The man who fatally struck young footballer Patrick Cronin outside a Melbourne pub wants his jail term reduced, claiming his one-punch attack wasn't as bad as another high-profile case.
Andrew Lee punched Mr Cronin as the 19-year-old was trying to take a friend away from a brawl outside the Windy Mile Hotel at Diamond Creek in April 2016.
The teenager suffered a fractured skull and later died in hospital from bleeding on the brain.
Lee, 34, was jailed for eight years with a minimum term of five years after pleading guilty to manslaughter in the Supreme Court.
But he appealed against the length of his sentence during a Court of Appeal hearing on Wednesday.
Defence lawyer Peter Morrissey QC said Lee's case wasn't as serious as that of Richard Vincec, who also killed a man with a punch outside a Melbourne bar.
Vincec pleaded guilty to the manslaughter of Jaiden Walker, 22, outside the rock club Cherry Bar last May.
He was angry with Mr Walker because he refused to shake hands and punched him, causing him to fall and fatally crack his skull on the ground.
Vincec received the exact same jail sentence and non-parole period as Lee.
"Vincec saw his victim, intended to whack him and did so," Mr Morrissey said, noting the punch was "calculated".
"What my client did was different. He was endeavouring to hit (another man) Mr (Anthony) Hopkins.
"My client got the same as Vincec when, in our submission, he is just plainly not as bad."
Mr Morrissey said Vincec was a drug user with prior offences and fled after the attack, while Lee had no priors and good future prospects.
He also argued that while Mr Cronin was innocent and only trying help a friend in the brawl, the teen knew "fists were flying".
"He went in where angels fear to tread," Mr Morrissey said.
Prosecutor Brendan Kissane QC argued the original sentence should stand, saying Lee threw heavy punches at several people and should have known better.
"He's no longer a young person. He had some training in martial arts," Mr Kissane said.
"He sat back and watched (the brawl), and then became involved in a particularly violent way."
After the hearing, Patrick's father said the original sentence was "pathetic" and should not be reduced.
Matt Cronin again called for stronger laws to stop one-punch deaths, saying the justice system is failing victims.
"We need to adopt a victims-first approach when it comes to the legal system," he said.
The Court of Appeal will rule at a later date.