WWW- AMERICAN detectives hoping to question Neil Entwistle in person about the murder of his wife and daughter in Massachusetts have also begun inquiries into the Briton's possible involvement in the murky world of internet pornography.
Officers have until now been only in telephone contact with Mr Entwistle, who has been staying with relatives in Nottinghamshire after leaving the US at around the time his wife, Rachel, and nine-month-old baby, Lillian, were killed.
State troopers yesterday took boxes from the family's house in Massachusetts. It is believed that they are looking at computers owned by Mr Entwistle.
One of the sites being investigated, millionmaker.co.uk, was shut down three days after the murders. The company promised assistance to those with an adult internet business for a £50 joining fee and and £14 monthly fee. The site also included links to three other websites, including one said to be associated with SRPublications - the same name used on an alleged eBay scam selling the get-rich-quick software.
Police are investigating how Mr Entwistle was able to rent a five-bedroom home worth £300,000 when he was unemployed and looking for work.
Complaints about the eBay sales have been listed on the internet, including one from a woman called Anne who said she agreed there was a link to eBay scams "as the user SRpublications". She wrote: "SRPublications activity stepped up massively over the holidays and a really large scam has been organised that has earnt SRPublications thousands of pounds in a couple of weeks. It was a very well run and well timed scam, using the holidays to buy extra time, and I think was planned in advance.
"Some of the software was being sold under the name Neil Entwistle, some under the name Rachel - whether that means both were involved or whether only one, I don't know," she continued.
The site was apparently closed by eBay within weeks.
Another site, Embedded New Technologies, had the registration listed on Tuesday to Neil Entwistle in Droitwich, the same registration address as the family's personal website. The registration for the sites is reported to have changed to an address in Tremont Street, Carver. Rachel Entwistle's parents live in a street of that name in Carver, Massachusetts.
Martha Coakley, the district attorney, said that state police and local detectives were looking into Mr and Mrs Entwistle's finances as well as personal lives.
Officers have been in telephone contact with Mr Entwistle, 27, whom they describe as a "person of interest", but have not yet seen him face to face. It may be that Mr Entwistle decides to go back to the US with the officers voluntarily. They have not asked for any international arrest warrants to be issued or for help from police in Nottinghamshire.
A state trooper told The Times that Mr Entwistle "is above all the other suspects because he is the spouse and father of the deceased. There is no one we are seeking to talk to more than him. "When police went to the house it was dark and locked up so whoever did it locked the house after them."
Ms Coakley insisted that Mr Entiwistle was still only "a person of interest" in the case. She said earlier that the "best guess" was that Mrs Entwistle, 27, and Lillian died between 1am on Friday and early Saturday. Mr Entwistle is believed to have caught a flight to London from Logan on Friday evening.
But she added: "It's still kind of a blurry timeline, whether he was still in the country or not when the shooting occurred."
British authorities have not been asked to help the murder inquiry, as the Americans are confident they can contact Mr Entwistle as necessary.
The bodies of Rachel and Lillian were discovered on Sunday evening after friends arrived for a dinner party on Saturday night at the snow-covered home and found it in darkness. They called police, who broke in and found Mrs Entwistle and her daughter shot dead and wrapped in blankets on the master bed.
