Whitney Houston attends the Pre-Grammy Gala & Salute to Industry Icons in Beverly Hills, California, in this file photo taken February 12, 2011. Houston has died, according to her publicist on February 11, 2012. She was 48. REUTERS/Phil McCarten/Files (UNITED STATES - Tags: ENTERTAINMENT OBITUARY)

 As Whitney Houston’s drugs-ravaged body lay cold under a sheet in her suite at a Beverly Hills hotel, elsewhere in the building a Grammy Awards party was being thrown by her long-time mentor Clive Davis.

Later, while guests including Britney Spears, Diana Ross, Jane Fonda and Sir Richard Branson were swanning out of the front entrance, Houston’s corpse was being hustled ignominiously out of a side door.

It’s difficult to imagine how the singer’s demise - in a bath last February - could have been more melodramatic. But now startling new claims suggest an extraordinary twist.

A Los Angeles private investigator, who has probed celebrity drugs cases and suspicious deaths, sensationally alleges that 48-year-old Houston was murdered by two thugs sent by high-powered East Coast drug dealers to collect on a $1.5 million debt.

Former police officer Paul Huebl says he has presented the FBI with what he insists is compelling evidence that Houston was targeted by the two men, who were part of a group of scruffily dressed hangers-on. He says the pair were unknown to most, but not all, of Whitney’s huge entourage, which repeatedly visited her hotel room in her final days.

Incredibly, Huebl even claims the men were captured on the hotel’s CCTV going into the singer’s suite - No. 434 - at the luxurious Beverly Hilton around the time she died.

Whitney was discovered face down in a scalding bath by her assistant, who had left her for just 45 minutes while she went out to run errands. When paramedics arrived, Whitney was unresponsive. They performed CPR for about 20 minutes before declaring her dead.

A coroner ruled that the death of the greatest singer of her age had been due to accidental drowning, with heart disease and chronic cocaine abuse listed as contributory factors. An ‘acute dose’ of cocaine was found in her system as well as a cocktail of other drugs, including marijuana and prescription sedatives.

As theories swirled about Whitney’s untimely death, it emerged she was in so much debt that she was having to ask for $100 handouts from her friends. (Her hotel suite had been paid for by Clive Davis.)

But could her mountain of debt really have led to her death?

I phoned Paul Huebl at his California office yesterday and he explained the scenario he insists accounts for unexplained details in the official coroner’s report.

He also told me about new evidence he has unearthed.

Huebl will not say who hired him to look into Houston’s death but does confirm it is not Pat Houston, Whitney’s sister-in-law and one-time manager who claimed the star was the victim of a murder conspiracy - only to suddenly, and unaccountably, change her mind.

Huebl tells me: ‘Every indication is that it’s a murder. I’ve got some evidence that is pretty glaring, and I’ve turned it over to the appropriate law-enforcement agency.’

Huebl says unnamed informants have told him that surveillance video footage exists of the two men he claims are involved, entering Houston’s suite shortly after 2.45pm on the day she died - February 11 - while her assistant was out.

He believes they demanded the money she owed their bosses, and when she refused to give it to them, ‘things got physical’.

Although Houston’s assistant informed police that the last thing she told the singer before she went out was to have a bath, Huebl thinks Whitney was thrown in the water by one or more assailants. And what might have started out as an attempt to scare her, ended in murder.

The evidence for the alleged struggle, he says, lies in the coroner’s report. The coroner, for instance, noted that a large area of skin on Houston’s lower back was burnt off - so-called ‘skin slippage’ - by the scalding bath water. The water was so hot that six hours after she died it was 33c (93.5f).

Even someone high on cocaine wouldn’t ‘willingly’ get into a bath that hot, says Huebl, who adds: ‘She obviously had “help”.’

As for the report’s revelations that Houston had injuries on her forearms and hands, Huebl claims these are ‘consistent with her having a pretty nasty struggle and consistent with classic defence wounds.

There were bruises on her arms and shoulders, a cut on her upper lip, scrapes to her nose and forehead, and lacerations to her scalp.’

In fact, the singer had so many injuries it looked as though she’d been in a boxing match, he says.

‘Call this an accident if you want, but it doesn’t make sense to me.’

He believes that after Whitney was killed, her assailants ransacked her suite, took money, drugs and jewellery, and left before her assistant returned.

Huebl, whose investigation was first reported in the National Enquirer, is by no means the first person to have been puzzled by Houston’s death and her bizarre behaviour in her final days.

In the early hours of her last day, a stoned-looking Houston was seen on her hotel balcony, shouting: ‘I’m tired of this s***!’

Some people have wondered if it was a cry of desperation from a superstar who realised her precious voice - with its famous three-and-a-half octave range - was gone for ever.

But Huebl believes it was a cry from the heart over the harassment she was getting to repay the money she owed her drug dealers.

He says he was told by an informant that Houston had earlier taken possession of a new supply of cocaine and been partying with a small group of people, including her killers, in her suite until around 4am. When she refused to pay them, they left and returned later that day with fatal consequences.

As Huebl notes, Houston had a ‘risky lifestyle’ including heroin and crack-cocaine abuse, and inevitably surrounded herself with others involved in that criminal world.

As to the identities of her alleged killers, Huebl clearly has his suspicions. However, he will say only that Houston’s alleged murder could have its roots in more than one state. He claims drug-world sources have told him that people from New Jersey and Georgia - states where Houston has lived - were involved.

He adds that he approached the FBI because it has no connection with the police force that undertook the original investigation and because it is responsible for cross-state crimes.

When I ask why Beverly Hills police have not acted on the allegedly damning hotel CCTV evidence, which presumably they must have seen, he pointedly says I should ask them. (Neither the FBI nor the Beverly Hills Police Department have commented on his claims.)

However, he told the National Enquirer he believed the police and coroner were ‘happy to sweep Whitney’s death under the rug, calling it accidental and closing their investigation’.

Huebl also believes that at least some of Houston’s entourage ‘know what happened’.

In April, Beverly Hills police concluded that foul play was not involved. Detectives based their decision on the coroner’s findings that the singer’s death was due to accidental drowning and, in part, the result of cocaine ingestion and a heart condition.

The 41-page coroner’s report found that Houston was submerged in bath water for nearly an hour, and that her personal assistant had last seen her alive between 2.35pm and 3pm.

So should we give any credence to Paul Huebl’s theory? Certainly, it’s easy to dismiss it as the product of a fevered imagination, or cynical publicity-seeking. Except that in Houston’s case, her life had become such a sordid train wreck that anything seemed possible by the end - including vengeful drug dealers prepared to maim and kill.

Her final public performance two nights before her death spoke volumes about how low she’d sunk from the days when the world and Kevin Costner swooned at every quivering note of I Will Always Love You in The Bodyguard film.

She staggered on stage at a tiny Hollywood club called Tru, drunk, puffy-faced and dishevelled, to sing a dreadful one-minute duet of Yes, Jesus Loves Me with soul singer Kelly Price.

Whitney ended up in a fight with another singer, then left with her hangers-on and blood trickling down her leg.

She spent the next night (her last) in the bar of her hotel, drinking heavily and treating staff and fellow guests to her trademark behaviour of wandering around, flailing her arms, doing handstands and burbling unintelligibly. The following afternoon she was dead.

Her long-time friend Robyn Crawford said afterwards: ‘I don’t know what kind of pressure she was putting on herself.’

While family members and close friends insisted Houston had shaken off drugs, others - including therapists who spoke to her relatives - claimed her loved ones had cynically ignored her drug abuse because they were relying on her as their breadwinner.

Houston was by her own admission ‘no angel’, however much her marketing people tried to manipulate her image.

Friends revealed that she was taking drugs before she even met Bobby Brown, the ex-gang member, convicted criminal and drug addict who became her husband and supposedly ruined her.

In 2006, a few months before the couple got divorced, Brown’s sister Tina sold shocking pictures of Houston’s bathroom in her mansion, which the star had turned into a crack den. Her teeth had fallen out from drug use, and she was so incontinent she was wearing nappies.

Associates told newspapers that Houston and Brown used to cruise the streets of New Jersey and Atlanta in chauffeur-driven limos, looking for crack.

In the Nineties, Whitney was reported to have paid $750 000 to one drug dealer alone.

According to U.S. tabloid Globe, she owed $1.5 million to drug suppliers when she died.

Whether or not the murder theory has any credence, Whitney’s death was a particularly pitiful end for a star who, thanks to her legions of black and white fans across the world, represented a colour-blind showbusiness world.

Her demise became a polarising moment in much of America. Amid the national grieving, some commentators condemned Houston as a disgusting junkie who squandered her huge talents and deserved no eulogies.

So could it be possible, as the FBI is now being asked to consider, that a similarly damning attitude dissuaded investigators from spending more time examining her depressingly sleazy death? - Daily Mail