Detectives hunting the killers of a Birmingham mother who was burned alive 15 years ago believe DNA could finally solve the mystery.
Tracey Mertens was looking forward to Christmas and starting a new life with her young children and partner after leaving the city.
But when she returned to her old home in Nechells, on December 23, 1994, she was blindfolded and bundled in to a car by two men.
The 31-year-old was then driven to a churchyard where she was found badly burned and dying.
Her family will appear on TV next week to make an emotional plea for help.
The man leading the investigation is convinced that people in Birmingham have information which can bring the killers to justice.
Det Chief Insp Paul Bailey said he would protect witnesses and a £30,000 reward is still on the table.
Police now say they have a DNA profile which will allow them to eliminate any suspects.
“I firmly believe that there are people who knew in 1994 what had happened to Tracey, why she had been targeted, and who lay behind it,” said Det Chief Insp Bailey.
“It could be that changing friendships or allegiances mean that there is someone out there who no longer wants to protect the people who dragged a defenceless mum out of their home and set fire to her.”
Police are convinced that the killing was linked to Tracey’s boyfriend, Joey Kavanagh, who was the father of their two children.
He was a drug addict and owed a substantial amount of money.
Tracey had come from her new home in Rochdale to pick up a benefits book to help pay for presents
When the two men thought to have killed her banged on the door of her home Cattells Grove, they asked: “Where’s Joey?”
She was then forced in to a “scruffy” yellow Ford Escort and found five hours later outside a church in Eaton, near Congleton.
The dinner lady managed to give police an account of her abduction but died the next day.
Next Monday’s BBC Crimewatch programme will feature a reconstruction of the events and a plea by Tracey’s daughter Kelly Kavanagh, now aged 26.
Det Chief Insp Bailey added: “We are hoping that viewers can provide us with some crucial answers as to why a loving mum, with no known enemies, should have her life taken from her in such a callous way.
“Her children have to live with this every Christmas.”
Anybody with information should contact police on 0845 458 0000 or Crimestoppers on 0800 555 111.