The Jang Yun-gi Murder Case Just Got Bigger: Now the Suspect’s Uncle Is Under Investigation Too

What began as a horrifying murder case in Gwangju has spiraled into one of the most alarming police corruption scandals South Korea has seen in years. After it emerged that Jang Yun-gi’s father — an active-duty senior police officer — allegedly destroyed key evidence, investigators have now arrested the lead detective on the case and are probing whether Jang’s uncle was also involved. On July 7, prosecutors raided the Gwangju Gwangsan Police Station from top to bottom, signaling they are going after whoever gave the orders. Here’s a full breakdown of how this case unraveled.

What Happened on the Morning of May 5, 2025?

In the early hours of May 5, 2025, a 17-year-old high school student named Lee Chae-won was walking home in Gwangsan District, Gwangju, when she was abducted by a stranger. The perpetrator, 23-year-old Jang Yun-gi, had followed her in his SUV for 15 minutes before pulling up with a rear door open and forcing her inside. He then sexually assaulted and fatally stabbed her. He was arrested just 11 hours later but initially claimed the attack was “impulsive and unplanned.”

During the initial investigation, police sent the case to prosecutors without including any sexual assault charges — a significant oversight that would later look far more sinister. Prosecutors who conducted their own follow-up investigation found substantial evidence that the attack was premeditated sexual violence, and Jang was ultimately indicted on aggravated rape-murder charges under South Korea’s Special Act on Sexual Violence Punishment. The supplementary probe also revealed that Jang had secretly filmed seven female students while working as a social service worker at a local children’s center before the murder.

A Father Who Cleaned Up the Crime: The Evidence Destruction by a Police Inspector

The scandal erupted on July 1, when the Gwangju District Prosecutors’ Office announced that Jang Yun-gi’s father — a serving police inspector identified by his surname Jang — had personally visited his son’s studio apartment and disposed of key pieces of evidence. Among the items he removed were several damaged sex dolls and multiple old mobile phones that had belonged to Jang Yun-gi. According to reports, the inspector had called the landlord and said something to the effect of: “There are some embarrassing things in the apartment I need to clean up. Don’t worry about the deposit.”

What made this possible was even more troubling. During the initial investigation, responding officers had spotted the sex dolls inside the apartment and left them there without seizing them as evidence. Jang Yun-gi’s SUV — which carried the victim’s blood and DNA — was returned to his father the very next day after the arrest, without the forensic DNA report ever being forwarded to prosecutors. The implication was clear: someone inside the investigation had tipped off the father, giving him a window to get rid of the evidence before prosecutors could secure it.

The Lead Investigator Is Arrested: Signs of a Coordinated Cover-Up

On July 6, the head of the violent crimes investigation team at Gwangsan Police Station, a 59-year-old inspector surnamed Park, was taken into emergency custody on charges of evidence destruction and leaking confidential investigative information. Prosecutors allege that he found cable ties inside Jang Yun-gi’s vehicle — critical physical evidence directly linking the crime to premeditated kidnapping — and disposed of them rather than logging them as evidence. Without those cable ties, securing a conviction for rape-murder would have been significantly harder.

According to SBS reporting, a member of the investigation team called Inspector Jang (the father) and told him in advance that arrest warrants and search warrants were about to be filed — even revealing his son’s home address and door lock code. Recorded internal conversations reportedly included lines like, “Everyone knows Jang Yun-gi is from a police family, but we’re all keeping quiet about it,” and “We were told to keep our mouths shut.” This was no longer looking like one bad actor. It was starting to look like an organized, institutional suppression of evidence.

Now the Uncle Too: Channel A Reports the Investigation Is Widening

A Channel A exclusive report revealed that the investigation has now extended to Jang Yun-gi’s uncle, who also reportedly has ties to law enforcement. Authorities are looking into whether the uncle played any role in the cover-up. While specific allegations have not yet been made public, the revelation is significant — it shuts the door on the narrative that this was just one rogue father acting alone. The fact that investigators are treating the uncle’s potential involvement seriously suggests they believe the family’s police connections may have been collectively mobilized to suppress the case.

On July 7, prosecutors executed sweeping raids on the criminal investigations division and the women and youth crimes unit at Gwangsan Police Station, as well as the personal residences of investigators. Under South Korean law, prosecutors have the authority to directly investigate crimes committed by police officers, meaning this has now officially become a full-scale criminal investigation targeting the police institution itself. Investigators are also looking into who gave the orders — since the father and the lead investigator had no formal chain of command between them, something or someone may have connected them.

Why This Case Matters: There’s No Law to Stop a Police Family From Covering Up a Crime

One of the most unsettling aspects of this case is that Jang Yun-gi’s father has not been criminally charged — because under Article 151 of South Korea’s Criminal Act, a family member who destroys evidence to protect a relative is legally exempt from prosecution. This “family member exemption” has long been controversial, but this case may finally force lawmakers to act. Just as the similarly criticized family exemption for property crimes was partially reformed after a Constitutional Court challenge, legal experts and civic groups are now calling for a full review of the evidence-destruction exemption — especially when the family member in question holds public authority as a law enforcement officer. South Korea’s National Police Agency has also announced it will formally review measures to increase transparency when officers’ family members are involved in criminal investigations.

Jang Yun-gi’s trial is currently underway at the Gwangju District Court. Whatever the final verdict, this case has already become a damning indictment of how deeply the instinct to protect one’s own can corrupt a system built on public trust. Whether or not Jang’s uncle is ultimately implicated, the events surrounding this case — the destroyed evidence, the leaked warrants, the silent officers — have made one thing impossible to ignore: South Korea’s police system urgently needs structural reform to prevent this kind of institutional self-protection from happening again.

Sources

• [Exclusive] Damaged sex dolls found in Jang Yun-gi’s apartment — his police officer father disposed of them – SBS
• [Exclusive] Jang Yun-gi’s father was stationed at the same police station that investigated his son until last year – SBS
• Lead investigator personally destroyed key evidence in the Jang Yun-gi case – Kyunghyang Shinmun
• [Exclusive] “There’s no reason the lead investigator would follow Jang’s father on his own” — prosecutors probe possibility of higher-up involvement – Kyunghyang Shinmun
• Prosecutors launch forced investigation into alleged collusion between Jang Yun-gi’s father and police investigation team – Financial News