The alleged killers of Danielle Easey both admitted to friends their roles in the death of the 29-year-old woman in 2019, a court has been told.
Justin Kent Dilosa and Carol Marie McHenry are standing trial in the NSW Supreme Court, accused of murdering Ms Easey.
Both have pleaded not guilty to murder, but Ms McHenry pleaded guilty to an alternate charge of accessory after the fact.
It is alleged Ms Easey was killed on August 17, 2019, in Ms McHenry's home at Narara on the NSW Central Coast.
Crown prosecutor, John Stanhope, today presented two scenarios to the jury, both involving the two accused being together, and being party to an agreement to at least cause Ms Easey serious harm.
The Crown is expected to call Jeremy Princehorn, who says he went to the Narara home of Ms McHenry, the day after the alleged murder.
"He recalls that Mr Dilosa was with him in the bedroom, and Mr Dilosa showed him the body by pulling back the doona," Mr Stanhope said.
The Crown said during a conversation in the room, Mr Dilosa and Ms McHenry both told Mr Princehorn they had killed the deceased.
Jacob Collins, another friend, is also expected to be called.
The jury was told of an admission Mr Dilosa allegedly made to Mr Collins around a fire.
"They were hanging out at Carol's, everything was fine until the crack ran out, she started to lose it, she was saying she was going to bring everyone down, I stabbed her in the head and the back," Mr Dilosa said, according to Mr Stanhope.
A text message from Mr Dilosa to a friend, Vanessa Burns, from August 19, 2019, was also read out to the jury.
"What I did ultimately was to keep the kids safe, but it will also keep half of Newcastle and the Central Coast from going to jail or killing each other," he said in the message.
Ms McHenry is also alleged to have told Ms Burns: "The problem has been dealt with, people owed me money, and they got what's coming to them. I stabbed her, I stabbed her in the back."
The Crown will rely on CCTV evidence to argue Mr Dilosa moved Ms Easey's body, from a cupboard at the Narara home to Newcastle in the back of a van.
The jury was told on the night of August 27, a motorist was driving near Lake Macquarie, in an area close to where Ms Easey's body would eventually be found, and "noticed something that looked off to him".
Ms Easey's severely decomposed body was found four days later at Cockle Creek.
The court heard traces of methamphetamine were found in her system.
In his opening address, Mr Dilosa's defence barrister Angus Webb said "there is a very large volume of material that is not in dispute".
But, he said, "the ultimate case for Mr Dilosa is that he did not attack Ms Easey."
"You will hear me challenge those witnesses, the bulk of those witnesses that claim Mr Dilosa told them this, that and the other thing."
Ms McHenry's lawyer, Antony Evers. told the jury his client had been awake for three to four days before Ms Easey's death because of her ice addiction.
"McHenry says she saw Dilosa attacking Ms Easey with a hammer and a knife," Mr Evers told the jury.
"She went along with what Mr Dilosa wanted to do because she was scared she would be next."
He urged the jury to "keep your minds open until such a time you've heard all the evidence".
The trial continues.
