The former girlfriend of a Brisbane man accused of killing his housemate in a dispute about rent says he complained while they were in bed about the alleged victim owing rent.
Elizabeth Jetnikoff told the Brisbane Supreme Court on Wednesday that Aaron Llewellyn Jones, 31, then confronted Joel Russell Charlesworth about not paying rent late in the evening of March 26, 2016.
"I said 'go tell him yourself'," Ms Jetnikoff told Jones' manslaughter trial on Wednesday.
"I was tired and didn't want to hear it."
Ms Jetnikoff said Jones walked onto the patio of the shared two-storey rental house in Murrarie and asked Mr Charlesworth about the rent he owed.
The court had heard earlier that Jones did not own the property.
Ms Jetnikoff said she heard the confrontation get "heated" and later saw the pair "get into each other's faces" over what she said was "something silly".
She said she walked in and out of the bedroom multiple times to watch what the pair were doing because she didn't want it to "get out of hand".
But she said the confrontation escalated and Jones restrained Mr Charlesworth from behind as the alleged victim swung his arms about.
The court heard Jones asked Mr Charlesworth "are we done bud, are we done?" while he was restrained.
Mr Charlesworth replied "get off me c***" and later said "we're done", the court was told.
Under cross-examination, Ms Jetnikoff said she did not see what led to the pair eventually falling to the ground.
She said she went back into the bedroom briefly and returned to find Mr Charlesworth on the ground having difficulty breathing and Jones hunched over him.
"I just saw blood and Joel (Charlesworth) on the ground and struggling to breath."
She called paramedics and held the mobile phone up to Jones' ear while he performed CPR on Mr Charlesworth.
"I was already in tears. I was hysterical," she said.
Mr Charlesworth died at the scene.
Prosecutors said they would set out to prove Jones killed Mr Charlesworth by putting him in a headlock after "tension" over rent payments became physical.
On Tuesday the court was told Mr Charlesworth, 30, had serious underlying medical conditions before the altercation.
These included issues with his lungs and a coronary disease which included an 85 per cent blockage of the artery.
The trial continues.
Australian Associated Press