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

Takahiro Shiraishi’s victims included young women considering suicide, whom he lured to his home using social media and murdered. It was Japan’s first execution since 2022.

He was dubbed the "Twitter killer" as he contacted victims via the social media platform.Justice Minister Keisuke Suzuki, who authorised Shiraishi's hanging, said he made the decision after careful examination,