Osaka court reaffirms ex-wife’s innocence in intriguing Don Juan de Kishu case

Japan’s Justiça reiterated an acquittal decision in a high-profile case involving the ex-wife of a wealthy man known as “Don Juan of Kishu”. Tribunal Superior of Osaka upheld the verdict of the trial court, which had declared Sra’s innocence. Sudo.

She was accused of murder, allegedly having administered a lethal dose of methamphetamine to her ex-husband, businessman Kosuke Nozaki, then 77 years old. The legal saga, marked by twists and turns and intense debates about the evidence presented, culminated in this new confirmation of the absence of guilt.

The appeal judgment reaffirms that the prosecution failed to prove, beyond any reasonable doubt, the defendant’s guilt, closing another chapter of one of the most notorious criminal cases of the recent Japão and highlighting the importance of the presumption of innocence.

Context of the case: the “Don Juan of Kishu”

Kosuke Nozaki, the victim in the case, was a widely known figure in the Japão for his ostentatious lifestyle and his reputation as “Don Juan of Kishu”, due to his numerous relationships with much younger women. Ele had made his fortune in real estate and the beverage industry, accumulating considerable wealth that attracted attention and made him a local celebrity in Wakayama. Sua imagem pública era a de um homem que construiu sua riqueza do zero, sem se importar em exibir seus bens e suas conquistas amorosas, o que alimentava o interesse da mídia.

The death of Nozaki in May 2018 shocked the country, not only because of its peculiarity, but also because of the initial mystery that surrounded it. The subsequent discovery of a high concentration of methamphetamine in his system turned what appeared to be a natural death into a complex homicide investigation, further attracting media and public curiosity into the details of his private life and his most recent relationships.

The accusation and circumstantial evidence

The Japanese prosecution built its case against Sra. Sudo, then 25 years old at the time of the events and Nozaki’s wife for just a few months, based on a series of circumstantial evidence. The main line of argument revolved around the suspicion that Sudo had intentionally administered the lethal drug to her husband, aiming for a millionaire inheritance. The investigations pointed to several elements:

The presence of the controlled substance in the victim’s body, without clear evidence of how it was ingested.

A search history on Sra’s smartphone. Sudo, which included terms such as “methamphetamine death.”

The short period of marriage between the two, raising suspicions about the reasons for the union.

Testimonies from people close to us that suggested a troubled relationship or financial interests were involved.

For prosecutors, the combination of these factors formed a mosaic that indicated the ex-wife’s guilt. Eles argued that the internet searches were evidence of Sudo’s premeditation and knowledge of the effects of methamphetamine before allegedly administering it to Nozaki with criminal intent.

The defense and reasonable doubt

From the beginning of the process, Sra. Sudo remained steadfast in his declaration of innocence, and his defense team worked exhaustively to deconstruct every point of the accusation. Lawyers argued that the evidence presented by the prosecution was not conclusive and that there was room for reasonable doubt, a fundamental and non-negotiable pillar of the criminal justice system.

The defense vehemently contested the interpretation of the smartphone searches, claiming that they could be the result of mere curiosity or generic research, without any criminal intent. Argumentou It is clear that there were no direct witnesses to the administration of the drug, nor unequivocal physical evidence linking Sudo to the act of fatal poisoning.

The defense’s thesis also explored the possibility that Kosuke Nozaki himself could have ingested the methamphetamine, whether accidentally or voluntarily. Essa linha de argumentação visava a semear a dúvida sobre a causa exata e o responsável pela ingestão da substância, esvaziando a acusação de homicídio e reforçando a falta de provas diretas.

First instance sentence and appeal

Tribunal Distrital of Wakayama, when delivering his first instance sentence, considered the defense’s arguments and acquitted Sra. Sudo, in a decision that surprised many at the time. The initial ruling highlighted that the prosecution was unable to rule out the “possibility that Sr. Essa the court’s assessment indicated that, despite the suspicions raised by the circumstantial evidence, legal certainty for a conviction had not been achieved, as required in homicide cases. The lack of a direct and unquestionable link between Sra. Sudo and the administration of the drug was the determining factor for the acquittal, reinforcing that the burden of proof lies entirely on the prosecution and that any reasonable doubt must favor the defendant, a basic principle of criminal justice in Japão.

The arguments of Tribunal Superior from Osaka

The decision of Tribunal Superior of Osaka, released on Monday, March 23, maintained the first instance’s line of reasoning. The appeals judges analyzed the case records and arguments from both sides in detail, concluding that Tribunal Distrital’s sentence of Wakayama was “not unreasonable.” Isso means that the higher court found no significant logical, legal or procedural flaws that would justify reversing the acquittal.

The court confirmed the interpretation that the circumstantial evidence, although suggestive and capable of raising suspicions, was not sufficient to establish Sra’s guilt. Sudo beyond a reasonable doubt required for a murder conviction. The decision reinforced the importance of robust evidence in serious crimes.

Search history and its interpretation

One of the most debated points throughout the process was the search history on Sra’s smartphone. Sudo for terms like “methamphetamine death.” The prosecution viewed this as direct evidence of intent and premeditation, indicating that it researched the effects of the drug before or during the period of Nozaki’s death. However, Tribunal Superior of Osaka presented a more cautious perspective on this digital evidence, which has become a central point of controversy.

The court noted that “people sometimes simply enter their interests and concerns” into search engines. Esta judicial observation is significant, as it devalues ​​the weight that the prosecution attributed to this isolated evidence. The court recognized that online search behavior may have multiple motivations and does not always reflect criminal intent, but may be the product of curiosity, fear, or the search for general information in a complex context of the defendant’s personal life.

The future of the process and reactions

After confirmation of the acquittal by Tribunal Superior of Osaka, Ministério Público of Osaka issued a brief statement. The agency said it will “carefully examine the sentence and respond appropriately”, indicating that the decision is not necessarily the end of the legal saga for Sra. Sudo. Há the possibility that the prosecution will appeal once again, this time to Suprema Corte of Japão, seeking a new review of the case.

Implications for the judicial system

The outcome of this case, with the second consecutive acquittal in higher courts, has significant implications for Japanese jurisprudence. Ele reforça a alta exigência do sistema legal para provas de homicídio, especialmente quando a acusação se baseia em indícios e não em evidências diretas. The decision can be seen as a reminder of the importance of the *in dubio pro reo* principle, where doubt benefits the defendant.

This case also sheds light on the challenges of interpreting digital evidence, such as internet search history. Courts’ caution in attributing criminal intent to such data could shape how future investigations and prosecutions deal with online privacy and behavior, requiring a broader context for the validity of such evidence.