Police hunting the killer of two teenage girls from Neath in South Wales, murdered in 1973, are turning to the internet to resolve the crime.
South Wales police force has pasted clues and facts regarding the violent murders, in which two teenage girls were raped and strangled, on their website in the hope of jogging someone's memory about the incident.
"The fact that the murders occurred many years ago is irrelevant to the families or friends of these young girls," said Detective Inspector, Paul Bethell, who is leading the investigation.
The crime remains unsolved, but a DNA screening test launched last year and a reconstruction on BBC's Crimewatch UK programme created new leads.
"People take more notice of things on the web, which they can read and trawl through in their own time, than they do of the news when they're preoccupied eating their dinner or chatting," said a spokesperson for Crimewatch UK.
The site contains pictures and factual information which police hope will bring forward new witnesses.
But officers will have to wait to monitor the site's success, as many prospective witnesses will not be part of the 'internet generation'.
"The site has been widely publicised in South Wales and we just have to hope the right person will see it," said a spokesperson at the South Wales constabulary.
To date, detectives have questioned 30,000 people in connection with the murder.