The family of a 14-year-old girl who was knifed to death in West Yorkshire has won a High Court bid to have a fresh inquest into her death.
Elsie Frost was killed in an underpass beneath a railway line near to Wakefield in October 1965.
Despite a massive manhunt and national coverage, there have been no successful convictions of anyone responsible for her death.
In 2015, after pressure from Frost's family, West Yorkshire Police re-opened the case, but in March 2018 the primary suspect - convicted child murderer Peter Pickering - died.
Senior judges sitting in London today ruled that there will be a fresh inquest into Elsie Frost's murder.
Speaking outside the Royal Courts of Justice, Elsie's brother Colin Frost said: "It's a massive step in the right direction, to say the very least.
"I don't think we really understand the enormity of it yet."
He continued: "We've come a long way for this. We've fought and fought and fought.
"We have had lots and lots of support from different people.
"It just feels as if we've vindicated everything."
"I'm totally elated with what we are going to achieve for Elsie. We are going to leave a legacy after all of this."
The judge added that the court's reasons for its judgment would be given at a later date.
Elsie's body was found near a railway tunnel in Wakefield on 9 October 1965. She had been stabbed several times.
The inquest implicated local man Ian Bernard Spencer but his criminal trial was thrown out of court due to lack of evidence.
New evidence was uncovered after Elsie's brother Colin Frost and sister Anne Cleave persuaded West Yorkshire Police to reopen the files pointed to Pickering, nicknamed the "Beast of Wombwell".
Police passed a file to the Crown Prosecution Service (CPS) and had been expecting a decision on whether or not to charge Pickering when he died.
The 80-year-old was locked up for more than 45 years after killing 14-year-old Shirley Boldy in Barnsley, South Yorkshire, in 1972.
At the time of his death, the sex attacker was also awaiting sentence for raping an 18-year-old woman - who is now in her 60s - weeks before Shirley's abduction.
Attorney General Geoffrey Cox QC granted the family the right to apply to the High Court for a new inquest into Elsie's death on March 12.
