A 21-year-old South Korean woman was charged with the murders of two men in Seoul, according to a recent BBC report, after investigators discovered evidence that she had looked into the risks of combining alcohol and drugs through ChatGPT.

The report by BBC further detailed that a review of her phone showed several queries sent to ChatGPT, including “What happens if you take sleeping pills with alcohol?” “Could it kill someone?” and “How many do you need to take for it to be dangerous?”

Kim, identified only by her surname, acknowledged that she had mixed prescribed benzodiazepine-based sedatives into the men’s drinks. She reportedly told police she did not expect the combination to be fatal. Investigators, however, were quoted as saying she was “fully aware that consuming alcohol together with drugs could result in death,” reports the BBC.

Evidently, she was first taken into custody on February 11 on the less severe charge of inflicting bodily injury resulting in death. At that point, two men had died and a third had been left unconscious following separate encounters with her at motels.

According to police accounts included in the report, the first alleged incident happened in Suyu-dong, Gangbuk-gu, Seoul, on January 28. About two hours after checking into a motel with a man in his 20s, Kim reportedly departed by herself. The next day, the man was found dead in the room. Authorities claim that on February 9, a second man in his 20s was murdered similarly at a different motel within the same locality.

Additionally, a prior attempted attack in Namyangju, Gyeonggi Province, in December of last year is suspected by investigators. In that instance, Kim allegedly offered her ex-partner a sedative-laced drink in the parking lot of a café, rendering him unconscious.

Police claim that Kim began to formulate her drinks with more potent dosages of the medication after her first victim regained consciousness.

The investigation is currently ongoing, with a focus on unidentified victims.