A man who was accused of shooting his wife believes he has proof the attack on the World Trade Center's Twin Towers on September 11 is linked to the George Bush administration. Kurt Sonnenfeld was working for the US Federal Emergency Management Agency, an organisation tied to the US Department of Homeland Security, when the terrorist attack on the World Trade Center took place. 7 Kurt was arrested for Nancy's murder in 2002 Credit: Getty Images After the planes crashed into the building, Kurt was given unrestricted access to ground zero - the site where the buildings once stood.

Armed with camera gear, the 39-year-old was asked to film everything he saw.

His documented evidence was supposed to form part of a report about what happened - but he never handed back the footage.

His life began to unravel in the following months and years, leading to the death of his wife.

She was found dead on a couch in the home the pair shared with a bullet wound to the back of the head.

Fifteen years later, the now-54-year-old is on the run in Argentina.

7 Kurt was employed to film the Twin Towers scene to collect evidence Credit: PA:Press Association

The US government wants him back in the country.

Officially, they say he’s wanted over the murder of his wife, but he believes it’s something far more sinister.

He says they want to silence him over what he saw beneath World Trade Center 6, evidence he is convinced paints the Bush Administration as big players in the deadliest attack on American soil.

As police arrived at Kurt’s home, they heard him utter the words “I can’t believe she shot herself”.

When they gained access to the couple’s home on New Year’s Eve in 2002, it was obvious that Kurt had been drinking.

He had blood on his hands and alcohol on his breath, police told GQ.

They said in an upstairs room they found Nancy in red underwear, still breathing, but barely.

They rushed her to hospital with part of the bullet still protruding from the back of her skull.

She died, aged 36, the following morning.

7 Kurt has queried why the seventh tower collapsed because it wasn't hit by a plane Credit: Getty Images

A cryptic note was discovered in the couple’s bedroom.

It appeared to be a suicide note.

On it, Nancy had written: “What indeed is finally beautiful except death and love. Kurt, please get help.”

The word love had been crossed out.

Nancy’s fingerprints were on the gun but Kurt was taken in for questioning.

He was charged with murder and was due to appear in court in June 2002, but the charges were dropped.

He fled because of a feeling it wouldn’t be the last time police came asking questions.

His instincts were spot on.

In 2003, a year and a half after his charges were dropped, a judge signed a new warrant for his arrest.

When police went looking, they realised he was gone.

Kurt met and married a woman in Argentina shortly after arriving and the pair now have two girls.

The US Government has tried to extradite the former FEMA staffer unsuccessfully.

7 Kurt was accused of killing his wife Nancy and the case has been opened and closed four times - in favour of Kurt

Part of the reason for that is Argentina’s strict opposition to the death penalty.

Kurt could face execution in the state of Colorado if found guilty of Nancy’s murder.

What did Kurt see?

Sporting bleached blond hair, Kurt wove his way through the rubble of Manhattan’s downtown financial district.

He shot hours of footage but never handed it in.

Of particular interest was what he found beneath World Trade Center 6.

He says inside the building he came across a vault that had been cleared of its contents before the planes struck.

In a documentary filmed in Argentina, Kurt said the discovery is proof that America knew the attacks were coming, at the very least.

7 Nancy was found with a bullet in the back of her head

“One thing I’m certain of is that agencies of intelligence of the United States of America knew what was going to happen and at least let it happen,” he said.

“Not only did they know it was going to happen, but they in fact collaborated.”

It is given weight by a similar discovery on a basement door below World Trade Center 4.

According to a New York Times article, the door to a vault was still intact but it appeared as if somebody had tried to gain entry.

Behind the vault door were nearly a thousand tonnes of silver and gold.

Kurt is a conspiracy theorist and not only because of what he saw.

He says he has the most trouble understanding how World Trade Center 7 collapsed despite suffering no damage.

“To me, the most suspicious thing of all is what happened to building seven at the World Trade Center,” he said.

“This building was not hit by a plane.

“It didn’t have any structural damage ... but, amazingly enough, building seven fell in a perfect textbook type implosion, taking only 6.5 seconds for a 47-storey building to fall completely into its own footprint.

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“This to me indicates there was absolutely no resistance between the floors when the building collapsed.”

‘He admitted killing his wife’

Robert Dreyer and Damian Whitehead shared a jail cell with Kurt Sonnenfeld in the days after Nancy’s death.

They said that Kurt, from Denver, US, initially denied the charges against him but later admitted to killing his wife.

In his only interview with US media since moving to Argentina, Kurt told GQ he could not be certain if he ever met the pair in jail.

“Could’ve met ‘em. I certainly didn’t make any friends,” he said.

Their testimony doesn’t help Kurt’s case.

Other evidence collected at the scene also works against him.

7 Paula, Kurt's current wife, is from Argentina Credit: CBS

Police say when they attended to a 911 call, they found Kurt with blood on his hands and blood spatter on his face.

His defence team argued an official line that he embraced his wife after hearing the gun go off and she “coughed and sneezed” in his face.

The problem with that is Kurt told GQ it didn’t happen that way.

He said he put his hands on his face moments after tending to his wife and the “spatter” was simply dried blood.

The questions will continue to come but, as long as he is in Argentina, he will never have to answer them officially.

In the documentary, he says he is ready for the harassment to stop.

7 Kurt says the vaults in the building looked as though someone entered and cleared them - suggesting the George Bush Administration knew about the attack in advance Credit: Getty Images

“At least four times has my case been looked at by a judge and been decided in my favour yet the US government continues and continues,” Kurt added.

“What we want now is for the US government to cease what they’re doing.

“My wife and I now have two beautiful daughters born here in Argentina.

“I now consider myself Argentinian.

“Of course I miss my (family) very much.

“I miss the mountains of Colorado.

“But to me, if I had a chance to go back to the United States, I don’t believe I would.

“I prefer it here.”