According to the newspaper's account, a meeting was set up at the Hotel Marienlyst in Helsingor a week after Awlaki's death in an attempt to mollify Storm. The newspaper has obtained a nine-minute recording of that meeting - made by Storm on his cell-phone.

Storm is heard talking to a man with an American accent by the name of Michael, who acknowledges Storm's work for the PET and CIA.

"He was my mentor. He was my sheikh, he was my teacher, he was a friend of mine. But (because) of the evil in him, I took the step," Storm told the American.

'Michael' says at one point: "I want you to understand - this is a team - it was all a team effort - a team from my organization - from me, who are here with you guys, from Jed (apparently Morten Storm's previous U.S. contact)......"

He adds that Storm's contribution was known to senior U.S. officials - adding: "I'm talking about the President of the United States. He knows you, he knows you. So the right people know your contribution. And we are grateful. "

But 'Michael' maintains in the conversation that it was a parallel operation that led to locating Awlaki.

There is no way of confirming Michael's identity as a U.S. official. But in a subsequent recorded telephone conversation from August, a PET agent code-named 'Olde' said he understood Storm's frustration and would try to get him some reward money.

In a statement made Saturday to Jyllands-Posten, the head of Danish intelligence, Jakob Scharf, said: "For the sake of PET's operational work, PET cannot and will not publicly confirm whether specific individuals have been used as sources."

As for Storm, he maintains a Facebook page which suggests he is living in a town in south-east England. Among the messages posted in the last few days, a link to the theme song for the new James Bond movie, with the comment: "Feels related."

According to posts on an Islamist forum in the past 24 hours, 'Murad's' former "brothers" in Luton, a town in England where he once appears to have had a business, have not forgotten him.

One wrote: "This scumbag lived in Luton and mixed with brothers for a few years and was an agent all along."

Another commented: "Murad was always a Saudi Salafy....Anyone who a had a one to one knew he was Salafy to the core."

And a note of caution from a third: "He was such a loud mouth that nobody wanted anything to do with him. He would come out with the most absurd claims."

Maybe only Michael, Jed and a few PET agents know otherwise.