The Tokyo High Court on Tuesday upheld a life sentence for a man who stalked and played a part in the slaying of a 21-year-old woman who had broken off a relationship with his brother.

The sensational slaying led to establishment of an antistalking law and drew condemnation of police who ignored warnings from the victim.

The court Tuesday deemed Takeshi Komatsu the ringleader in the murder of Shiori Ino, who was fatally stabbed outside JR Okegawa Station in Saitama Prefecture in October 1999 by his accomplice, Yoshifumi Kubota.