Psychopath Diagnosis Results of Jeong Yoo-jeong Higher Than Serial Killer

Jeong Yujeong States 'Murder Impulse' as Motive
Psychopath Test Score 28 Points... Higher Than Kang Hosoon

Jeong Yujeong (23), who murdered a woman in her 20s she met through an online tutoring application and disposed of the body, has been found to have a psychopathy (antisocial personality disorder) score exceeding the psychopathy threshold of 25 points.

According to the Busan Metropolitan Police Agency on the 7th, a psychopathy diagnostic test (PCL-R) conducted on Jeong Yujeong showed a psychopathy score in the high 20s.

This score is higher than that of serial killer Kang Ho-soon, who was sentenced to death for killing 10 women in the southwestern Gyeonggi region between 2006 and 2008, who scored 27 points.

The psychopathy diagnostic test consists of 20 items with a total score of 40 points, and in Korea, a score of 25 or higher is generally considered indicative of psychopathy. In addition to the score, the diagnosis is comprehensively made by clinical experts based on past behavior, developmental history, psychiatric diagnoses, previous criminal acts, and profiler interview results.

Earlier, Jeong Yujeong confessed during police interrogation, saying, "I felt an impulse to actually commit murder while watching crime and investigation programs on TV." However, the police judged the motive to be unclear and conducted the psychopathy diagnostic test as part of supplementary investigation.

[Image source=Yonhap News]

When Jeong Yujeong stated her motive as a 'murder impulse,' Professor Lee Su-jeong of the Department of Criminal Psychology at Kyonggi University pointed out on SBS Radio's 'Kim Taehyun's Political Show' on the 7th that it was similar to the 'Incheon Elementary School Student Murder Case' that occurred in 2017. She said, "That (Incheon elementary school student murder case) was ultimately a crime committed because the perpetrator wanted to try murder, having been obsessed with videos frequently showing brutal scenes."

She continued, "Therefore, if Jeong Yujeong has a similar profile to the perpetrator of the Incheon elementary school student murder case, the worldview they have is fundamentally different from the way we think logically," adding, "So Jeong Yujeong is honestly expressing what she feels, but the problem is that we do not understand it well, which might lead us to think, 'Is this a lie?'"

Jung Yoo-jung calmly walks dragging a travel suitcase (carrier) to carry the corpse immediately after the murder. Photo by KBS News Capture

No Disturbance Even Immediately After the Crime... Suspected Psychopathic Tendencies

Usually, suspects in serious crimes such as murder often show signs of confusion or anxiety in their attitude and behavior, but Jeong Yujeong was seen walking calmly after the crime, raising suspicions of psychopathic tendencies.

Previously, CCTV footage obtained by KBS from the Busan Metropolitan Police Agency showed Jeong Yujeong pulling a travel suitcase (carrier) immediately after the crime, walking with light steps without any fear or guilt.

Jeong Yujeong, who is detained in custody, is reportedly spending her time without signs of anxiety, eating all three meals a day and sleeping well inside the detention center.

This content was produced with the assistance of AI translation services.