This article revisits the unsolved murder case of a Sophia University student, 29 years after the horrific incident. The victim's sister continues her plea for justice and resolution. Despite the passage of time, investigators remain hopeful of uncovering new leads. The unresolved case has raised concerns about investigative techniques and the statute of limitations in the Japanese criminal justice system.

In Japan, cold cases such as this continue to haunt the collective conscious of society. Given the relatively low crime rate in the country, unresolved major crime cases draw significant public attention. People generally respect law enforcement efforts but also criticize the insufficient use of advanced forensic techniques. Furthermore, there's a social interest in revising the statute of limitations law in Japan.

In contrast to Japan, the US and EU have a more liberal stance on the use of forensic techniques and DNA testing, which often help in solving cold cases. Additionally, the US doesn't have a statute of limitations for serious crimes like murder. The view on these legal issues is reflective of the emphasis on victims' rights and seeking justice, regardless of the time that may have passed.