Three Hamilton residents were charged with the murder of Mr Kane, who died in January this year.

Lanie Snell, 34, Stewart Campbell, 19, and Samuel Worthy, 19, appeared in the Warrnambool Magistrates Court on Wednesday for a committal mention hearing.

The committal hearing will start on November 7.

Solicitors for Mr Worthy and Mr Campbell discussed witnesses and other issues with magistrate Peter Mellas.

A solicitor for Mr Worthy had issues with one witness being called.

The prosecution claims the witness, who made an eight-page statement to police, has text messages about trying to locate Mr Kane after he went missing and other messages which relate to a possible motive behind Mr Kane's death.

The magistrate suggested further discussion between solicitors for Mr Worthy and the prosecution to narrow issues before the committal hearing.

A solicitor for Mr Campbell raised issues about police talking to Mr Campbell before he was formally interviewed and foreshadowed legal argument about those conversations.

Mr Campbell, Mr Worthy and Ms Snell appeared in Warrnambool court from prison via a video link in separate hearings.

They did not apply for bail and were remanded in custody.

In a filing hearing on February 1 in Warrnambool court, solicitors for Mr Worthy and Mr Campbell said their clients had custody management issues due to their young age, it being their first time in custody and their vulnerability. 

A solicitor for Mr Campbell said Mr Campbell would be withdrawing from cannabis use and had a history of mental health issues. 

Solicitor Matt Senia said Ms Snell was being treated with Lexam and Valium after being diagnosed with anxiety and depression and she would be withdrawing from frequent cannabis use.

The trio were arrested after police executed warrants in Hamilton on January 30.

Homicide Squad detectives charged the three with murder later that night after a body was found in Mount Eccles National Park about 4pm on Friday, January 29.

It is understood information from the public was provided to police about a vehicle being in the Mount Eccles National Park in unusual circumstances.

Mr Kane went missing on January 23.

Detective Sergeant Mark James, of the Hamilton police Crime Investigation Unit, said police wanted to talk to anyone who was in the Mount Eccles National Park on Saturday, January 23, or Sunday, January 24.