Christopher Robinson, Jana Henson and Nicki Robinson standing trial for violent Ridgehaven home invasion

A trio seeking revenge over a drug debt allegedly led to a violent home invasion, where a man’s throat was horrifically slit with bladed knuckle dusters, a court has heard.

A trio’s revenge over a drug debt allegedly led to a man having his throat slit with double-bladed knuckle dusters, a court has heard.

Christopher Geoffrey Thornton Robinson, 42, Nicki Meree Robinson, 29, who are not related, and Jana Emily Henson, 39, are standing trial in the Supreme Court over the alleged violent home invasion.

The trio pleaded not guilty to serious criminal trespass and robbery, while Mr Robinson also pleaded not guilty to attempted murder and causing serious harm with intent.

Kos Lesses, for the prosecution, told the court in his opening statement the alleged victims were Jason Whitehead and Beau McPherson, who were in a relationship at the time.

The court heard the men were friends or associates of Ms Robinson and Ms Henson and had previously met Mr Robinson.

“Beau McPherson and Nicki Robinson had previously supplied each other with drugs and had previously owed each other money for drugs,” Mr Lesses said.

Nicki Meree Robinson pleaded not guilty to serious criminal trespass and robbery. Picture: NCA NewsWire

Jana Emily Henson pleaded not guilty to the same charges, Picture: NCA NewsWire

The court heard Mr McPherson allegedly supplied Ms Robinson with half a litre of fantasy for $400.

“On the Friday before the alleged offence, Chris Robinson purported to effect an electronic transfer of the $400 to McPherson but no money was actually transferred,” Mr Lesses said.

The court heard the alleged victims left a note saying “WTF is our money for the s*** we got yest (yesterday) – don’t make me come back,” on a car outside Ms Robinson’s Paradise home.

Mr Lesses said the men awoke in the early hours of September 27, 2021 to a female standing on their bed shouting about the note left on the car.

The court heard Mr McPherson pulled off the wig the female was wearing and recognised it was Ms Robinson, before she allegedly took Mr Whitehead’s mobile phone.

Ms Henson and Mr Robinson then allegedly burst into the Hazel Grove, Ridgehaven granny flat.

Mr Lesses said Mr Robinson allegedly pinned Mr Whitehead down before striking him to the neck with double-bladed knuckle dusters.

The trio were charged after the alleged home invasion in Ridgehaven. Picture: Kathryn Bermingham

“Beau McPherson describes blood spurting out from Jason Whitehead’s neck,” Mr Lesses said.

“(He) heard Chris Robinson say ‘Now you’re going to die’.”

The court heard Mr Robinson and Ms Henson allegedly assaulted Mr McPherson before stealing his silver necklace.

Mr Whitehead was conveyed to hospital after severing his occipital artery and sustaining a 15cm laceration to the back of his neck, which required medical staples.

The court heard both women were located at Ms Henson’s address in Magill where police located Mr Whitehead’s phone and the blonde wig Ms Robinson allegedly wore.

Brittany Armstrong, for Ms Henson, told the court there was insufficient evidence to prove beyond reasonable doubt her client was one of the people present.

Gilbert Aitken, for Mr Robinson, told the court identification of his client was also an issue, as well as the credibility and reliability of the alleged victims.

Sally Burgess, for Ms Robinson, said her client denied any criminal wrongdoing whatsoever.

The trial before a jury continues.