At a second meeting in Vienna, Storm showed Aminah a short video recording made by al-Awlaki, who was dressed in white robes in front of a pink background with a floral motif.

"This recording is done specifically for Sister Aminah at her request ... I pray Allah guides to that which is best for you in this life and in the hereafter. And guides you to choose what is better for you regarding this proposal," al-Awlaki said, in a section posted on the Jyllands Posten website.

Storm said Aminah burst into tears when she heard these words.

She then recorded two short videos for al-Awlaki. In the first video, she wore a full black veil with just her face visible. Speaking in heavily accented English, she said: "I will accept everything that is needed to do now this way that I have chosen and inshallah Allah will help us."

In the second video, Aminah took off her veil and said: "Brother, it's me without the scarf, so you can see my hair ... I hope you are happy with me, inshallah," according to Jyllands Posten.

At the same meeting, Storm handed Aminah a suitcase that had been rigged with a tracking device.

On May 18, 2010, Storm traveled to Vienna a third time to buy Aminah's plane ticket to Yemen and hand over $3,000 in cash on behalf of al-Awlaki, he told Jyllands Posten. Aminah and the suitcase arrived in Sanaa at the beginning of June, and Storm's work was done.

Two days later, one of his Danish intelligence handlers texted him: "Congratulations brother, you just got rich, very rich." Jyllands Posten published the text Sunday on its website.

Storm said that on June 9, 2010, a CIA agent handed him a briefcase at a Crowne Plaza hotel near Copenhagen, Denmark. "What's the code?" Storm asked. "Try 007," the agent responded. Inside was $250,000.

But the plot didn't work. Aminah spent several weeks in Sanaa, and then a messenger arrived to arrange her travel to meet al-Awlaki. For security reasons -- among them concerns about tracking devices -- she was told to leave her suitcase behind.

Aminah and al-Awlaki married shortly afterward. Al-Awlaki sent Storm a message thanking him for arranging the marriage. She had not only lived up to expectations, al-Awlaki wrote in a message viewed by Jyllands Posten, but was ".... much better!"

Last year, when Storm returned to Yemen on what he described as another mission for Danish intelligence, he and al-Awlaki exchanged several messages. In one obtained by Jyllands Posten, al-Awlaki requested that Storm send products from Sanaa for his new wife, including hair conditioner.

Al-Awlaki was eventually tracked down and killed in a drone strike at the end of September of last year. Storm insists it was his work that finally tracked down al-Awlaki -- using a messenger carrying a USB memory stick that included a tracking device.

But in a conversation taped by Storm at a Helsingor hotel late last year, an American called Michael insisted that a separate stream of intelligence had led to al-Awlaki.

Storm didn't believe him. "I am convinced that the CIA seized the messenger ... but the Americans apparently won't recognize that it was an agent of PET and the small country, Denmark, which led to the detection of Anwar," he told Jyllands Posten.

After al-Awlaki's death, Aminah continued to communicate with Storm through encrypted messages, unaware that he had been working with Western intelligence. A few months ago, she said she was working on Inspire, the online magazine of al Qaeda in the Arabian Peninsula, or AQAP.

She also suggested she wanted to be involved in a terrorist attack, according to Jyllands Posten.

"I would be making a martyr operation, but Sheikh Basir (al Wuhayshi, the emir of AQAP,) said that the sisters so far (can) not carry out operations because it will mean a lot of problems for them ... so I can not perform operation. ... I want to be killed the same way as my husband was ... Insha'Allah," she wrote.

Aminah's whereabouts today are unknown. CNN has been in touch with Storm, who is in hiding after several death threats from militant Islamists who were once his comrades.