A 15-year-old boy has been convicted of the murder of software engineer Ian Kirwan, who was stabbed in the chest following a fight at an Asda in Redditch.
Three other teenagers, two aged 14 and one 16, were acquitted of murder and manslaughter but found guilty of violent disorder by jurors.
A fifth boy, 16, was acquitted of murder, manslaughter, and violent disorder on the grounds that he was not involved in the fatal confrontation and could not have predicted it.