Kim So-young, 20, who allegedly killed two men by mixing psychiatric drugs into hangover relief drinks, scored above the threshold on a psychopath diagnostic test, police confirmed.
According to police on the 9th, Kim scored 25 out of 40 points on a recently administered psychopath diagnostic test. The test comprehensively evaluates antisocial personality traits including callousness, impulsivity, and lack of empathy, with scores of 25 or above typically classified as indicating psychopathic tendencies. However, some investigators note that since the score is at the borderline level, it is difficult to definitively categorize her as a typical psychopath.
The investigation revealed Kim's crimes were meticulously planned in advance. Kim reportedly used the artificial intelligence chatbot ChatGPT to verify the lethal risks of specific drugs beforehand and gradually increased dosages as she repeated her crimes.
Her actions after the crimes have also sparked public outrage. After killing her last victim, Kim used the victim's card to order 22 sets of fried chicken to her home. Evidence also emerged that she sent a false message to the unconscious victim saying "I'm taking a taxi home" in an apparent attempt to destroy evidence.
The scope of victims may expand further. Seoul Metropolitan Police Agency Commissioner Park Jung-bo stated at a regular press briefing, "We are investigating two additional suspected cases beyond the victims already referred to prosecutors." Including this case, the total number of victims could rise to at least five.
"Due to the nature of drug crimes, there may be limitations in securing direct physical evidence, but if charges are substantiated based on circumstantial evidence and witness statements, we will pursue the investigation to the end and refer any additional crimes," Commissioner Park said.
Meanwhile, Kim, who has been transferred to prosecutors, has reportedly failed to present evidence to overturn the charges. The Seoul Northern District Prosecutors' Office released Kim's name, age, and mugshot on the afternoon of the 9th under the Serious Crime Identity Disclosure Act. The Identity Disclosure Review Committee decided on the release after comprehensively considering the brutality of the crime methods, the severity of the harm, and public interest factors including citizens' right to know and crime prevention.