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On a July morning in 1992, British man Andre Hanscombe's 23 year old partner, Rachel Nickell, was stabbed to death in a London park.

Their two year old son, Alex, was found crying next to her body.

The murder received massive coverage in British newspapers, and a photo of Rachel with a wide smile and flowing blonde hair became a very familiar image.

A man called Colin Stagg was charged with the crime, and was demonised by the press, though he was later acquitted of the murder.

For many years Andre was so convinced that Colin Stagg was guilty that he even wrote a book pointing the finger at him.

However he apologised after the Metropolitan Police used advanced DNA techniques to identify another man as the killer.

In 2008 Robert Napper was found guilty of killing Rachel - 16 years after the murder took place.

It was revealed that Napper was a paranoid schizophrenic who had been confined to a psychiatric hospital since 1996, and that the police had been warned about him before Rachel was killed.

Today Andre Hanscombe remains angry about the police investigation. He wants compensation and a public apology from the London Metropolitan Police - a fight he is now taking to the European Court of Human Rights.

Outlook's Jo Fidgen spoke to Andre about the impact Rachel's murder has had on his and Alex's lives.

The Metropolitan Police Service gave this statement:

"The MPS has apologised unreservedly for failings in the investigation into Rachel Nickell's murder.There has already been a payment made to Alex Hanscombe from public funds for the impact of his mother's murder. Having considered all relevant factors the Metropolitan Police Service has made the difficult decision not to compensate Mr Hanscombe or pay his legal costs."