On January 12, 2022, at 9 p.m., a 27-year-old woman was killed in a studio apartment in Seobuk-gu, Cheonan-si, Chungcheongnam-do after receiving a farewell notice from Cho Hyun-jin. This woman was previously dating Cho Hyun-jin but was notified of her breakup. On January 12, Cho Hyun-jin bought a weapon at a convenience store and entered a studio in Seongjeong-dong, Seobuk-gu, Cheonan-si, where the woman lives. There, Cho Hyun-jin locked the bathroom door and quarreled with the victim, stabbed her with a weapon at 9:40 p.m. and left there. The victim was with her mother in a studio apartment. Cho Hyun-jin took the victim to the bathroom and committed a vicious crime of stabbing him, saying, "I have one last thing to say." Later, the victim was taken to a hospital, but eventually died. Cho Hyun-jin fled quickly after the crime, but was arrested in his studio apartment about 1km away from the crime scene in 3 hours and 40 minutes. According to the victim's sister's pos

 On April 13, 2022, a knife rampage occurred at around 0:13 a.m. in Seonghwan-eup, Cheonan-si, Chungcheongnam-do. According to the police, Kim (54 years old at the time) allegedly killed two women in her 30s by wielding a weapon against two couples who had a quarrel on the sidewalk in front of a karaoke room in Seonghwan-eup, Seobuk-gu, Cheonan. The husbands of the victim couple were reportedly devastated while waiting for a chauffeur to return home after the dinner gathering. Two women in their 30s were taken to a hospital with cardiac arrest, but died, and two men were seriously injured and are being treated. Kim, a criminal with eight previous convictions, was arrested after being reported to the police while fleeing after the crime. Experts claimed that the perpetrator targeted the victims' neck, heart, and sides in the process of wielding a weapon, and that the depth of the wound suggests that it was a planned murder, not an accident. There was also testimony that the perpetra

 On September 12, 2022, the murder at the villa in Yangjeong-dong, Busanjin-gu, occurred during the Chuseok holiday, and the victims who thought they had passed away due to hardships were found to be murder. The incident occurred at 12:50 p.m. in a villa in Yangjeong-dong, where a middle school student D was sleeping in another room, and found his mother B and his high school sister C, who died on charges of six murders. Mr. D reported to the police with the help of the neighbor's owner. At the time the police were dispatched and found, B was stabbed with a weapon, and C was found to have bruises and strangled. D stated, "When I woke up, my mother died in the living room and my sister died in the room." At first, the police concluded that the victims were suicidal because they suffered from hardships and there were no signs of outside intrusion. However, the police investigated the possibility of murder, suspecting that 6 million won of precious metal disappeared from the

 On April 6, 2022, a woman in her 40s, who was arguing over investment in Busan Metropolitan City, strangled a male doctor in her 50s and buried him in a field of acquaintances in Yangsan, Gyeongsangnam-do. Later, when there were more problems, he even took out the buried body's hand and made a thumbprint to forge a stock contract. A woman in her 40s and victim B in their 50s, who met at a stock cafe, partnered, but lost the principal after failing to invest hundreds of millions of won in investment that A received, and B was in trouble to pay the office monthly rent. In addition, A implicitly used the investment as personal living expenses and failed to repay it properly. Angrily, B notified that she would consult with A's husband if she did not return 100 million won by March 28. If this is revealed to her husband, A decides to kill B, judging that there is a possibility of divorce. In advance, he lied about planting trees in a field of an acquaintance in Yangsan-si, Gyeongsa

 On June 6, 2021, an incident in Ua-dong, Deokjin-gu, Jeonju-si, Jeollabuk-do, occurred when a 38-year-old woman, identified only by her surname Kang, stabbed a 22-year-old man A 34 times with a knife in a studio apartment. The perpetrator and the victim dated for about a month and a half from August to October 2020. The perpetrator was obsessed with the victim and often visited the house if he couldn't reach her. The victim was mentally stressed by the perpetrator's obsession and stalking, and appealed to acquaintances to break up, but the perpetrator continued to cling and stalk for seven months after the breakup. At 11:45 a.m. on June 6, 2021, the perpetrator broke into the studio where the victim lived and stabbed the victim to death 34 times in the chest and neck after drinking when the victim did not answer the phone. The perpetrator rolled the knife with tissue to prevent it from slipping and attacked the drunk victim. The victim was taken to a hospital after the inciden

 On April 22, 2021, an incident in Sinpo-dong, Jung-gu, Incheon, occurred when a karaoke owner named Heo Min-woo, a local gangster, killed the victim, Kim. Heo Min-woo got angry and beat Kim to death with his fist and foot while arguing with Kim in the process of asking for money for the drink. According to a police investigation, Heo Min-woo asked Kim to pay 100,000 won in cash, but Kim paid only 20,000 won to state that the fight broke out. In the end, Heo Min-woo tried to get an additional 80,000 won, but a murder occurred. Kim visited the karaoke room with one of his local juniors at 7:30 p.m. on April 21, the previous day, and paid 300,000 won in advance to Heo Min-woo to play at the karaoke room. The junior left the karaoke room at 10:30 p.m., and Kim was in a situation where he had to pay an additional 100,000 won for drinking after playing alone more. Kim, who was short of cash, called 112 during a fight with Heo Min-woo and talked to the owner for a while after saying, "I

 On February 8, 2021, an incident occurred in Yongin, Gyeonggi-do, where an 8-year-old girl died as a result of abuse by her aunt and uncle. The victim's biological mother divorced her husband and left her daughter (the victim) in the care of her aunt and her husband, who lived in their apartment in Gorim-dong, Chaein-gu, since around December 2020. However, the couple extremely abused the victim in their care. After brutally assaulting the victim with blunt objects such as fly swatters and brooms because she was possessed (the couple were shamans), unable to cover her feces, or mumbling unintelligible words, the perpetrators tortured the victim, who had fractured ribs and was unable to move, by restraining her with clotheslines, a furoshiki, and plastic bags, filling a bathtub with water, forcibly submerging the victim's head in the water and pulling it out for approximately 50 minutes. Some of the assault tools seized at the scene were beyond the pale. It was an object made l

  In late August 2021, a 56-year-old male named Kang Yoon-seong, who had a history of robbery and sexual crimes, committed a series of murders against two victims in the Songpa-gu district of Seoul, South Korea. Afterward, he turned himself in to the police. On August 26th, around 5:00 PM, Kang Yoon-seong purchased a kitchen knife from a mart in Samjeon-dong, Songpa-gu. Prior to that, at 3:57 PM, he bought a cutting machine from a hardware store in Ogum-dong. Between 9:30 PM and 10:00 PM on August 26th, Kang Yoon-seong suffocated and killed a woman in her 40s whom he had met at a karaoke establishment, using a blanket. He claimed that he killed her because she refused to engage in sexual intercourse. The body of this woman was not discovered until Kang turned himself in. The police had visited Kang's residence five times, including on the day he damaged his electronic ankle monitor, from 6:00 PM on the 27th to 2:00 AM on the 28th, but they did not uncover the first murder. A police

  On December 10, 2021, in a villa located in Jamsil-dong, Songpa-gu, Seoul, a murder took place where Lee Seok-jun (then 25 years old, born in 1996) killed A's (then 21 years old, born in 2000) mother, who was a former lover, and injured A's younger brother. On December 5, Lee Seok-jun sexually assaulted A after taking her mobile phone at his house in Cheonan, and recorded the act with his own phone. On December 6, A reported the suspect for sexual assault, and from December 7, she was under police protection as a victim and received a smartwatch. On December 10, around 2:30 PM, Lee Seok-jun broke into A's house, who was his ex-girlfriend, and attacked A's mother (then 49 years old, born in 1972) and younger brother (then 13 years old, born in 2008) with a weapon. A's father, who was out at the time, became aware of the incident during a phone call with the mother and reported it, but they had already been injured by the weapon. The mother was transported to the ho