Gyeongsan Police Station in North Gyeongsang Province forwarded 30-year-old Chinese university lecturer Jeong Chang-seong to prosecutors today (the 4th) under arrest on charges of murdering a Chinese international student who took his class and abandoning her remains across various parts of the country.
Jeong was arrested on the 25th of last month on charges of murdering a female Chinese international student in her 20s, surnamed A, in his studio apartment in Hayang-eup, Gyeongsan, in the early morning of August 20th last month, mutilating her body, and abandoning the remains in wooded areas and garbage dumps in areas including Gunpo, Gyeonggi Province, and Gyeongju, North Gyeongsang Province.
Jeong also faces charges of attempting to disrupt the police investigation by making a false report to the police, impersonating the female victim, and traveling to Dongdaegu Station with the victim's mobile phone before turning it off.
Police applied five charges against Jeong, including murder and mutilation of a corpse.
Police stated that their investigation revealed Jeong was in a romantic relationship with the victim, and when the victim threatened to report their relationship to the university during an argument, he killed her out of concern that he would lose his job.
Jeong scored below 25 points on a psychopathy (antisocial personality disorder) diagnostic test conducted by the police last weekend, resulting in a conclusion that he does not meet the classification criteria.
The police administered the diagnostic test to assess antisocial traits, taking into consideration that Jeong brutally mutilated and abandoned the victim's body after killing her.
Two profilers were deployed to interview Jeong, and his personality traits—such as impulsivity, lack of empathy, and irresponsibility—were quantified through his responses to 20 questions.
In South Korea, individuals are typically classified as psychopaths if they score 25 points or higher out of a possible 40 on the psychopathy checklist.
A police official stated, "We plan to continue searching for the victim's remains even after forwarding the suspect to the prosecution."
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