Yamaji Yukio, August 21, 1983 - July 28, 2009) was a
Japanese triple killer. He murdered his own mother in 2000, and also
murdered a 27-year-old woman and her 19-year-old sister in 2005.
Yamaji was born into a poor family and his father
died of cirrhosis in January 1995. After he graduated from junior high
school, he did not enter high school and began working at the newspaper
store. He killed his 50-year-old mother with a metal baseball bat in
Yamaguchi, Yamaguchi Prefecture on July 29, 2000 at the age of 16. He
called the police and was arrested on July 31. One of his motives was
his mother's silent telephone to the woman who he fell in love with.
Another motive was his mother's debt. He was paroled in October 2003 and
was released officially in March 2004. However, his work after the
release was illegal.
On November 17, 2005, Yamaji raped a 27-year-old
woman and her 19-year-old sister and murdered them with a knife, in
Naniwa, Osaka. The two victims had never met Yamaji. He was arrested on
December 5, 2005. He said 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, Osaka district court sentenced
him to death. His defense made an appeal but he retracted the appeal on
May 31, 2007. He was executed by hanging in Osaka on July 28, 2009.