Teen killer jailed 16 years for stabbing Harvey Willgoose at Sheffield school
Mohammed Umar Khan, 15, was sentenced to a minimum of 16 years for the murder of fellow pupil Harvey Willgoose at All Saints Catholic High School in Sheffield.

Weapons-obsessed teen sentenced for fatal school stabbing in Sheffield
Mohammed Umar Khan, 15, was jailed for a minimum term of 16 years on Wednesday after being found guilty of murdering his 15-year-old classmate Harvey Willgoose at All Saints Catholic High School in Sheffield, lbc.co.uk reports.
Khan stabbed Harvey twice in the chest with a 13cm hunting knife outside the school cafeteria on 3 February 2025. One blow cut through a rib and pierced Harvey's heart. Khan had previously admitted manslaughter but denied murder; a jury at Sheffield Crown Court returned a guilty verdict on the more serious charge in August.
Khan had his identity withheld during proceedings due to his age. He was named by sentencing judge Mrs Justice Ellenbogen at Sheffield Crown Court during the hearing on 22 October.
CCTV shows killer dancing in canteen
Footage released from inside the school captures the moment Khan confronted Harvey in a corridor before producing the hunting knife. In a later section of the same clip, Khan appears to dance in the cafeteria close to the spot where he had just carried out the attack. Police also released images of the murder weapon.
Harvey's mother, Caroline Willgoose, said her family had been made to "endure" and were "haunted daily" by the CCTV footage because Khan "refused to take any responsibility" for what he had done. Other pupils fled "in fear and panic" following the attack, with some locking themselves in a school cupboard, the court heard.
Judge cites history of anger and weapons
Mrs Justice Ellenbogen told Khan that records documented his "inability to manage" his anger. She referred to a visit by a police officer to Khan's home in December 2024, after his mother discovered photographs of him posing with weapons.
"He advised you about the dangers of carrying weapons, advice which you ignored," the judge said.
She added that prior to 3 February 2025 there had been "at least one other occasion" on which Khan had been found in possession of a knife on school premises, recorded in a video clip and photographs. Between November 2024 and January 2025, she noted, there had been "three separate incidents in which you had become angry and aggressive towards a person and/or property at school."
The prosecution told the court that Khan "wanted to show he was hard" and had become "obsessed" with weapons, describing his claim to have no memory of the killing as "a lie." Photographs found on his phone showed him posing with knives on multiple occasions.
The defence argued Khan had "lost control", stabbing Harvey after years of bullying and "an intense period of fear at school." Moments after the attack, Khan told teachers: "You know I can't control it." He later said "I'm not right in the head," the court heard.
Khan showed no reaction as he stood in the dock for sentencing.
Family remembers Harvey as "fun-loving cheeky-chappy"
Since Harvey's death, his family have campaigned against knife crime, focusing in particular on installing knife detection arches in schools. Following Khan's conviction, Harvey's sister Sophie Willgoose said outside court: "Harvey was full of life, warm, funny and caring with a unique ability to bring people together. He was deeply loved by his family, cherished by his friends, and respected by all who knew him."
She added: "This tragedy has not only devastated our family, but has rippled across the country. People everywhere continue to grieve the loss of our beautiful boy."
Caroline Willgoose and her husband Mark have become prominent voices in the campaign against knife violence. Mrs Willgoose said she wants Harvey remembered not as the boy who was stabbed at school, but as the person he was.
"I hate that saying 'Harvey Willgoose, the pupil that was stabbed to death at school'. He'd hate that," she said. "I want him to be remembered as the fun-loving kid, cheeky-chappy, sociable kid that he was."
She described her son as "a million miles an hour" and "a happy chappy" who "loved life" and had "loads of friends." Mrs Willgoose said she only realised after his death how well-known Harvey was beyond Sheffield — largely through his devotion to Sheffield United Football Club.
"He's just left a big empty hole," she said.
Source: The Sun