The NSW Government has increased the reward to $1 million for information into the death of a Tamworth teenager nearly three decades ago.
The body of 17-year-old Mark Anthony Haines was found on train tracks outside of Tamworth on Saturday 16 January 1988.
Local police investigated the circumstances surrounding the death at the time, later subject to Coronial inquiries, which returned an open finding.
Detectives from Oxley Police District are continuing their inquiries into Mark's death under Strike Force Puno, in both New South Wales and Queensland.
A full review of investigative records by the State Crime Command's Homicide Squad concluded in February 2022. This information has been sent to the State Coroner for consideration.
Oxley Police District are determined to find answers about what happened to Mark and to bring closure for his family.
Acting Oxley Police District Commander, Detective Acting Superintendent Jason Darcy, said that police are committed to finding answers.
"Mark's family deserves closure and peace having dealt with uncertainty of what happened over three decades ago," Det A/Supt Darcy said.
"The case remains open and any information that comes to light will be given the highest priority and fully investigated.
"We believe there are people in the community who have vital information about Mark's disappearance and know exactly what happened to him on that day.
"Any information – not matter how small you may think it is, could be the missing piece to the puzzle."
Mark's uncle, Don Craigie, said he hopes the reward increase will encourage people to come forward to help uncover the truth.
"We urge people to put yourselves in our shoes – we just want to know what has happened to our much-loved Mark," Mr Craigie said.
"It's been too long without knowing – if anyone has any information, now is the time to come forward.
Anyone with information about this incident is urged to contact Crime Stoppers: 1800 333 000 or https://nsw.crimestoppers.com.au. Information is treated in strict confidence. The public is reminded not to report information via NSW Police social media pages.
