Takahiro Shiraishi was executed for the killings in 2017 of nine victims, most of whom had posted suicidal thoughts on social media.

Japan executed a man on Friday who killed nine people after contacting them on social media, the first use of capital punishment in the country in nearly three years. Takahiro Shiraishi had been sentenced to death for his 2017 strangling and dismembering of eight women and one man in his apartment in Zama city in Kanagawa near Tokyo.

Japan executed a 34-year-old death row inmate known as the "Twitter Killer," who was convicted of killing nine people at his apartment south of Tokyo in 2017.