Detectives investigating the murder of Sheffield prostitute Michaela Hague are to make another television appeal in the hunt for her killer.
It is more than three years since Michaela was murdered
The 25-year-old was stabbed repeatedly in the neck and back while working in the city on 5 November 2001.
She was found on waste ground at Spital Fields and died shortly afterwards in the Northern General hospital.
On Wednesday, detectives leading the inquiry will appear on the BBC's Crimewatch programme.
It will be the second time officers from South Yorkshire Police have appeared on the programme as part of the inquiry.
Ms Hague, who lived with her partner and five-year-old son in the Pitsmoor area of Sheffield, gave a description of her attacker as she lay in the arms of a police officer.
Despite numerous appeals for information in the three-and-a-half years since her death, he has never been found.