Almost 20 years ago she vanished without a trace.
The disappearance of Newcastle prostitute Kellie Pratt has been linked to several high profile murder investigations and serial killers.
Yet what happened to Kellie, who was last seen talking on a mobile phone outside a pub in Norwich, remains a mystery.
Today Norfolk Constabulary, whose officers have been searching for Kellie for almost two decades, has renewed its pleas for infiormation.
And we are taking a look back at all the twists and turns in this mysterious unsolved case.
A spokeswoman for Norfolk Constabulary said: "This remains an unsolved case. Anyone with information should contact the Norfolk and Suffolk Major Crime Review and Cold Case Team."
Kellie grew-up in Byker and was a pupil at Heaton Manor School.
After leaving school she spent some time working at a care home in Gosforth.
She moved to Norwich in 1998 to be closer to her mum, following the breakdown of her marriage. But her personal life became dogged by addiction and crime.
Kellie developed a heroin habit and was eventually jailed for shoplifting.
Following her release from prison she turned to prostitution, working on the streets of Norwich.
2000:
Kellie was last seen at around 11.30pm on Sunday, June 11, 2000, talking on a mobile phone outside a pub in Norwich.
The vulnerable addict's disappearance sparked a huge investigation by Norfolk Constabulary.
A 30-strong team of officers followed up 880 leads and interviewed 270 people.
But all efforts to find Kellie proved fruitless.
And whether she had been murdered or gone missing remained a mystery.
2002:
In the years that followed, 28-year-old Kellie's disappearance was tentatively linked to a number of other high profile investigations.
In 2002 her family on Tyneside were informed after another young woman's body was found in a shallow grave in Hampshire.
It later turned out to be that of Hayley Curtis, a 23-year-old prostitute who went missing from the same red light district as Kellie in October 2001.
At the time police said they were not ruling out links between the two women's disappearance.
Det Insp David Greenacre, of Norfolk Police, said: "People who work in the red light area are vulnerable to all sorts of problems.
“It is too early to say if Hayley’s disappearance is linked to the case of Kellie Pratt."
However, in 2005 traveller Philip Stanley, who was 56 at the time, was jailed for Hayley's murder.
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Police also looked into links between Kellie's case and the unsolved murder of 16-year-old Norwich prostitute Natalie Pearman, but no definitive links were found.
On March 29, 2002 another prostitute, 22-year-old Michelle Bettles, disappeared from the Norwich red light district, prompting fears there could be a serial killer at large targeting the city's vice girls.
Michelle's body was found two days later but her killer has never been caught.
2003:
The following year there was further speculation that serial murderer Anthony Hardy, who became known as the 'Camden Ripper' could be linked to Kellie's case.
Hardy, from Norfolk, admitted killing Sally White, 31, Elizabeth Valad, 29 and Bridgette MacClennan in London.
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And the Metropolitan Police confirmed it was not ruling out links with other murders and unsolved cases, including Kellie's.
2005:
In 2005, on the fifth anniversary of Kellie's disappearance, police in Norfolk admitted they were fearing the worst.
A spokesman said: "Despite extensive enquiries, it is still unclear what happened to Kellie, although police and her family have for some time feared the worst. Work has been ongoing since Kellie disappeared five years ago.
“Last month officers carried out inquiries into whether advances in phone technology could offer any new opportunities for investigation but unfortunately it was established that this was not the case.
2006:
A year later the case took yet another sinister twist when it emerged that a ripper-style murderer was thought to be targeting prostitutes in the Ipswich area, just 40 miles from where Kellie was last seen.
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Police in Norfolk confirmed that they were liaising with Suffolk Constabulary as the force probed the death of Gemma Adams, 25, and the disappearance of her missing friend and fellow vice girl, Tania Nichol, aged 19.
Later in 2006 Norfolk Constabulary confirmed that a new senior police officer had been assigned to re-examine Kellie's case.
Steve Wright, dubbed the Suffolk Strangler, was eventually jailed for the murders of five women including Paula Clennell, who was originally from Northumberland. But again no links with Kellie were found.
2007:
In 2007 Kellie's ex-husband Michael Pratt sensationally wrote to the Chronicle saying he believed his former love had been murdered.
He said: "Kellie didn’t just vanish into thin air. She was murdered. I finished up hating Kellie when I found out she’d been on the game. One of the neighbours couldn’t hold on to her secret any longer and told me. But there was nobody who ever loved Kellie as I did. When Kellie died, a part of me died also and left what’s left of me carrying a huge load of guilt on my shoulders, which is something I’ll have to bear for the rest of my days.
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“There is not a day goes by when I don’t feel close to breaking down.
“Kellie was murdered and her body’s still out there on the outskirts of Norwich somewhere.”
So what is happening now?
In August 2008 Norfolk Constabulary joined forces with neighbouring Suffolk Constabulary to was set- up the joint Norfolk and Suffolk Major Crime Review and Cold Case Team
The specialist police unit investigates murders, missing people and serious sexual offences which remain unsolved. Its case files date back to the 1960s, and Kellie's disappearance is one of them.
Anyone with any information about Kellie Pratt is asked to call this team on 01953 423819.
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