Cheonan murderer sentenced to 25 years for floor‑noise killing

A 47‑year‑old man, Yang Min‑jun, was sentenced by the Daejeon District Court in Cheonan to 25 years in prison for the murder of a 79‑year‑old neighbour after a dispute over floor‑noise from construction work. The court noted that Yang first attacked the victim with a knife, then drove his car into the apartment management office to break the door and continued the assault, describing the act as cruel and pre‑meditated.

The judge rejected Yang’s claim that the crime was a spontaneous reaction to the noise, citing the presence of the weapon and the deliberate use of the vehicle. In addition to imprisonment, Yang was ordered to wear an electronic monitoring device for ten years. Victims’ families expressed disappointment with the sentence, while legal experts highlighted the case as a stark example of how floor‑noise conflicts can escalate into serious violence, prompting calls for stronger housing dispute mechanisms in South Korea.