South Yorkshire PoliceHarvey was described as a "cheeky chappy" by his teachersThe parents of a schoolboy who was murdered by a fellow pupil on his lunchbreak have called for an order protecting the identity of his 15-year-old killer to be lifted.Harvey Willgoose, who was also 15, died when he was stabbed in the heart with a hunting knife at All Saints Catholic High School in Sheffield on 3 February.Harvey's killer cannot be named because of his age. However, the BBC and other media have applied to have the anonymity order protecting his identity lifted.Harvey's mum Caroline said her son's name had been "tarnished" throughout the trial, adding: "He hasn't been able to speak up for himself and he's been named. The defendant should be as well."The trial judge, Mrs Justice Ellenbogen, is expected to make a decision on whether to lift the order when the 15-year-old is sentenced in October.Harvey's parents, who have set up a youth club in his memory, reiterated their earlier call to install knife arches in schools."Get knife arches in, then get educating children about the pure devastation that knife crime brings," said Mrs Willgoose."Children know there are knives in schools. Something needs to be done."Mrs Willgoose, who has campaigned against knife crime since her son's death, added: "If you don't think there's a problem, ask your child if they have ever known of anybody bringing a knife into school."I think parents would be very interested in their answer."Harvey's dad Mark said the family had previously had met with Home Secretary Yvette Cooper to discuss the issue.Listen to highlights from South Yorkshire on BBC Sounds, catch up with the latest episode of Look North.More on this storyBoy, 15, found guilty of murdering fellow pupilSnapchat row and a hidden knife: The final hours before Harvey Willgoose's murder