Japan has executed Takahiro Shiraishi, dubbed the "Twitter killer," who was convicted of murdering and dismembering nine individuals in 2017. Shiraishi lured his victims, many of whom had expressed suicidal ideation on social media, to his apartment. He was sentenced to death in 2020. The case sparked widespread debate about online safety and the vulnerability of individuals sharing their struggles online. The execution marks the end of a high-profile case that shocked the nation and raised questions about Japan's capital punishment system.