Officers investigating the murder of a Sheffield prostitute say they are following new leads after an appeal on national television.
Michaela described her killer to police while she lay dying
Michaela Hague, 25, 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 received more than 65 calls after an appeal on the BBC's Crimewatch programme.
Hunt for killer
A police spokesman said more than 60 people had contacted them with "good information" within an hour of the programme being aired.
He confirmed officers were now following several lines of inquiry.
It was the second time South Yorkshire Police had appeared on the programme in the hunt for the killer.
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.
She told Pc Richard Twigg her attacker was white, clean shaven with short fair hair.
He was of medium build, about 38, 5ft 8in tall with glasses and wore a wedding ring.
He also had a gold sovereign ring on his left hand and a thumb ring with a dolphin on it on his right.
He drove a blue Ford Sierra car with a roof rack and has been seen by other prostitutes in Sheffield in the past few months.
Despite numerous appeals for information in the three-and-a-half years since her death, he has never been found.