Margaret Muller was repeatedly stabbed while running in Victoria Park in 2003 (Picture: PA/SWNS)

Police have issued a fresh appeal for information about the fatal attack of an American student who was knifed to death while jogging in London 20 years ago today.

Margaret Muller, 27, was repeatedly stabbed while running in Victoria Park, Hackney, on the morning of Monday, February 3, 2003.

However the case has never been solved, despite being featured several times in TV appeals.

Detective Chief Inspector Amanda Greig, of the Met’s Specialist Casework Team who look at unsolved murders, said: ‘It is now 20 years since Margaret’s shocking murder – an attack that left an indelible mark on the consciousness of a generation.

‘I know people may think that too much time has passed for someone to be held to account for this heinous crime, but that is simply not the case.

‘We are very keen to receive new information that, for whatever reason, someone has felt unable to provide previously.

‘For two decades, Margaret’s family have had to endure the agony of not seeing her killer face justice – this is something no family should have to live with and I urge anyone who can help to get in contact immediately.’

Margaret was found collapsed on a pathway between the rose gardens and the children’s play area in Victoria Park at around 8.30am.

It has been 20 years since American student Margaret was stabbed to death (Picture: Metropolitan Police / SWNS.COM)

Margaret was jogging in a park near her home when she was attacked (Picture: Metro)

She had travelled from America to study at the Slade School of Art, University College of London, and was living near the park.

A post-mortem gave a cause of death as multiple stab wounds.

Detectives want anyone who was in the park on the day of the murder who has yet to come forward to contact them.

They are also keen to hear from anyone who may have seen anything suspicious in or around the Gascoyne Estate on the day of the murder.

Margaret was an American art student studying in London (Picture: PA)

No arrests have been made in connection to Margaret’s murder (Picture: PA)

While detectives are retaining an open mind about the possible motive of the attack, current evidence suggests that Margaret could have been the victim of a failed mugging.

As a result of previous appeals, detectives concentrated their efforts around the Queen’s Gate entrance to Victoria Park.

They are particularly keen to trace anyone who witnessed a person walk past The Britannia pub, formally called The Victoria Park Inn, and enter the park through the Queen’s Gate entrance at around 7.10am on the morning of the murder.

A forensics officer at the scene in Victoria Park (Picture: PA)

Detectives say witnesses may recall a person sprinting through the Queen’s Gate entrance along Gascoyne Road and towards the Gascoyne Estate between 8.30am and 8.40am following the murder.

Anyone with any information is asked to contact the Met’s Specialist Casework Team on 0208 785 8267 or, to remain anonymous, call Crimestoppers on 0800 555111.

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It has been 20 years since Margaret Muller was stabbed to death while running in London.