An email from a woman calling him her boyfriend and saying she is ready to die for him,a book on Mahatma Gandhi he bought in a Mumbai mall,a post-midnight visitor to the hotel coffee shop such are the disparate details about David Headley that investigators are trying to piece together.
After fresh evidence from the FBI,investigators have questioned more than 200 people,including employees and managers of hotels,guest-houses and cyber-cafes visited by Headley in several cities but are still unsure of the purpose and pattern of his nine trips from 2006 to 2009.
But probe agencies,primarily the National Investigation Agency (NIA),have received at least two post-paid mobile numbers used by Headley in India; around a dozen Internet Protocol (IP) addresses and several e-mail IDs used by him as well as by women who seemed to be in regular touch with him during his trips to India.
After tracing several computers used by Headley who was arrested in Chicago last month investigators are trying to probe an IP address used by him in Bangalore and one in Meerut that was used by one of his women friends to send him an email.
What has confounded investigators is the fact that theres no evidence of Headley having visited Bangalore and investigations in Meerut have also yielded little in terms of identifying the woman.
What is puzzling investigators is a string of what they call romantic e-mails received by Headley. While some are unsigned,others end with a capitalized initial. The e-mails to Headley mention dinner dates,a proposed trip to Shimla and motor bikes being hired for trips.
Sources say that one e-mail mentions how the sender (the woman) has spoken to her parents about her American boyfriend and that she was prepared to die for him.
While there is confirmation about no women having checked into hotels with Headley,an employee in a cyber-café used by him in Pahar Ganj,New Delhi,has claimed to have seen Headley seeing off an attractive girl. The Special Branch of the Delhi Police is trying to trace this person,believed to be an Indian in her early 30s.
Investigators have also found that in the Mumbai Trident,Headley had a mysterious post-midnight male visitor in the coffee shop. And that he frequented a bookstore in a Mumbai mall from where he purchased a treatise on Mahatma Gandhi. Eyewitnesses have said that Headley was usually seen carrying a camera.
Call Detail Records (CDRs) of over 100 mobile phone numbers are being scrutinised and records of the handset used by Headley have revealed that over a dozen calls were received by him from Pakistan but none has been linked so far to anyone involved in the terror network.
Intelligence sources say that some Pak telephone numbers used by Headley have been provided by the office secretary in the immigration consultancy service that he and his associate Tahawwur Rana ran in Mumbai.
Several calls were made by Headley from Delhi to Mumbai,including some to Rahul Bhatt,to his landlady in Mumbai and to the US Consulate. Theres also confirmation about Headley frequenting a particular public call booth in Mumbai from where he again made calls to his landlady and the US Consulate.