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

Takahiro Shiraishi was sentenced to death for his 2017 strangling and dismembering of eight women and one man in his apartment near Tokyo.

Takahiro Shiraishi, known as the "Twitter killer," was sentenced to death in 2020 for the killings in 2017 of the nine victims, most of whom had posted suicidal thoughts on social media.