Tomorrow will mark six months since a large-scale police operation uncovered Mr Manley’s skeletal remains in overgrown grass only metres from the edge of Belmore Road.

Police are finishing their brief of evidence to submit to the NSW Coroner, who is then likely to announce an inquest into the cause of Mr Manley’s death.

Central Hunter crime manager Detective Inspector John Zdrilic said police expected to submit their evidence in August.

He said investigators would make their submission to the Coroner who would then analyse the evidence police have collected. 

“Then it is up to the Coroner to set an inquest date,” Inspector Zdrilic said.

An autopsy conducted in February found Mr Manley suffered no bruising, broken bones or other injuries consistent with being hit by a passing vehicle.

Toxicology results handed down in April concluded that there were no abnormal levels of poisonous substances from drugs or animal venom that would have caused his death.

The 21-year-old had been missing for about two months, after his mother Mary left him at Telarah railway station to meet a friend on the evening of November 21, last year.

Mr Manley’s father Jonathon made a public appeal for information in early January.

Police formed Strike Force Wondoba to investigate Mr Manley’s whereabouts and organised a search of the Marcellin Park area on January 28, which included police divers, PolAir, water police and Northern Region Operation Support group officers.

The search was launched after investigators uncovered new information from social media that put Mr Manley in Lorn in the early hours of November 22.

A crime scene was established after searchers found human remains near the edge of the road, later confirmed to be those of the missing man.