A fifteen-year-old youth has been sentenced to life imprisonment with a lowest term of 16-year period for the killing of other pupil the victim during a lunch period.
Mohammed Umar Khan pierced Harvey, also aged fifteen, through the heart with a large blade at Sheffield's All Saints Catholic High School in the winter month.
The judge revoked the name suppression limitation on the killer during the judgment at Sheffield Crown Court.
Harvey's mother said she felt "as if a large burden has been lifted off my shoulders" following the judgment.
The two adolescents had beforehand disputed over social media in the period prior to the fatal encounter.
The mother remarked she was glad the minimum term had been determined higher than the required minimum of fifteen years.
"My father has been undergoing medical treatment through the court proceedings and he just couldn't persist any longer," she expressed.
Prior to the murder on February 3rd, the perpetrator and the deceased had taken conflicting sides in a separate conflict between two other pupils.
Security footage from the day of the incident displayed the killer approaching the victim in the outdoor area shortly after midday.
Witnesses recounted a scene of "disorder", with those present "fleeing, screaming throughout" during the aggressive event.
During the trial, Khan testified he had not planned to murder Harvey or cause him grave injury, stating he could not recall what had happened.
Prosecutors argued that he had "intended to prove he was hard" and "was aware exactly what he was carrying out".
"You acted as the instigator and... you proceeded in hurt and rage at what you considered to be his treachery of your bond," pronounced the justice during the judgment.
The educational institution published a message stating that the student was "deeply missed every single day by the entire learning environment".
Police officials emphasized the catastrophic outcomes of bearing weapons, noting that a "instantaneous action" can irreversibly alter various lives.
This incident has prompted continuing discussions about youth aggression, blade ownership, and school protection measures throughout the community.