Principal explains about teacher

-- Motohisa Shioyama (L), the principal of Kuroiso Kita Junior High School in Kuroiso, Tochigi Prefecture, explains to the press about the Jan. 28 alleged murder of a female teacher by her 13-year-old boy student. Police said the 26-year-old teacher was stabbed seven times and died of massive blood loss about one hour after being hospitalized.