On the night of April 14th, in an apartment in Suji District, Yongin City, a man in his 50s allegedly murdered his entire family, including his elderly parents, wife, and two children, by first drugging them with sleeping pills mixed in yogurt and then strangling them one by one. After the murders, he fled to Gwangju Metropolitan City where he was arrested early on April 15th. The suspect reportedly faced financial difficulties and civil lawsuits related to a real estate sales scam involving about 200 victims. He claimed he killed his family to prevent them from inheriting his debts before attempting suicide, but this claim is under investigation. The crime was meticulously planned over a long period, including the gradual acquisition of sleeping pills and precise timing to ensure all family members were incapacitated. Investigators are also examining possible insurance motives. The case is considered a thoroughly planned family homicide.
Country: South Korea
State/Province: Gyeonggi Province, South Korea
City/Region: Yongin
Incident Type: Family Homicide
Relationship Status: Married
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Incident Date: April 14, 2025
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How the relationship or connection began.
Important relationship phases recorded for this case.
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2025-04-14
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English labels are shown first. Original-language titles are preserved for source verification.
사건의뢰 · Original language: Korean
Yongin family murder case
Domestic Violence
The case involves a married man who meticulously planned and executed the murder of his entire family, motivated by financial distress and possibly to avoid debt inheritance. The use of sleeping pills to incapacitate family members before strangulation indicates premeditation and control. The suspect's actions reflect a severe domestic violence pattern culminating in family homicide.
Police arrested the suspect on April 15th in Gwangju after the family was found dead in Yongin. Investigations focus on financial fraud, insurance motives, and the suspect's mental state. The suspect left a note suggesting suicide. Authorities are verifying the suspect's claims about debt inheritance and insurance. The case is under thorough investigation.
Uncertainty remains about the suspect's true motive, especially regarding the claim that killing the family would prevent debt inheritance. The suspect's mental health and possible psychopathy are under consideration. No suicide occurred after the murders, despite the note.
The suspect acquired sleeping pills over several days, mixed them into yogurt given to his family at midnight on April 14th, incapacitating them. He then strangled each family member sequentially. After the murders, he fled by car to Gwangju, where he was found sleeping in an officetel and arrested. The family discovery led to police involvement. The suspect's financial troubles and fraud allegations provide context for the crime.
High risk due to premeditation, financial stress, and complete family targeting. The suspect's planning and execution suggest significant danger to family members prior to the incident.
Premeditated family homicide can be driven by financial distress and perceived escape from debt. Careful planning, including drug use to incapacitate victims, indicates high lethality risk. Investigations should consider financial motives, insurance policies, and mental health assessments.
The suspect's financial fraud, civil lawsuits, and debt accumulation were key early signals indicating potential risk.
The gradual acquisition of sleeping pills and the timing of drugging the family at midnight were critical clues to the planned nature of the crime.
Physical evidence includes the bodies found drugged and strangled, the suspect's note suggesting suicide, and police arrest at the suspect's hiding place.
Not reported.
No follow-up reports available beyond initial arrest and investigation details.
The exact motive behind killing the entire family remains unclear, as does the suspect's mental health status and any insurance-related incentives.