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

John Wayne Gacy, a name that sends shivers down the spine of anyone familiar with his horrific crimes, was one of the most notorious serial killers in American history. This article delves into the life of John Wayne Gacy, exploring his early years, criminal activities, and the profound impact he had on society. Introduction The name John Wayne Gacy became synonymous with evil and brutality. Known as the "Killer Clown," Gacy preyed on vulnerable young men, leaving a trail of terror and sorrow in his wake. But who was the man behind the horrifying mask? Early Life and Background John Wayne Gacy was born on March 17, 1942, in Chicago, Illinois. He grew up in a modest household with his parents and two sisters. As a child, Gacy exhibited a fascination with death and an inclination toward manipulative behavior. However, his early life appeared relatively ordinary, and few could have predicted the darkness that lay within him. The Construction Business and Community Involvement Ga