Chilling moment weapon-obsessed teen dances with knife in school canteen after slaughtering boy, 15 – as he’s jailed

THIS is the moment a weapon-obsessed teen danced with a knife in a school canteen after slaughtering a 15-year-old boy. Harvey Willgoose was ambushed in a courtyard by Mohammed Umar Khan while on his lunchbreak at All Saints Catholic High School in Sheffield. He was stabbed twice - including once in the heart - by...