou Danley, just a few months ago. (9NEWS)

Ms Danley was not in America at the time of the shooting. (9NEWS)

“It seemed like he just looked after my aunty and that was it,” Mr Knights told 9NEWS today.

That was the last thought he gave to Paddock until last night.

Like many people he was alerted to something bad happening on the other side of the world through social media, and like many others he turned on the rolling US television coverage to follow the aftermath of the tragedy.

But unlike most he quickly realised he had a connection to the event.

When the name and photo of his relative flashed on the screen the first feeling was disbelief.

“Yeah once I saw that part on the news… I was like, what the heck. It was crazy,” Mr Knights said.

It was a few hours later when Las Vegas police confirmed the identity of the man who had sprayed a crowed concert with bullets, killing more 50 people, that Mr Knights accepted there was a connection between his family and the shooting massacre.

Ms Danely is not a suspect in the Las Vegas massacre. (9NEWS)

Marilou Danely.

He was, however, convinced that Ms Danley was not involved.

“I knew that she would have had nothing to do with it,” he said.

As police provided more details over the following hours, it became clear that Ms Danley was not in Las Vegas and not believed to have been an accomplice to the shooting.

Family in Australia, including Mr Knights' mother, have made contact with Ms Danley who was travelling in the Philippines.

They are of the believe that Paddock paid for her tickets and sent her away about two weeks ago.

Their thoughts have now turned to whether there were any signs Paddock could snap and execute such an evil act. But frustratingly there are none.

Like Paddock's own family, Ms Danley’s relatives are struggling to match the man they met with the man now being forensically analysed on news services around the clock.

Ms Danely on a Dubai holiday. (9NEWS)

“He didn't seem like he was the type of guy to do that. I didn’t even know he knew about guns,” Mr Knights explained.

A lot questions will be asked about Paddock over the coming days and weeks. Ms Danley will be able to answer some, but she’ll likely have many more of her own.

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