秋葉原無差別殺傷事件あきはばらむさべつさっしょうじけんakihabaramusabetsusasshoujikennounAkihabara massacre (June 8, 2008)Kanji in this word事matter件affair傷wound別separate原meadow差distinction殺kill無nothingness秋autumn葉leafStudy it in Yanamino