UPDATE 6.20pm: A BLOW, then a fall, then a stomp.
Even when Scott Frank Williams was on the ground, Brandon John Mischewski attacked him.
It was what made the fatal attack "despicable," Justice Ann Lyons told Brisbane Supreme Court today.
What caused the altercation at a Buddina unit in January was not clearly known.
After 33-year-old Mr Williams was injured, Mischewski was concerned.
Justice Lyons accepted Mischewski was "extremely upset" when he learned Mr Williams had died.
She imposed a jail sentence of nine years and six months.
Mr Williams's mum Jeanette Quinn provided a statement outlining devastation the "senseless act of violence" had caused.
She said Scott was a "personable, caring, funny, generous person" who'd be remembered for quirky gifts he gave loved ones.
Ms Quinn said it was hard to be "denied the opportunity to see Scott overcome his demons."
The unlawful striking charge is a relatively new one, with few previous convictions, and carries a mandatory 80 per cent non-parole period.
Defence counsel Eoin Mac Giolla Ri said Mischewski moved from New Zealand aged about 8, to Brisbane, then to Bundaberg.
He will deported to New Zealand as soon as his finishes his jail sentence.
EARLIER: SCOTT Frank Williams's mum says "justice has been served" after jurors found a man guilty of killing the 33 year-old.
His family applauded, overwhelmed with emotion and relief as the guilty verdict was read out in Brisbane Supreme Court this afternoon.
Brandon John Mischewski was found guilty of unlawful striking causing death, for fatally attacking and stomping on the Sunshine Coast man in January last year.
"I think justice has been served," Mr Williams's mum Jeanette Quinn said afterwards.
Her son's loved ones had been waiting nearly two years for justice, she said.
"He was a nice soul. He had a great heart, a generous heart."
She said "Scotty" loved his nieces and nephews.
On December 6, Mischewski pleaded not guilty to unlawful striking and an alternate charge of manslaughter.
Mr Williams was killed in a unit on Boorook St, Buddina, in January 2016 and Mischewski was arrested three days later.
Ms Quinn said she wanted to thank QuIHN counselling on the Sunshine Coast and Queensland Homicide Victims Support Group.
She also thanked Richard Mann of Caloundra police CIB, as well as Crown prosecutor Phil McCarthy and his team.
Mr McCarthy said Mr Williams died after suffering a large fracture to the left side of his skull.
The jury heard Mischewski was accused of "stomping" on Mr Williams after assaulting him at a Buddina unit.
Mr McCarthy told jurors a dispute over money preceded the fatal incident.
He "had got himself into some trouble - he had failed to repay a debt, and [Mr Mischewski] was somehow involved in that debt."
The Crown said Mr Williams had experienced drug addiction troubles.
Another relative said Mr Williams was a good man from a good family but was "caught in a struggle".
Earlier, defence counsel Eoin Mac Giolla Ri told jurors another man's involvement at the unit was crucial, as were drug traces found in Mr Williams's system.
The defence barrister said a "potentially lethal" amount of methamphetamine was found but no evidence explained who administered this dose.
The jury retired on Friday to consider the evidence, and later asked for some recorded testimony to be replayed.
Some of Mr Williams's relatives had been at the Brisbane trial since it began.
Mischewski is expected to be sentenced this afternoon. -NewsRegional