A teenager who stabbed a student to death in a row over conkers has had his sentence increased by the Court of Appeal.
Sixteen-year-old Ochaine Williams – who can be named for the first time – was in the dock at the London courtroom to hear three judges increase his minimum term from 10-and-a-half years to 12 years.
Williams, of Victoria Road, Edmonton, north London, was 15 when he killed architecture student Steven Grisales after he challenged youths who were throwing conkers in their spiky husks at him.
Mr Grisales, 21, had been shopping for his grandmother and was on his way to Silver Street station in Edmonton when he was attacked in College Close in August 2011.
Williams denied being the killer, but was found guilty of murder at the Old Bailey earlier this year.