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

A note demanding drug money allegedly sparked a trio’s home invasion, with the man whose throat was slit during the gruesome alleged attack fearing he might die.

The man whose throat was allegedly slit with bladed knuckle dusters said he thought he might die when he saw how much blood was spurting out, a court 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.

Giving evidence, Mr McPherson, 29, said he had known Ms Robinson for two years at the time of the alleged offending and had previously met Mr Robinson and Ms Henson.

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

The note the alleged victims left on Ms Robinson’s car. Photo: Courts SA

Mr McPherson told the court he supplied Mr Robinson with fantasy for $400 prior to the alleged offending but hadn’t received payment from him.

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.

Giving evidence, Mr Whitehead, 52, told the court he woke up in the early hours of September 27, 2021 to Ms Robinson, who was wearing a wig, allegedly standing on the bed screaming.

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

Inside the Ridgehaven granny flat where the alleged home invasion occurred. Photo: Courts SA

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

Mr Whitehead said Mr Robinson allegedly pinned him down, before slitting his neck with what he believed were bladed knuckle dusters.

“When he got off me and I sat up, blood just started spurting out everywhere,” he said.

“I think I felt a bit shocked. When I realised how much blood I was losing I thought I could possibly die.”

The court heard the group allegedly assaulted Mr McPherson, including Mr Robinson kicking him to the face, as well as stealing his silver necklace.

He suffered injuries including a lump to the head, a split lip and broken teeth.

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 scar Mr Whitehead was left with after the alleged attack by Mr Robinson. Photo: Courts SA

Dr Mian Ooi, a service registrar in the ENT (ears, nose and throat) department, told the court Mr McPherson’s injury required urgent treatment but was not immediately life threatening

Dr Ooi said the injury was consistent with the use of a sharp bladed object but couldn’t comment on what type it was.

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.

Mr Lesses said Mr Robinson sent texts to another woman the morning of the alleged home invasion.

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

Christopher Robinson has pleaded not guilty to all charges. Photo: Facebook

“Gangland enforcer. It’s my time, it’s my job to enforce the rules of the underworld. I’m like any army,” the texts read.

“There are different armies but when everything falls apart and bad things happen to people … then they send me.

“No more talking, so anything from intimidate people, destroy things and then all the way up to assault and muerte”.

The court heard muerte is the Spanish word for death.

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.