The hopes of finding Jane Furlong's killers appear to have been dashed as police wind down their murder investigation.
It is understood police will announce in the next few weeks they will no longer actively investigate the unsolved murder case.
Furlong was just 17 when she disappeared from Auckland's Karangahape Rd in 1993, her disappearance becoming one of New Zealand's most enduring mysteries. Her body wasn't found for almost 20 years. The teen had been due to give evidence in two trials, against a serial sex offender and in a gang-related court case.
After her skeletal remains were found buried deep beneath sand dunes at a remote Port Waikato location in 2012, police launched a murder inquiry, codenamed Operation Darlia.