Police at the Cini's home in Badgerys Creek in May 2014.

As Australian Lucina Boldi lay on the floor pretending to be dead, she could hear her house in being ransacked.

Thousands of dollars in takings from her husband Keith Cini's pig farming business were locked in a safe nearby.

Her alleged attackers got away that morning in May 2014, with three cameras and an iPhone.

Keith Cini's daughter and her partner at the scene in May, 2014.

They left behind a terrified Boldi, suffering a fractured arm, and her husband, dead after being allegedly bound and beaten with a bat.

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FAIRFAX MEDIA Detectives at the scene of the Badgerys Creek home invasion.

Facts tendered in a New South Wales court have revealed the details behind the fatal home invasion in Sydney's west that allegedly led to the murder of Cini and attempted murder of his partner.

The facts were submitted in the case of Brittany Bradshaw, who was charged with concealing a serious offence after failing to report to police what she knew about the allegedly brutal robbery.

Cini was a 69-year-old who ran a trucking business from his semi-rural property.

He worked hard selling and transporting pigs to restaurants in Sydney city throughout the week and brought his takings home to keep in a safe until he deposited them each Friday.

Keith Cini ran a trucking business from his semi-rural property near Sydney.

Police allege Ryan David Evans and Thomas Baumer, wearing black clothing, gloves and with their faces covered, smashed their way through the front window of Cini's Elizabeth Drive home in the early hours of May 30, 2014.

Once inside, Cini's ankles and wrists were bound with duct tape and he was violently assaulted with a "pole like weapon".

The facts tendered state Boldi came out of the room she had been sleeping in after hearing her partner call her name.

She walked into the hallway and came face to face with two intruders before watching her husband fall to the floor.

"Lucina Boldi attempted to retreat to her bedroom and close her door but was overpowered by one of the accused," the facts state.

"She was struck to the head by an object she believed was a bat. She fell to the floor and was struck to the head a further two or three times.

"She covered her head with her hand in an effort to protect herself. The assault ceased when she lay still and pretended to be dead."

At one stage, one of the alleged attackers stood on her legs before ransacking her bedroom.

Boldi lay in wait for the alleged attackers to leave before she made a move. She then found Cini lying motionless in the hallway.

At 4.04am, she called emergency services.

In a hearing in the Campbelltown Local Court last week, Baumer's defence barrister made an application to have a number of witnesses questioned at a committal hearing.

Among them was Bradshaw, who received a text from Evans about two hours after the alleged attack asking for a favour.

According to facts tendered in her case, Bradshaw picked Evans up from near Baumer's house in Rossmore - 14km from the crime scene - after 6am on May 30, 2014.

She later told police, Evans, 27, disclosed that he and Baumer, 25, had broken into a house that morning and "bashed someone".

She also told police: "I think they were, like physical, like they've hit him and stuff like that...I sort of do remember something about a bat".

While Bradshaw, who received a seven-month suspended jail sentence, knew about the break in at Cini's, the prosecution conceded she didn't know someone had been murdered.

The 25-year-old's interview with police was tendered during Baumer's hearing.​​

The court also heard about another text exchange between Evans and Baumer before Cini's home was allegedly targeted.

Evans sent a text to Baumer stating: "are you up for it tomorrow...f--- that let's do it tonight".

Baumer replied: "I like your style...just got to hit this bitch up for a car".

As homicide detectives were called in to investigate Cini's violent bashing, a smear of blood left at the scene allegedly led them to Baumer.

It is alleged Baumer cut his finger during the break-in, possibly on a broken window, and left his blood behind.

A crown solicitor told the court the case against Baumer was "overwhelming powerful".

However Baumer's barrister Scott Corish said the prosecution thesis that both Baumer and Evans entered the house at the same time was an assumption.

The case was adjourned to later this month.