Police on Friday afternoon named the man suspected of causing the fatal fire as Shinji Aoba, a 41-year-old with a criminal record, Japanese national public broadcaster NHK reported. The resident of Saitama City, near Tokyo, was convicted of robbing a convenience store in 2012 and served three-and-a-half years in prison, the report said. The man was seen screaming "Die!" by witnesses as he burst into the three-story studio, splashing a flammable liquid from a bucket before starting the blaze. Police say he started the fire because he claimed the company stole his idea for a novel.