murder investigation

In one of South Korea’s most disturbing true-crime cases, 23-year-old Yu Jong murdered her English tutor simply to satisfy her curiosity about what it feels like to kill. Calm, calculated, and eerily emotionless, she planned the murder after years of obsession with serial-killer documentaries. What began as a fascination with true crime turned into a real-life horror, exposing the dark side of human psychology and the dangers hidden within online tutoring platforms.