Korea Seoul a twenty years old female killed five people by use chat GPT

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Using ChatGPT to assist in murder, a 20-year-old girl murdered five people, yet her fan base exploded? Through meticulously crafted selfies and ChatGPT, she orchestrated a series of shocking murders that will rock South Korea in 2026. She relentlessly sought prey on dating apps, using AI to precisely calculate her methods, repeatedly refining them until she watched her victims' bodies grow cold, finally completing her own murder script. The meticulously crafted selfies were, in reality, bait waiting to lure her next victim.

On February 10, 2026, at 5:30 PM, at a motel in Suyu-dong, Gangbuk-gu, Seoul, South Korea, staff discovered a room remained vacant past check-out time. Knocking on the door went unanswered. Upon opening the door to clean, they found the occupant still lying in bed. Upon closer inspection, the man's face was ashen, his lips purple, and white foam mixed with yellow liquid was emanating from his mouth and nose; he was clearly dead. Police arrived at the scene and confirmed the 27-year-old man's death. There were no signs of external injury or struggle on his body; the initial assessment was poisoning. However, only fried chicken boxes and soju bottles were found at the scene; no medicine or packaging was discovered.

Police reviewed surveillance footage and found that the deceased had entered a hotel hand-in-hand with a woman the night before the incident, behaving intimately. Only two hours after entering the room, the woman left alone with a black plastic bag, taking a taxi. The body wasn't discovered until 19 hours later. The taxi driver recalled that she immediately said "Get out of here quickly" as soon as she got in the car, even though the destination was only 3 kilometers away, leaving a strong impression on him.

Further investigations by the police led to unease, as this was not an isolated incident; similar cases had occurred repeatedly. Several months earlier, on December 14, 2025, a 22-year-old man in Namyangju, Gyeonggi Province, reported that after a date with his newly acquainted girlfriend, he drank a hangover cure given to him by her and fell into a coma. He woke up in the hospital, but his girlfriend was nowhere to be found. Police summoned the woman, 20-year-old Kim Soo-young, who claimed she accidentally gave the man a drink laced with sleeping pills. Since the man was unharmed, the case was closed as negligence and she was not punished.

On January 28, 2026, a 29-year-old man was found dead under mysterious circumstances in another motel in Gangbuk-gu, Seoul. Police investigations revealed that Kim Soo-young was the last person the deceased had contact with, and she was immediately listed as a suspect. On February 6, police summoned her non-coercive, but she requested a postponement citing illness, and they agreed to appear a week later. However, only four days later, on February 10, the motel murder occurred, with a 27-year-old man becoming the third victim.

Forensic examination revealed high concentrations of benzodiazepines in the deceased's body. Benzodiazepines are central nervous system depressants that, when mixed with alcohol, have an additive effect, potentially leading to respiratory depression, confusion, or even death. For example, comedy legend Charlie Chaplin died after taking such drugs while intoxicated. Police discovered that the modus operandi from the initial report to subsequent cases was identical, clearly indicating a series of crimes with escalating methods, progressing from incapacitation to death.

On the evening of February 10th, police arrested Kim Soo-young at her home, seizing large quantities of sleeping pills and antidepressants—prescriptions she had obtained from different hospitals under the pretense of insomnia. They also found powdered benzodiazepines, intended for quick dissolution in drinks. Evidence showed that her drugging was not accidental, but a premeditated and routine practice.

Initially, police did not release her appearance, but netizens used blurry photos to uncover her social media accounts, discovering her online activity. She used photos to screen potential partners, developing relationships through chat and offline meetings. Once in enclosed spaces, she would administer spiked drinks. Even more horrifying, she continued to date and commit crimes during the week she awaited summons after being suspected by police.

After her arrest, she confessed to drugging but denied any motive, claiming it was an accident. Police recovered deleted data from her phone and discovered crucial evidence—her chat logs with ChatGPT. Perhaps because the first attempt at drugging failed, she used ChatGPT to repeatedly confirm the drug's side effects: what would happen if the dosage was increased, the dangers of taking the drug while intoxicated, and what dosage would be fatal. ChatGPT explicitly warned of the death risks of mixing drugs, but she completely ignored it, doubling the dosage and escalating her methods in subsequent cases.

With irrefutable evidence, Kim Soo-young finally confessed: she targeted her victims on dating apps, prepared two identical bottles of drinks, one normal and the other laced with a large amount of drug powder, and marked the caps. During dates, she encouraged her targets to drink more, and upon entering a hotel, she gave them the spiked "hangover cure" while drinking the normal one herself. Her targets became unconscious under the influence of alcohol, and she observed them until they vomited, had difficulty breathing, convulsed, and finally showed no signs of life, before cleaning up the scene and taking the bottles. To mislead the investigation, she would use the victims' credit cards to pay for delivery, take the cash, and send messages to create a false sense of warmth, such as, "I see you're asleep, I'm leaving now. Remember to eat something when you wake up."

After committing the crimes, she showed no emotional distress, continuing to upload selfies and search for targets, even sending dating messages 30 minutes before her arrest. After the case was exposed, two more victims came forward: in October 2025, a 27-year-old man was hospitalized after drinking her beverage; in mid-January 2026, another 34-year-old man also fell into a coma after drinking her hangover cure while singing. Initially, neither of them pursued the matter, only realizing their fear after seeing the news.

Currently, police have confirmed that she drugged five people, two of whom died. Due to the strong malice and covert, continuous methods of her crimes, on March 9, 2026, the Seoul Northern District Prosecutors' Office, with the court's permission, released her appearance and information. Public opinion was outraged; she was indeed the person identified by netizens through online searches, but the discrepancies between her social media photos and her actual appearance suggested ulterior motives for photo manipulation. Before her appearance was revealed, netizens were abuzz with discussion about her looks, with some even making outrageous comments like "she should be acquitted" and "we should raise funds to help her." After the reveal, the public opinion shifted dramatically, with many now saying they were "deceived" and "she should be charged with fraud," focusing entirely on her appearance rather than the crime.

The prosecution decided to reveal her appearance due to the cruelty of the case and her dangerousness, but still protected her other privacy. Due to a surge in her social media followers, her account was set to private with her consent. On March 10, 2026, the Seoul Northern District Prosecutors' Office indicted her on charges of "murder," "aggravation," and "violation of the Narcotics Control Act." In South Korea, murder carries a minimum sentence of five years. If subsequently convicted of "robbery-murder" (murder for financial gain), the penalty can be death, life imprisonment, or more than ten years in prison. The prosecution described her as suffering from childhood abuse at the hands of her father, which prevented her from emotionally socializing, leading to an egocentric personality and crimes committed to satisfy her consumer desires.

Kim Soo-young scored 25 out of 40 on the South Korean police's "Psychopathic Personality Diagnostic Test," just barely passing, which is one reason for the public release of her information. Criminal psychologists believe she falls into a variant of "dominant homicide" or "pleasure homicide," enjoying the process of her prey falling into a trap and suffering a painful death, treating her victims as playthings. Police continue to investigate whether there are other victims and to trace her hidden motives.

She was only 20 years old, an age when even her peers can't hide her crimes, yet she dared to commit a series of murders. Unlike highly intelligent criminals who try to conceal clues, almost every action she took pointed the way for the police: surveillance footage was crystal clear, her trip to the hospital to pick up medication left a record, text messages gave her away, and inquiries about ChatGPT became irrefutable evidence. Her clumsy fabrication methods were exposed by the forensic doctor's precise time of death data, instead becoming evidence that she knew her victims were in abnormal condition but tried to distance herself. Her attempt to use AI assistance only proved her naivety and mediocrity. Technology itself is not guilty, but even the most advanced algorithms cannot fathom the coldness of the human heart.