The Walsh Street killers who gunned down two Victorian police officers 25 years ago may never face justice.
Seven News can reveal the three surviving men accused over the 1988 Walsh Street murders of Constable Damien Eyre, 19, and Stephen Tynan, 22, won't be re-tried following new double jeopardy laws introduced last year.
The pair were shot dead after being ambushed at an abandoned car in the street in South Yarra on October 12, 1988.
Four men, Victor George Peirce, Peter David McEvoy, Trevor Pettingill and Anthony Farrell were tried for their murder but acquitted in 1991.
Assistant Commissioner Graham Ashton announced 18 months ago Victoria's most infamous unsolved police killing would be the force's highest priority when the new laws came in.
Seven News has learnt that a review of the evidence was completed by a senior member of Victoria Police after the 800-year-old double jeopardy laws were overturned.
However, it was deemed that the case was not strong enough to present to the Department of Public Prosecutions (DPP) for a possible retrial.
Police say they have spoken to the Tynan and Eyre families about the status of the case.
It will come as yet another blow to the families, who have lobbied for justice since the killings.
Seven News understands no fresh approaches have been made to the three surviving accused or Wendy Peirce, the star crown witness who crashed the case by recanting critical evidence.
She was charged with perjury after later admitting she had been protecting her husband. Victor Peirce was shot dead in Bay Street, Port Melbourne in 2002.
It appears without shock new information coming from one of those four people, hopes of justice for the two constables have been dashed.
As with all unsolved police investigations though, it will remain permanently open.