The gunman's girlfriend Marilou Danley (pictured) has been located and their home raided by police following the Las Vegas attack that left 59 dead and 527 injured

Las Vegas gunman Stephen Paddock's girlfriend Marilou Danley has been ruled out as a person of interest in the mass shooting attack that left at least 59 dead and more than 527 injured.

Authorities said later Monday morning that Danley is no longer a person of interest in the shooting and is currently out of the country, though it's unclear where exactly she is.

Police said Paddock had used Danley's slot card to gamble in the hotel, and that he was in Las Vegas for three days prior to Sunday's shooting.

Danley is believed to be an Australian citizen and previously lived on the Gold Coast in Queensland, Australia, for more than a decade with her former husband, an Australian man, who has since passed away.

She moved to the United States 20 years ago, according to one of her former neighbors who said she is originally from the Philippines, The Herald Sun reported.

Her now deleted Facebook page identified her as a 'proud mom and grandma who lives life to the fullest.'

Danley had described herself on her LinkedIn page as a 'gambling and casino professional' living in Reno, Nevada.

Authorities said later Monday morning that Danley is no longer a person of interest in the shooting and is currently out of the country, though it's unclear where exactly she is Police said Paddock had used Danley's slot card to gamble in the hotel

That social media page also listed her as working as a 'high limit hostess' at Club Paradise, Atlantis Casino in Reno between 2010 and 2013, but does not list another job since that year.

Records show that Danley and Paddock lived together in a three-year-old, two-bedroom home on Babbling Brook Court in the tiny desert community of Mesquite, which is 80 miles north east of Las Vegas near the Arizona state border. Record show the property cost $396,000 (£297,554).

Mesquite police said the home was vacant when authorities arrived to search it.

'It's a nice, clean home and there's nothing out of the ordinary,' the Mesquite police spokesman said. 'It's a regular neighborhood.'

The shooter's brother, Eric Paddock, told CBS News that Danley was his brother's girlfriend and that he had met her 'three to four times.'

'They might have got married, but I don't think they're married. She's just his girlfriend,' Eric said. 'She's a nice lady, I've met her three or four times. She's got a Facebook page, she sends my mom cookies.'

Police were initially searching for the 62-year-old woman after Paddock was confirmed dead early in the investigation. A Hyundai Tucson vehicle understood to be owned by Danley was also found by police.

NBC News reported that Paddock was married and going through a divorce or somehow splitting up with his wife, though it was not clear who that woman is or if it was Danley.

Police said Paddock (above) had used Danley's slot card to gamble in the hotel

The gunman's brother Eric told DailyMail.com that there was 'absolutely no indication he could do something like this.'

Adding: 'He was just a guy. Something happened, he snapped or something, he was just a guy.

'He has no political affiliation, no religious affiliation, as far as we know. This wasn't a terror attack.'

Local media said the gunman had also previously lived in Reno, Nevada, California and Florida.

Clark County Sheriff Joseph Lombardo said detectives had found the woman, who he described as Asian, 4 foot 11 inches tall and weighing 111 pounds.

Records show that Danley (above) and Paddock lived together in a three-year-old, two-bedroom home on Babbling Brook Court in the tiny desert community of Mesquite

“She is a nice lady. I've met her 3 or 4 times. She's got a Facebook page. She sends cookies to my mom,” gunman’s brother says of his wife pic.twitter.com/DTs69ZP7EO — CBS News (@CBSNews) October 2, 2017

The attack unfolded on Sunday night after a gunman on the 32nd floor of the Mandalay Bay hotel resort opened fire on an outdoor country music festival.

Revellers described hearing automatic rounds during the concert sparking mass panic and chaos.

Thousands fled as bursts of gunfire could be heard for more than five minutes. At least 59 were killed and 527 injured.

A motive for the horrific shooting has not been released by authorities.

Terrifying footage from the scene shows concert-goers reacting with confusion and then panic as the festival turns into a bloodbath around them.

Video from close to the stage shows people hitting the floor as other crawl to safety or run for their lives. Audio from further back in the crowd captured several bursts of sustained automatic gunfire.

Previously, the deadliest mass shooting had been an attack at an Orlando, Florida, nightclub that killed 49.

Before that, the deadliest shooting in the U.S. was the 2007 attack at Virginia Tech, in which a student killed 32 people before killing himself.