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.