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Suspect used ChatGPT in planning drug killings in South Korea: Police
The woman, surnamed Kim, asked ChatGPT questions like what happens if one takes sleeping pills with alcohol.
PHOTO: REUTERS
Published Feb 20, 2026, 09:59 AM
Updated Feb 20, 2026, 12:38 PM
SEOUL – A woman suspected in two deaths via drug-laced drinks was found to have used ChatGPT in planning the crime, police said on Feb 19.
The suspect surnamed Kim, in her 20s, is accused of killing two men by giving them drinks containing benzodiazepines that she had been prescribed for a mental illness, according to the Seoul Gangbuk Police Station.
The police investigation revealed that she had entered questions into ChatGPT about the risks of administering the drugs, including questions like what happens if one takes sleeping pills with alcohol and how much would be considered dangerous.
Kim was referred to prosecutors under detention on murder charges rather than on charges of inflicting bodily injury resulting in death, as police concluded that she had intent to kill based on her online history. The lesser charge applies when a suspect intended to cause injury but unintentionally caused the victim’s death.
“Kim repeatedly asked questions related to drugs on ChatGPT. She was fully aware that consuming alcohol together with drugs could result in death,” an investigator said.
Kim’s first alleged attack took place at about 9.25pm on Jan 28, when she entered a motel in Suyu neighbourhood in Gangbuk district, with a man in his 20s. She left the motel alone about two hours later. The man was found dead the following day at around 6pm on a bed in a room.
Using the same method, she allegedly killed another man in his 20s on Feb 9 after the two checked into a different motel in Gangbuk together.
Prior to the serial motel drug killings, the woman allegedly attempted a similar crime in December last year. While at a cafe parking lot in Namyangju, Gyeonggi province, she gave a man in his 20s whom she was dating at the time a drink mixed with drugs, causing him to lose consciousness. He survived and was not in a life-threatening condition.
Kim admitted to police that she mixed her prescribed psychiatric medication into a hangover drink and gave it to the victims, but denied any intention to kill them.
Police have conducted a psychopathy assessment and in-depth interviews with the suspect, with the assistance of a profiler, to determine her psychological profile. The findings may be taken into account in the prosecution’s decision-making process. THE KOREA HERALD/ASIA NEWS NETWORK