Japanese man hangs himself at home in Hanoi Crowne Plaza Building where the Japanese was found dead on Aug 19, 2013. Tuoi Tre A Japanese national hanged himself at his residential home in the Crowne Plaza building in Hanoi’s Tu Liem district on Monday morning. The deceased is Koji Shima, 55, a specialist at Hoya Glass Disk Vietnam, headquartered in the Thang Long industrial zone in Kim Chung commune, Dong Anh district. It was said that Shima had suffered from depression and stomachaches for many years. Local police found bottles of stomach pain medication at the scene. The exact cause of his death is being investigated. TUOI TRE