Sentencing Francesco John Prevete to at least 23 years in prison, the judge at Mold Crown Court said: "you carried out a brutal and ferocious attack on Craig Maddocks.”
Prevete showed no emotion as the sentence was passed.
Mr Justice Jeremy Baker detailed the injuries inflicted by more than 50 stab wounds, causing "a significant degree of mental and physical suffering”.
He said the victim would have been “conscious of what you were doing to him.”
The judge said that there was evidence that Mr Maddocks’ use of cocaine meant that he owed people money, including £300 to Prevete's father - and that Prevete decided to punish him.
He denied murder during the trial, and Mr Justice Jeremy Baker said: “Because of your claim to have no knowledge of the offence, it may never be known with certainty what lay behind your decision to kill him."
More top news
A dry night is expected throughout the country. During the early hours clear spells are likely to develop allowing the temperatures to fall.
More than a thousand people gathered for the funeral of Wales international rugby league player Danny Jones in Halifax.
A chef from St Gwladwys Bargoed Primary School has won School Chef of the Year in a National competition