Takahiro Shiraishi, 34, was hanged after murdering nine people — eight of whom were young women he targeted after they expressed suicidal thoughts on Twitter.

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

A man convicted of murder for killing and dismembering nine people in his apartment near Tokyo was executed on Friday, Japan’s Justice Ministry said. Takahiro Shiraishi, known as the Twitter killer, was sentenced to death in 2020 for the killings in 2017 of the nine victims,