On September 27, 2021, at 0:33 a.m., a murder occurred in an apartment in Deokchung-dong, Yeosu, South Jeolla Province. Mr. Jeong Mo (35), a resident living downstairs in the apartment where the incident occurred, went upstairs and wielded a machete to behead Mr. A, a man in his 40s who lived upstairs, and then slit the throats of two people, including Mr. A's wife, Ms. B (30), who was running towards the elevator. He also swung the weapon at Ms. B's parents, who were in their 60s, cutting off her arm and causing severe injuries to her father, including a stab wound to the abdomen (20 cm). The victims' children, a middle school and elementary school-aged sister in her 40s, escaped the attack by locking the door to their room. It was confirmed that Mr. Chung, who lives alone, had repeatedly filed complaints of inter-floor noise, including a request for mediation with the apartment management office on September 17, saying that "the family upstairs is causing inter-floo

 On the night of April 5, 2015, around midnight, a partially dismembered female body was found 3.2 kilometers from the Oido Pier at Sihwa Seawall in Jeongwang-dong, Siheung, toward Daebu Island. Kim Mo, 25, who was fishing with his family near Sihwa Lake, called the police after finding the torso, saying that "an object similar to a human body was floating." Jeongwang-dong, Siheung-si, Gyeonggi-do, is a densely populated residential area in Ansan City, and both the perpetrator and the victim were ethnic Koreans living in Ansan, tarnishing the image of Ansan, which has been tainted by various incidents and accidents.  Although it is not directly related to Ansan City, it is closely related to Ansan City in that Siheung City itself is a residential area in another city, and the case involves Koreans living in Ansan.At the time of discovery, the body was not decomposed, but only the torso was found, with the head, arms, and legs all cut off.  After the discovery of the dismember