19 "Matsuda" Transcription: "Matsuda" (Japanese: 松田) Eiko Nishi Yasuko Kobayashi Michio Fukuda February 21, 2007 (2007-02-21) March 2, 2008 Feeling inferior at his lack of participation in the Kira case, Matsuda decides to snoop around the Yotsuba Group and do his own research.