This is the shocking moment Charlie Elms is chased down the street before being stabbed to death after a 'pointless' feud erupted in deadly violence.
The 25-year-old dad-to-be was knifed in the back by teenager Karl Marler on Oldham's Limeside estate.
Marler, 17, has today been jailed for at least 16 years after being found guilty of murder.
CCTV released by police after the sentencing shows how the tit-for-tat dispute, which had been building up between two rival groups, exploded on May 26.
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In the footage a blue Vauxhall Corsa containing Charlie and five other men can be seen pulling up outside Marler's aunt's house.
Charlie is armed with a machete and others also have weapons.
The group can been seen kicking at hacking at the front door, while an electric scooter is hurled at the window. A car on the drive is also damaged.
Marler can then be seen emerging from the house armed with a knife, alongside two 16-year-old boys who are carrying a meat cleaver and a knife.
Another man, 39-year-old Marvin Whelan, can be seen throwing a bottle of beer at the group.
Four of Charlie's group then flee in the Corsa, leaving Charlie and another man behind.
Marler then begins chasing the pair, but as they run along the street Charlie slips just before the footage ends.
Moments later Marler caught up with Charlie and plunged a large 15cm kitchen knife into his back 'as hard as he could'.
Manchester Crown Court heard the two opposing factions had formed after two men, both partners of members of Marler's family and former friends, had fallen out after a drunken row.
The judge said Marler, who admitted he'd been carrying a knife for some time, had displayed an 'almost total lack of remorse'.
When asked how he felt about Charlie's death, Marler said: "I am upset and angry at myself."
"There was not a hint of sorrow, regret or remorse for taking another man's life," Judge Patrick Field QC said.
Marler was detained at Her Majesty's Pleasure, the equivalent of a life sentence for criminals under the age of 18.
He must serve at least 16 years before he can be considered for release by the Parole Board.
Heartbreaking statements from Charlie's partner, Demi-Leigh O’Shea, and his mother, Paula Birrell, were read on their behalf in court.
Charlie's son Archie was born following his death.
Ms O'Shea said: "I want the court to know that no matter how long the person who did this spends in prison, for me I don't see myself ever feeling better.
"I am lost without Charlie in my life."
While Ms Birrell said: "It is so wrong that Archie will never know or meet his Dad.
"I feel disgusted about the fact that a 17-year-old can do this to somebody."
Defending, Ahmed Hossain QC said Marler was acting in an 'impulsive' manner under 'extreme provocation', in response to a 'terrifying' attack.
He has shown developing maturity while in jail and has the support of his parents, the court heard.
Marler was found unanimously found guilty of murder by a jury.
