The son of Rachel Nickell will not receive any compensation from police despite failings that could have prevented her murder, it has emerged.
Scotland Yard said it had been decided after "careful and detailed consideration" not to make a payment to Alex Hanscombe, who as a toddler witnessed the slaying of his mother.
It comes despite the Metropolitan Police publicly acknowledging mistakes that saw her killer Robert Napper free to roam the streets, despite a tip off that he was a rapist.
Mr Hanscombe was just two-years old when Napper stabbed his mother 49 times during a brutal sex attack.
Napper, a deluded killer and serial rapist, could have been caught as far back as 1989, when his mother phoned police to tell them her son had confessed to a sex attack.
But police could not trace the crime and did not interview him or collect any DNA.
He went on to commit at least four more rapes before killing Miss Nickell on Wimbledon Common in July 1992.
It was only after he savagely killed and mutilated another young mother and her daughter that he was finally arrested.
He was convicted of the murders of Samantha Bissett and four-year-old Jasmine in 1994 and sent to Broadmoor.
But it was not until 2004 that a DNA link between Napper and the body of Rachel Nickell was identified.