Could a shy, mother of three be a leading figure in the al-Shabaab group, responsible for the Kenyan mall siege? Samantha Lewthwaite, from Aylesbury in Buckinghamshire, is believed to have been one of the terrorists who attacked the Westgate Mall in Nairobi, killing at least 62 people.
The 29-year-old converted to Islam before marrying local man Germaine Lindsay. She was widowed in 2005 as her husband was one of the 7/7 suicide bombers. The question is though, where is she now? Divya Kohli reports.