The brutal and ugly truth about the criminal has been revealed.

On the 36th episode of E Channel’s ‘Brave Detectives 4’ that aired on the 30th, Incheon Nonhyeon Police Station’s Integrated Investigation Team Chief Superintendent Song Young-beom, Incheon Namdong Police Station’s Violent Crimes Team 4 Superintendent Ahn Jae-hwan, and Former Senior Superintendent Yoon Oe-chul and Superintendent Kim Jin-soo from the Scientific Investigation Unit(KCSI)appeared and revealed the investigation logs they personally solved.

The first incident began with a report that a person’s feet had been visible for two days from the window of the building across the street.Upon opening the door, the body of a young man in his 20s was found lying face down on the floor, bleeding, and around him were broken soju bottles, cigarette butts, and bloody footprints.An autopsy revealed that there were over 40 stab wounds and lacerations on the body.While the victim’s computer, cell phone, and credit cards were missing, the investigation team tracked the CCTV footage using a cancelled receipt from a karaoke bar near the victim’s house two days before the incident as a clue.Afterwards, they captured the presence of Mr.Yoo(pseudonym), who had an unusually long chin, who had been with the victim.He entered the house with the victim and then left alone.

The victim, who had been drinking with a friend the day before, went to the downtown area alone and ran into Yoo with a tout.According to the tout, Yoo asked him to “find the person who took him to the bar,” and he went to drink with the victim.Yoo, who was after the victim’s money, changed taxis several times after the crime, showing a path that seemed to disrupt the route, and also stopped by a brothel.The investigation team began investigating Yoo’s drop-off and pick-up points based on the scene where he changed clothes in the middle of the crime.

Eventually, Mr.Yoo was arrested at a goshitel.He was in his 40s and unemployed, and sold the victim’s laptop, and the victim’s DNA was detected on the contents inside.While incarcerated in a detention center, he showed strange symptoms, repeating incomprehensible words such as “He came” and “There is another being inside me.” Mr.Yoo was sentenced to 20 years in prison for alcoholic psychotic disorder and schizophrenia symptoms.

The second case introduced by KCSI started when the police found a man wandering around a residential area.He suddenly turned around when he saw a police car, and when he was questioned, his face was completely different from his ID photo.He had three cell phones in his possession, one of which was reported stolen a year ago.In the trunk of his car, three resident registration cards, an external hard drive, surgical gloves, a knife, 14 pieces of women’s underwear, and a homemade adult product were found.He had several suspended sentences.


The external hard drive contained downloaded sexual assault videos and secretly filmed photos of women’s body parts, as well as photos of 23 people’s IDs.While tracking down the owner of the IDs, the investigation team confirmed that one of the IDs was in the name of a past murder victim.At the time, the victim was found half-naked in the room, and traces of the victim’s blood were detected on a cosmetics bottle, revealing that the bottle had been used as a sexual assault tool.

After persistent persuasion by a detective who observed the criminal and identified his characteristics, the man confessed to the murder at a spring in the past, which he called his “own playground.” The victim was found naked, with a tree branch over 40cm long inserted into his body.He claimed that the victim ignored him.In particular, the criminal’s consistent behavioral pattern was revealed, such as taking the victim’s underwear in both cases.

The culprit was Lee Dae-young, who was arrested in 2009.He lived with a woman he was in a common-law relationship with and continued to lead a double life, going out every night under the pretext of delivering packages or driving for her.He claimed that he had been a victim of similar sexual assault in the past and started watching videos of sexual violence, but this was not confirmed.He revealed a distorted way of thinking that “sadistic acts are normal when many people do them,” and was sentenced to 22 years and 6 months in prison.

Hong Se-young, reporter for Donga.com projecthong@donga.com

This article is automatically translated using Google AI. If you notice any inaccuracies, please let us know at allkstar@donga.com.