A jury has found a woman guilty of murdering her de facto partner in 2005, the second time she had arranged to have a lover killed.

Key points: A jury has found Robyn Lindholm guilty of murdering her lover George Templeton

A jury has found Robyn Lindholm guilty of murdering her lover George Templeton Mr Templeton went missing in 2005 and his body has not been found

Mr Templeton went missing in 2005 and his body has not been found Lindholm is already in prison for the 2013 murder of another lover, Wayne Amey

After two days of deliberating, the jury found former stripper Robyn Lindholm guilty of murdering her partner George Templeton, also known as George Teazis, who went missing on May 3, 2005.

Mr Templeton was a father of five who ran a carpet laying business and had been in a relationship with Lindholm for seven years.

During the trial, the jury heard his body was never found and prosecutors could not be certain about exactly how he died, but that his blood had been detected at the home the pair shared in Reservoir, in Melbourne's north.

Lindholm is already serving a 25-year prison sentence for the 2013 murder of another lover, Hawthorn gym owner Wayne Amey, who she had tried to blame for Mr Templeton's death.

George Templeton, also known as George Teazis, went missing in May 2005. ( Supplied )

She had started an affair with Mr Amey when Mr Templeton was in prison in 2003.

In 2015, Lindholm was convicted of Mr Amey's murder after admitting to arranging for two other men to carry out the killing.

The court heard Lindholm had an alibi for the night Mr Templeton went missing.

But during his opening address, prosecutor Ray Gibson QC told the jury that the killing "occurred on the instigation of the accused".

"She was involved in his murder, whether or not she played a direct physical role in it," he said.

There was evidence from a female friend who was with Lindholm that night, that the man Lindholm was having an affair with, Mr Amey, was responsible.

The court heard she told another lover, Aaron Ardley, in 2013 that she had "organised some people to kill George Templeton", Mr Gibson told the jury.

"She said they got him at the house and put him on a boat. They dismembered him and threw him into the water," Mr Gibson said.

Lindholm also spent time in jail, and the court heard she confided in a cellmate in 2015 that Mr Templeton "got what he deserved, and I enjoyed every f***ing minute of it".

Robyn Lindholm had been in a relationship with Mr Templeton for seven years. ( AAP: David Crosling )

That account was "keenly in dispute", defence lawyer John Kelly SC told the jury during the trial.

The court heard that over the years Lindholm had told a number of friends and lovers of her involvement, describing several different ways she or others had killed Mr Templeton including that he was shot, his throat was slit, or he was bashed to death.

Mr Kelly cast doubt over that evidence and the credibility of the witnesses because of the different accounts they gave as to how the murder took place.

He also questioned the length of time after the murder some of the claims were made.

"She was not involved in any way with his death or disappearance," Mr Kelly said.

The court heard Lindholm had claimed Mr Templeton was a violent and jealous man.

The trial began in early August but had been the subject of a suppression order until Thursday.

Justice Christopher Beale will sentence Lindholm at a later date.