Yukihiro, age 32, was Kazuya Misawa's business partner, whom Misawa killed using his craft. It was suspected, that he and Misawa weren't in good terms, which was why Misawa possibly killed him. Yukihiro was killed in an a building, owned by Misawa. It was stated by the coroner, that Yukihiro's organs were twisted off, while it was released to public, that he had been bleeding to death internally. Being hurt by blunt object. The withnesses say that Misawa cursed Yukihiro, as Misawa never even touched Yukihiro. The statement was denyied by Misawa later in the episode on a news broadcast.