Futoshi Matsunaga

Futoshi Matsunaga (松永 太, Matsunaga Futoshi, born April 28, 1961) is a Japanese serial killer who both defrauded and tortured his victims in what is collectively known as the Kitakyūshū Serial Murder Incident (Japanese: 北九州連続殺人事件). Matsunaga was convicted of six counts of murder and one count of manslaughter between 1996 and 1998 and sentenced to death. He murdered his victims with an accomplice, Junko Ogata, who received a life sentence.

Matsunaga's crimes were so atrocious that most Japanese media were not willing to report the details. The Japan Times reported that prosecutors said the case is without comparison in the criminal history of Japan. Several writers, including Ryūzō Saki, published the details of the crimes.