Alan Baker, 25, who was convicted of murder last month, stabbed taxi controller John Weir at least 16 times at his home in Bonhill, West Dunbartonshire, in January this year.
Lord Boyd jailed Baker for life at the High Court in Glasgow and told him he was guilty of a "brutal" attack on the popular 36 year-old.
The judge also said he hoped Baker, who claimed he was acting self defence, will recognise the "devastating impact" Mr Weir's death has had on those close to him.
A jury heard how Mr Weir suffered a violent death soon after meeting Baker on January 3 this year.
The trial heard claims Baker pushed Mr Weir away when he allegedly tried to get intimate. Baker said a fight broke out after he was punched on the chest.
Mr Weir had lived in Erskine, Renfrewshire, with his disabled sister, who was put into care after his death.
After the trial, the father's close friend Michael Lloyd paid tribute to a man who would "always try to help people out".