Japan has executed a man who murdered nine people in 2017, the first time since 2022 that the country has enacted capital punishment. The serial killings by Takahiro Shiraishi, dubbed the "Twitter , Japan executes man convicted of murder for killing and dismembering 9 people in his apartment 1 of 2 | Takahiro Shiraishi, known as the “Twitter killer,” was was executed on Friday, at the Tokyo Detention House in secrecy with nothing disclosed until the execution was done., Japan executes 'Twitter killer' who murdered and dismembered nine people Takahiro Shiraishi, known as the "Twitter killer," was sentenced to death in 2020 for the killings in 2017 of the nine victims., Takahiro Shiraishi was put to death on Friday, eight years after body parts were found in coolers at his home outside Tokyo. It was Japan’s first execution in years., 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., Japan executes by hanging ‘Twitter killer’ who murdered 9 Takahiro Shiraishi was hanged for the murders of eight women and one man whose body parts he concealed in his small apartment..