William Cornick should never be released from prison, for his horrific and brutal attack on Ann Maguire. The judge has sentenced him to a minimum sentence of 20 years, no doubt based on his age. However, despite his teenage years and the stupidity and thoughtlessness that comes from these years his crime was so appalling he should spend the rest of his life in prison.
The only country that sentences children to full life terms is the USA, that is called a injustice by most of the world , because it does not allow for rehabilitation of children. William Cornick can not be rehabilitated for this crime and despite what the European court of human rights will say , he should serve the maximum sentence available under English law "Life in Prison".
The parents of Cornick must be living in a nightmare, wondering how they have bred such an evil child and thinking they are to blame for not stopping him from committing this heinous crime.