Three teenagers have been found guilty of killing an Uber Eats rider they were trying to rob.
Iderval Da Silva, 46, from Brazil, was punched and kicked as he tried to stop his scooter being stolen in Battersea, London, in May last year.
His attackers left him unconscious on the ground and he died three days later from a bleed on the brain.
A 16-year-old boy and 19-year-old Jadan Richards, from Wandsworth, were found guilty of murder at the Old Bailey.
A third teen, aged 17, was found guilty of manslaughter but cleared of murder.
Jasire Frazer, 18, from Wandsworth, and a 17-year-old were cleared of murder and manslaughter, while another 17-year-old boy was cleared on the judge's direction.
The jury heard how Mr Da Silva had parked his scooter outside a Battersea cafe on 25 May.
The teenagers attempted to steal it and beat Mr Da Silva with "fists and feet" when he tried to stop them.
Prosecutor Tony Badenoch told jurors: "It was a momentary explosion of short-lived violence which killed Mr Da Silva."
Sally-Anne Russell, from the Crown Prosecution Service, said Mr Da Silva had been outnumbered by the gang.
"Witnesses watched on in horror as the unprovoked attack unfolded," she said.
"They rushed to Mr Da Silva's aid after the attackers fled, but the level of violence was such that a few days later Mr Da Silva died from his injuries."
The jury deliberated for more than 20 hours to reach its verdicts.
Sentencing will take place on 5 February.