Japan has carried out the execution of a man infamously known as the “Twitter Killer,” whose crimes shocked the nation over the past decade. Convicted of brutally murdering nine victims, his actions triggered widespread fear and a reevaluation of social media’s role in crime prevention. Authorities confirmed the execution took place quietly without prior public announcement, following Japan’s strict legal protocols.

The case exposed several challenges in monitoring online interactions used as tools for manipulation and planning by criminals. Among the key details of the investigation and subsequent judicial process were:

  • Crime timeline: Series of incidents spanning from 2012 to 2018.
  • Modus operandi: Victims lured via anonymous social media messages.
  • Judicial outcome: Multiple life sentences preceding the death penalty ruling.
  • Public reaction: Increased pressure on lawmakers for internet and mental…