<sod >The teenager, who cannot be named, was arrested after 50-year-old Vincent Uzomah was stabbed in the stomach at Dixons Kings Academy in Bradford on June< eod>< sod > The teenager, who cannot be named, was arrested after he stabbed 50-year-old Uzomah in a science lesson with a knife he had in the Dixons Kings Academy on 11 June.< eod>