LATEST: A WARWICK man has told a court that while he and Vincent O'Dempsey, 77, were cultivating marijuana, Mr O'Dempsey admitted to killing the McCulkins.
Warren McDonald, who worked with Mr O'Dempsey while growing marijuana on a property near Warwick, told a committal hearing in Brisbane this afternoon that the accused killer had admitted the murders to him.
Mr McDonald said they were in the car talking when Mr O'Dempsey told him "you need another notch on your gun".
Mr McDonald said Mr O'Dempsey then confessed to killing the McCulkins.
Mr O'Dempsey and Torbanlea man Garry Reginald Dubois, 68, are accused of murdering Barbara McCulkin and her two daughters, aged 11 and 13, in 1974.
A committal hearing is being held this week at Brisbane Magistrates Court where it is expected some witnesses will be cross examined.
The hearing is expected to continue until Friday.
GARRY Reginald Dubois, who is accused of murdering Barbara McCulkin and her two daughters in 1974, told his brother he did not murder them and that Warwick man Vincent O'Dempsey did it, a court has heard.
Mr Dubois's brother Paul Dubois has given evidence at a committal hearing in Brisbane about a phone conversation he had with his brother about the McCulkins' murders.
He said his brother said he was not there when the McCulkins were murdered and that "Vincent O'Dempsey did it".
Mr O'Dempsey, 77, and Garry Dubois, 68, have been charged with murdering Ms McCulkin and her two daughters Leanne and Vicki 41 years ago.
Paul Dubois said he spoke to his brother, who lived in Torbanlea near Maryborough, about a conversation that his bother had had with Mr O'Dempsey.
He said his brother had been told by Mr O'Dempsey that "the kids weren't meant to be there" and that Mr O'Dempsey wanted to kill Barbara because she had evidence on him that "would have got him around 20 years (in jail)".
Paul Dubois said he had not spoken to his brother for about 21 years.
He also said he had seen his brother on the TV show Australia's Most Wanted.
The hearing continues.
10:30 AM: 80 witnesses to be called in for McCulkin murders case
THE sister of one of the men charged with murdering a woman and her two daughters more than 40 years ago has given evidence in court.
A committal hearing is being held this week for Warwick man Vincent O'Dempsey and Torbanlea man Garry Reginald Dubois, who have been charged with murdering Barbara McCulkin and her two daughters, Leanne and Vicki in 1974.
Mr Dubois's older sister Gail Dubois has told the court in Brisbane she did not have much contact with her brother at the time.
She said Mr Dubois had told their mother that he was in the area at the time the McCulkins went missing, but "Garry said he didn't do it".
She also told the court their family lived in Mackay before they moved to Brisbane in about 1960.
Ms Dubois said when police told her her brother had been charged with murder she couldn't believe it.
Prosecutor David Meredith said more than 80 witnesses formed part of the case for the two men.
He tendered 87 witness statements.
The hearing continues.
8:30 AM: Court case could finally reveal details of McCulkin murders
A COURT hearing scheduled for this week could reveal some details about a cold case involving a mother and her two daughters who disappeared 40 years ago.
Warwick man Vincent O'Dempsey and Torbanlea man Garry Reginald Dubois have indicated they would plead not guilty to murdering Barbara McCulkin and her two daughters, Leanne and Vicki.
The men also face other charges including deprivation of liberty.
A committal hearing will begin today for the two men and Mr O'Dempsey may be cross examined.
Barbara and her daughters disappeared from their Highgate Hill, Brisbane, home on the night of January 16, 1974.
The men's arrests came after an extensive investigation by police and Crime and Corruption Commission.
Today's committal hearing will begin at 9am today.