JUSTICE: A 16-year-old boy who stabbed a teacher to death in a "monumental act of cowardice and evil" has been warned he may never be released from prison.

Mr Justice Coulson told Will Cornick - who stabbed Ann Maguire, 61, seven times at Corpus Christi Catholic College in Leeds in April - that he must serve at least 20 years in custody before being considered for release.

But he warned Cornick, who was 15 at the time of the murder that "it's quite possible that day may never come."