In a shocking turn of events, Japan has carried out the execution of Takahiro Shiraishi, infamous for the gruesome murders of nine individuals in 2017, highlighting key societal issues surrounding mental health and social media safety.
Japan Executes Notorious 'Twitter Killer' Takahiro Shiraishi for Gruesome Murders

Japan Executes Notorious 'Twitter Killer' Takahiro Shiraishi for Gruesome Murders
Japan's capital punishment reignites debate over online safety and mental health
Eight hours ago, Japan executed Takahiro Shiraishi, the man dubbed the "Twitter killer," who murdered nine people in a series of horrific crimes that sent shockwaves through the nation. This marked the first instance of capital punishment since 2022, inciting renewed discussions on online safety and suicide awareness.
Shiraishi, who was 30 at the time of the murders, lured his victims—primarily young women aged 15 to 26—via social media, specifically Twitter. He persuaded them to come to his apartment under the pretense of offering assistance in ending their lives, with some victims believing he would die alongside them. His Twitter bio ominously stated, "I want to help people who are really in pain. Please DM me anytime."
The murders were uncovered in October 2017 when police, during a search for one of the victims, found body parts hidden in coolers and toolboxes in his home, leading to the moniker "house of horrors." Shiraishi eventually confessed to the killings but attempted to defend his actions by claiming consent from his victims—claims his own defense team later disputed.
The case culminated in a high-profile trial that attracted hundreds of onlookers during his sentencing in December 2020, where he was ultimately sentenced to death. The uproar over the case prompted Twitter to revise its policies to prohibit any forms of content that promote suicide or self-harm.
Japan's Justice Minister Keisuke Suzuki, who authorized the execution, emphasized that Shiraishi acted out of selfish desires, causing significant societal unrest and fear. The execution serves as a stark reminder of the darker sides of mental health crises exacerbated by vulnerable individuals seeking help online.
For those struggling with emotional distress, various organizations provide support and guidance, including resources for assistance in Japan and the UK.
Shiraishi, who was 30 at the time of the murders, lured his victims—primarily young women aged 15 to 26—via social media, specifically Twitter. He persuaded them to come to his apartment under the pretense of offering assistance in ending their lives, with some victims believing he would die alongside them. His Twitter bio ominously stated, "I want to help people who are really in pain. Please DM me anytime."
The murders were uncovered in October 2017 when police, during a search for one of the victims, found body parts hidden in coolers and toolboxes in his home, leading to the moniker "house of horrors." Shiraishi eventually confessed to the killings but attempted to defend his actions by claiming consent from his victims—claims his own defense team later disputed.
The case culminated in a high-profile trial that attracted hundreds of onlookers during his sentencing in December 2020, where he was ultimately sentenced to death. The uproar over the case prompted Twitter to revise its policies to prohibit any forms of content that promote suicide or self-harm.
Japan's Justice Minister Keisuke Suzuki, who authorized the execution, emphasized that Shiraishi acted out of selfish desires, causing significant societal unrest and fear. The execution serves as a stark reminder of the darker sides of mental health crises exacerbated by vulnerable individuals seeking help online.
For those struggling with emotional distress, various organizations provide support and guidance, including resources for assistance in Japan and the UK.