A 15-year-old boy has today admitted killing another teenager who was stabbed with a hunting knife whilst at school.

Harvey Willgoose, also 15, died after he was stabbed through the heart during the horror incident at All Saints Catholic High School in Sheffield on February 3.

The knife-wielding teenage killer, who cannot be named, admitted Sheffield United fan Harvey’s manslaughter when he appeared before the city’s crown court.But he denied murdering Harvey and will now go on trial in the summer.

Judge Jeremy Richardson KC remanded the defendant, who stood in the glass-fronted dock with an intermediary and three members of security staff, into secure local authority care and told him that he will go on trial on June 30.

It is understood there may be as many as 20 child witnesses with police interviewing pupils who were present when Harvey suffered his devastating fatal injuries.

At a previous hearing Judge Richardson told the boy that he was “determined” he would receive a fair trial.

He told him: “I am determined that you will be tried fairly, there is no question about that.

“Your trial is going to take place at the end of June, throughout July.

“Occasionally, young people like you think that it will be a good thing if they sit and wait at the remand home and refuse to come to court.

“If you do that, first it would be very silly, and secondly we will not wait. The case would just go on without you, so please make sure you turn up for every hearing.

“You have a right to give evidence in your trial. If you choose not to, there may be consequences. You need to consult with your lawyers before making a decision.”

The youth was told his trial is expected to last four weeks.

Sheffield Magistrates’ Court previously heard Rob Coyne, prosecuting, describe how a "Rambo or hunting-style knife" had been recovered, adding: "It went through Harvey's ribcage and punctured his heart."

He revealed the incident had been captured on CCTV.

Harvey’s devastated mum Caroline, 49, revealed his final words to her before leaving for school on the day of his death were: "I love you."

She said: "He shouted downstairs, 'I'm going to school, Mum. Are you proud of me?'

"I went, 'Yeah', and followed him out and he went, 'Lock the door behind me and I love you'. They were his last words."

She added: "I have got his grubby T-shirt on so I can smell him.

"I don't want to go to sleep because I don't want to wake up and relive it all. I don't want anybody to go through what we are."

Harvey's father Mark said his Sheffield United-loving son was his "best pal" and a "loveable rogue".

The boy admitted killing Harvey after it emerged that police recorded 150 stabbings or other knife crimes causing injuries at schools across England and Wales last year -  the equivalent of four per school week.

The knife attacks are among at least 20,000 violent crimes recorded at schools by police forces in 2024, shock new figures show.

And as just over half of police forces were able to provide data, the true extent of school violence is likely to be even greater.