article_snippet: Suspect was named by police as Tatsuhiko Hirano, an unemployed man reportedly described as a 'hikikomori' - or social misfit.
article_snippet: Hirano lives in the area with Hirano father and grandmother, Jiji Press reported.
article_snippet: Locals told the agency Hirano rarely leaves Hirano home and has largely been isolated from society since Hirano school days.
article_snippet: The phenomenon of so-called 'hikikomori' -- literally 'the withdrawn' -- rears its head fairly frequently in Japan.
highlights_snippet: Suspect has been described in Japan as a 'hikikomori' - literally 'the withdrawn'
  Suspect Twitter account had the address of the homicides and a map of scene .
  