In February 2001, a woman in her 30s and her 9-year-old son were found strangled in their bedroom in a multi-unit house in Hongje-dong, Seoul.
But from the start, something about this case felt deeply off. There were no signs of forced entry, and the door had been locked. That means the killer either wasn't a stranger, or was someone the victim had no choice but to let in.
And then there's the strangest detail of all — flour had been scattered around the bodies.
At first glance, it looks like an attempt to cover up fingerprints or footprints. But that explanation never quite sits right. Criminologists say this kind of behavior can go beyond simple evidence destruction — it can reflect something about the killer's psychology, some kind of fixation or compulsion. That's what makes it so unsettling.
After the murders, a fire broke out at the scene. It's believed to have been arson to destroy evidence, and it worked — the damage made it extremely difficult to recover fingerprints or DNA.
Police at the time focused on the victim's ex-husband as the prime suspect. The motive seemed clear enough, and there was a history between them. But his alibi checked out, and without solid physical evidence, he was eventually cleared.
That's the part that frustrates me most. Everything about this case points toward someone who knew her. And yet, no one in her circle was ever identified as the killer.
From 2001 to now, the case remains unsolved. There were clues. There were suspects. It always felt like the answer was just within reach — and then it wasn't.