The father of Melbourne teenager Patrick Cronin, killed by a "coward's" punch, has slammed the sentence handed to his attacker, who could walk from jail in five years.
The case has prompted the Victorian government to consider whether the state's one-punch laws should be changed so they can be applied more broadly.
Andrew Lee, 34, struck 19-year-old footballer Mr Cronin to the temple during a brawl outside the Windy Mile Hotel at Diamond Creek in April 2016, and later pleaded guilty to manslaughter.
Supreme Court Justice Lex Lasry on Friday jailed Lee for eight years, ordering him to serve at least five before being eligible for parole.
Prosecutors did not pursue a mandatory minimum 10-year jail term, under Victoria's one-punch laws introduced in 2014, saying they could not prove Lee intentionally punched Mr Cronin.
But the victim's father, Matt Cronin, said Lee's intentions were clear that night.
"Everyone standing here today would say this legislation should've applied," he said outside court.
"But unfortunately this legislation is poor ... It needs to be re-worked.
"Once we get the legislation right, maybe we can get a deterrent put in place."
Victorian Attorney-General Martin Pakula said it was the second one-punch case where prosecutors had determined the legislation did not apply.
"We will work with the DPP to establish whether that law should be amended to broaden the circumstances in which prosecutors can seek to apply the statutory minimum," Mr Pakula said.
The much-loved Mr Cronin was trying to steer a mate away from the fight when he received the blow that fractured his skull.
He managed to walk to a friend's house but his condition quickly deteriorated and he was rushed to the Royal Melbourne Hospital, where he died from bleeding on the brain.