A man with an intellectual disability who fatally stabbed his housemate after a drunken argument turned physical has been jailed for at least four years.
Michael Allan Ackerley, 50, admitted the manslaughter of Mathew Baum, 41, at a home in Lara, outside Geelong, in February 2020.
The pair had been drinking heavily before Mr Baum accused Ackerley of stealing his phone and then twice assaulted him in the kitchen.
Mr Baum pushed his head into the ground, leading Ackerley to stab the younger man once in the groin with a 47cm-long blade.
Ackerley on Friday faced Victoria's Supreme Court, where he was sentenced to a total of six years and six months in prison.
He must serve at least four years before being eligible for parole.
Justice Rita Incerti said while Mr Baum started the two fights that left Ackerley with head injuries and a bruised eye, the older man still chose to pick up a knife during the second, and ultimately fatal, 10-second altercation.
"Mr Baum's death been nothing less than devastating for his family," Justice Incerti said.
"You made a tragically poor decision to arm yourself ... in a situation where you were no doubt afraid.
"But you didn't seek to kill him ... (and) there is nothing to suggest it was principally motivated by anger or revenge."
Ackerley told authorities he drank more than five cans of Jack Daniel's on the night, while Mr Baum was found to have a blood alcohol reading of 0.17 - more than three times the legal driving limit.
In a triple-zero call previously read out in court, Ackerley said "I'm very sorry but he shouldn't have attacked me first."
"He smashed my head into the concrete," the 50-year-old man said.
"A knife was beside me so I stabbed him - that was the only way to get him off."
Ackerley, who took photos of Mr Baum as he lay in a pool of blood, was originally charged with murder before pleading guilty to manslaughter.
Mr Baum's mother Dianne Martin previously spoke about the loss of her son, a road worker and local cricketer.
"When I do sleep the dreams of Mathew are so real," Ms Martin told the court.
"I awake with feelings of such joy ... to realise it is only a nightmare. And then the tears start and the overwhelming feelings of sadness return.
"The pain is still so real. It just doesn't go away."
Mr Baum's father Neville said he shuddered to think of the pain his son endured in his last moments, before addressing Ackerley directly.
"I hope the rest of your life is filled with the pain of regret of what you have done to our family," Neville Baum said in a statement.
Ackerley's sister said her older brother was illiterate and had never progressed further than year eight in high school.
Kim Elaine Ackerley added she once told her daughter he had the intellectual ability of a child despite being in a "grown man's body".
But she had never known him to show violent behaviour.
Ackerley has served 459 days in custody.
Australian Associated Press