Yukio Yamaji (山地 悠紀夫, Yamaji Yukio, August 21, 1983 – July 28, 2009) was a Japanese serial killer. He murdered his own mother in 2000, was imprisoned, and then paroled in 2003. In 2005, two years after his release, he raped and then murdered a 27-year-old woman and her 19-year-old sister, for which he was sentenced to death. He was executed in 2009.
|Died||July 28, 2009 (aged 25)|
|Cause of death||Execution by hanging|
|Conviction(s)||December 13, 2006|
|Criminal charge||Matricide, double homicide, rape|
Yamaji killed his 50-year-old mother with a metal baseball bat in Yamaguchi city, Yamaguchi Prefecture at age 16 on July 29, 2000. He called the police and was arrested on July 31, 2000. He stated that his motives to commit matricide were his mother's silent telephone calls to the woman with whom he had fallen in love and his mother's mounting debt. He was paroled in October 2003.
On November 17, 2005, Yamaji raped and murdered a 27-year-old woman and her 19-year-old sister with a knife, in Naniwa, Osaka. He then set fire to their apartment and fled. The two victims had never met Yamaji before. He was arrested on December 5, 2005. While in custody, he stated to the Osaka police, "I could not forget the feeling when I killed my mother, and wanted to see human blood."
On December 13, 2006, the Osaka District Court sentenced him to death. His defense launched an appeal, but according to his lawyers he retracted it because he was reluctant to pursue leniency. He was executed at the Osaka Detention House alongside Japanese serial killer Hiroshi Maeue on July 28, 2009. At the age of 25, he is the youngest murderer executed in Japan since 1972.
- "Man to hang for sisters' murders". The Japan Times Online. 14 December 2006. Retrieved 17 February 2012.
- "Double-killer lets death sentence stand". The Japan Times Online. 2 June 2007. Retrieved 17 February 2012.
- "Japan executes three for multiple murders". AFP. 27 July 2009. Retrieved 17 February 2012.
- (in Japanese) 山地悠紀夫事件