Schoolboy killer given life in prison
Senseless violence: Mohammed Umar Khan, who can now be named, took a 13cm hunting knife to school in Sheffield and used it to kill 15-year-old Harvey Willgoose outside the cafeteria. Senseless violence: Mohammed Umar Khan, who can now be named, took a 13cm hunting knife to school in Sheffield and used it to kill 15-year-old Harvey Willgoose outside the cafeteria.