A 16-year-old boy has been found guilty of the manslaughter of Polish man Arkadiusz Jozwik, who was attacked in Essex in August.
Mr Jozwik, 40, had been drinking vodka with friends and had just bought a pizza when he was attacked outside a takeaway at The Stow in Harlow.
He struck his head on the ground after being floored with a single punch, and died from head injuries two days later at Addenbrooke’s Hospital in Cambridge.
The prosecution said the defendant – who was 15 years old at the time of the attack and cannot be named for legal reasons – had moved behind Mr Jozwik, jumped up from the ground and used the “whole force of his body” to hit him with a “superman punch”.
The attack was initially treated as a possible hate crime, but that theory was later discounted.
The defendant said he hit Mr Jozwik in order to defend a friend, going on to say that two Polish men – who appeared to be drunk – were saying “fight me, fight me” and he felt “scared”.
Both prosecution and defence agreed that laughter could be heard during the attack, put down to the fact that Mr Jozwik was “weaving around”.
The defendant agreed with prosecutor Rosina Cottage QC that the laughter was because Mr Jozwik “looked such an idiot”.
Ms Cottage said: “If you didn’t like it, you could have scarpered, couldn’t you?”
The defendant replied: “Yeah.”
He will be sentenced on 8 September at Chelmsford Crown Court.
In October it was revealed five other youths, who prosecutors said were at the scene, would face no further action due to lack of evidence.