Detectives investigating the murder of a prostitute who was stabbed to death in Sheffield five years ago have made a fresh appeal to help find her killer.
It is five years since young mother Michaela was murdered
Michaela Hague, 25, was stabbed 19 times and dumped on wasteland at Spitalfields, near the city centre, on Bonfire Night 2001.
Ms Hague, who had a five-year-old son, managed to give a description of her killer but later died in hospital.
Police hope advances in DNA technology will lead to her killer being caught.
Ch Supt Paul Broadbent, who is leading the inquiry, said: "Five years down the line there is still a relentless desire, will and need to arrest the person who brutally attacked and killed Michaela.
"We have items of clothing that Michaela gave us at the time.
"We have other forensic opportunities and we have got CCTV footage that I am fully confident that in the fullness of time will assist us in identifying who killed Michaela."
Pc Richard Twigg wrote the killer's description on his hand
Mr Broadbent said when Ms Hague's killer was found he wanted to be the one to charge him.
Ms Hague's family were due to make their own appeal for information but Mr Broadbent said they were still "too devastated and it is still too raw for them."
Before she died Ms Hague told PC Richard Twigg her attacker was white, clean shaven with fair hair.
He was wearing a wedding ring and drove a blue Ford Sierra car with a roof rack.
Since her murder, detectives have pursued more than 10,500 separate lines of inquiry, interviews 7,400 people and eliminated 3,662 owners or drivers of Ford Sierra from the inquiry.
A man in a dark blue Ford Sierra was spotted driving away from the murder scene around the time of the attack.
Despite that work, a nationwide appeal on the BBC's Crimewatch programme and the offer of a £5,000 reward, Ms Hague's killer remains at large.