On May 7, 2025, a press conference held by the family of the late actress Kim Sae-ron in Gangnam-gu, Seoul, revealed startling information related to her case, which they termed a potential “murder teacher case.” The event included CEO Kim Se-eui from the YouTube channel Horizontal Sero Research Institute, who brought attention to details regarding the circumstances surrounding Kim Sae-ron’s death, particularly focusing on discussions with an informant based in New Jersey.
The family shared that the informant had been severely attacked, experiencing nine stab wounds on the neck on May 1, allegedly by individuals linked to Korea and China. This prompted the family to disclose partial information, citing fears for their safety. The investigation into Kim Sae-ron’s case is currently being handled by the U.S. Federal Bureau of Investigation rather than the local New Jersey authorities.
Concerns about the safety of both the informant and Kim Sae-ron’s family have arisen, with reports of suspicious vehicles observed near the residence of Kim Sae-ron’s aunt. The family has requested police protection due to ongoing threats, including death threats against the informant. Kim Se-eui announced that recordings of conversations involving the late actress would be released once secured.
During the press conference, it was also disclosed that the informant, referred to as Mr. A, had recorded conversations with Kim Sae-ron, which include serious allegations against actor Kim Soo-hyun. The case has attracted attention due to its complexities, as it intertwines relationships, legal disputes, and past controversies.
Previously, Kim Sae-ron’s family had held two press conferences in March 2025, seeking acknowledgment and an apology from Kim Soo-hyun regarding their past relationship, claiming she was underage during their time together. Following a drunk driving incident involving Kim Sae-ron, Kim Soo-hyun reportedly reimbursed her agency a sum of 700 million won for various expenses associated with the incident. The family aims to address the circumstances surrounding their connection while also highlighting harassment from media figures.
In the wake of these revelations, LKB & Partners, representing Kim Soo-hyun, filed defamation lawsuits against the bereaved family and others, seeking 12 billion won in damages. Furthermore, Kim Soo-hyun himself lodged a complaint against Kim Se-eui for alleged stalking, resulting in the Seoul Central District Court ordering a temporary measure to prevent further harassment.
This ongoing situation highlights the severe implications of public and private relationships within the entertainment industry, and with the developments still unfolding, there is potential for significant legal and reputational repercussions for those involved. The call for transparency from Kim Sae-ron’s family reflects a broader demand for accountability in celebrity interactions, and as the investigation proceeds, it offers a chance for a critical examination of the dynamics at play in these high-profile relationships.