The mysterious death of a Comanchero bikie in a luxury resort pool just months after he patched over from a rival outlaw club will be examined by a coroner after cops ruled out foul play. 

Jason Kemp was discovered floating face down in the private pool of a villa at the five-star resort, The Pearle of Cable Beach in Western Australia, about 12.10pm on Saturday.

Emergency services were called and rushed to the resort but Kemp, aged in his late 30s, could not be revived.

Kemp had an astonishing criminal history, with more than 700 entries listed under his name in court records. 

His heavily tattooed body was smeared with the slogans paying homage to his connection to the underworld, with the words '1 crime pays' scrawled down his forearm and 'respect few, fear nothing' inked across his face in large black font. 

He switched from the Rebels to Comanchero in 2021 after being savagely beaten by a club member in prison.

WA Police confirmed on Monday his death was being treated as non suspicious and a report would be prepared for the coroner. 

Kemp's extensive rap sheet includes pages of offences relating to driving, drugs, assaults, stealing, domestic violence and unlawful possession of weapons. 

Last year alone, he faced court twenty times for more than a dozen charges, which included grabbing someone's throat, possession of meth, cannabis, and prescription drugs. 

There were also string of road offences, including running red lights, riding a motorbike without a helmet, using a fake number plate and driving with drugs in his system. 

In 2017, he was jailed for holding his ex-girlfriend and her mother at gunpoint in a four-hour siege with police.

'It's actually quite amazing that he's been allowed in the community for this long,' state prosecutor Jason Chu said before his most recent prison stint.

Kemp had been staying at the five-star resort near the popular tourist beach at Broome, in northern WA, with his girlfriend.

The villa remained cordoned off by police tape on Sunday as investigators try to determine exactly what happened.

One of the last photos posted online of Kemp and a partner shows the smitten couple in October 2021.

Kemp can be seen wrapping his arm around his then-girlfriend, who had his name tattooed on her belly, as she put up her middle finger towards the camera.

It is understood Kemp has been a member of the Comanchero outlaw motorcycle club since mid-2021.

Before that he was a full member of the Rebels.

The switch, usually considered a great offence in bikie circles, occurred after he was savagely beaten by a fellow Rebel in May of that year inside Casurina Prison in WA.

Kemp, who was doing a stint for drug and traffic charges, was left with severe head injuries that required a lengthy hospital stay. 

WA Police said the bashing was a result of an internal dispute between the two club members and was not linked to tensions over the assassination of Rebels boss Nick Martin months earlier. 

Martin was gunned down by a sniper at the Kwinana motorsport complex, with a former soldier linked to the international mercenary group Shadows of Hope later pleading guilty. 

By July 2021, Kemp was blacking out his large Rebels forearm tattoo on photos he posted online.

Later that month he posted a photo showing the word 'Comanchero' inked onto his forearm over the old tattoo.