Four boys face life behind bars for murdering the owner of a Chinese takeaway in Greater Manchester.
Mi Gao Huang Chen died in hospital five days after the attack
Mi Gao Huang Chen, 41, who was known as Michael, was beaten to death with a spade, a garden hoe and wooden stakes in Scholes, Wigan, in April.
Two boys, aged 15 and 17, were found guilty of murder at Liverpool Crown Court. Two other boys, both 16, had earlier pleaded guilty to murder.
A 17-year-old boy was cleared of murder and manslaughter.
The jury failed to reach a verdict on a 17-year-old girl, but she was acquitted of murder by Mr Justice Royce after the court accepted a guilty plea to violent disorder.
All five of the guilty teenagers will be sentenced in Manchester at a date to be fixed.
Mr Chen was kicked to the floor and repeatedly punched by a gang of youths outside the Superb Hut on 23 April.
He was taken to hospital but died five days later of head injuries.
The beating was captured on film by CCTV operators.
The tapes, which were shown to the jury many times, showed how Mr Chen, his girlfriend and his chef armed themselves and confronted youths near the shop.
As the confrontation escalated, one boy - one of the pair found guilty - kicked Mr Chen to the floor.
The same boy then kicked Mr Chen three times and punched him once as several youths gathered around the prone victim to carry out a frenzied attack. The boy also pulled Mr Chen's girlfriend away as she tried to protect him.
The other boy found guilty was seen to stamp repeatedly and forcefully on Mr Chen's head.
The two boys who pleaded guilty to murder before the trial were both seen striking Mr Chen with a stick or stake.
The attack had been prompted by an earlier confrontation between the Chinese takeaway workers and some youths.