On December 31, 2021, a bizarre murder case took place at the Children's Sports Center in Bukhankajwa-dong, Seodaemun-gu, Seoul. On December 30, 2021, late in the evening, the victim, Goh Jaehyung (26 years old at the time and an employee at the sports center),  had an end-of-year dinner with his boss, Han Mo (40 years old at the time and the owner of the sports center), and two other employees.  According to KakaoTalk messages released by the victim's family, until 11 p.m., the victim was conscious enough to communicate with his family through text messages. The substitute driver who received a call from the victim stated that the victim, who was intoxicated, was unable to provide his location and canceled the ride.  During the call, a man presumed to be the perpetrator allegedly said, "Where the hell do you live, you ××? If you want to go home, you better give the driver the correct location." When the driver didn't arrive, Mr. Goh said, "I'll drive my

 On September 3, 2021, at around 2:00 pm, a murder occurred in Gangseo-gu, Seoul. The victim was the wife of the perpetrator, who was preparing for a divorce due to domestic violence, when he killed her with a one-meter Japanese sword, also known as a katana. According to the victim's friend, who posted the incident on Natefan at 11 a.m. on September 6, the background of the case dates back to 2016, when the victim had an affair with the perpetrator's close friend, leading to serious marital problems. The victim also secretly borrowed money from the perpetrator to make investments, resulting in financial losses and a deteriorating relationship.  In May 2021, the victim could no longer tolerate the situation and fled with her children, leaving all of their possessions behind. After she left, the perpetrator cut off her access to her funds by suspending her credit cards. The victim was later able to find a new job, but continued to struggle financially as she used her earnings to