The night before Levi John Stephen Elliott turned 30 his "festering and unbalance hatred" for another man mixed with alcohol sparked a stabbing that left a boy fatherless.
A Brisbane Supreme Court jury on Monday found Elliott guilty of murdering Adam Woodward outside a Brisbane leagues club on August 24, 2018.
Elliott had been drinking at the club the night before his birthday before he stabbed Mr Woodward 17 times with an illegal butterfly knife he bought online.
The jury rejected Elliott's claim that he was acting in self-defence.
"It was a combination of a festering and unbalanced hatred for him combined with an evening of drink," Justice Glenn Martin said in sentencing Elliott.
"You were armed with a knife. He was unarmed.
"You used your knife to kill Adam Woodward - not with one strike but there were many.
"One of them robbed a small child of his father."
Justice Martin said Elliott had brought "grief and destruction" on Mr Woodward's family.
The court heard Mr Woodward's son, now aged about five, still calls out for his "daddy" from time to time.
"No child should have to live with this pain," the boy's mother said in a statement read to the court.
"Everything in his life - the good times and the bad ones - he won't be able to have his dad there to experience them alongside him; to give him guidance or advice."
Many of Mr Woodward's friends and family teared up in court when the verdict was handed down before hugging each other outside.
Over 10 days of evidence the jury heard the now-33-year-old Elliott went to the Brothers St Brendan's Leagues Club armed with the knife, knowing Mr Woodward was there.
Prosecutor Caroline Marco told the trial Elliott's real purpose was to use the weapon against 35-year-old Mr Woodward if a fight eventuated between them.
Referring to footage from inside the venue shown during the trial, Ms Marco claimed Elliott antagonised Mr Woodward from two minutes after his arrival at the club.
She also argued Elliott left after challenging Mr Woodward to a fight.
During the altercation between the men Mr Woodward suffered 17 knife wounds.
These included the fatal laceration to his neck that transected his jugular vein causing massive haemorrhaging before collapsing his left lung.
The jury rejected Elliott's version that he didn't intend to kill or harm anyone.
Elliott claimed he had acted in self-defence after "being a smart-arse" inside the club in the hope Mr Woodward would leave first.
Elliott, who has been behind bars since his birthday in 2018, was sentenced to life imprisonment.