← Back to South Korea casesDeceased Man Murdered by Former Nursing Assistant Girlfriend, Bucheon, Gyeonggi Province, South Korea
Case Summary
On October 19, 2018, in Bucheon, Gyeonggi Province, a man died from cardiac arrest caused by an overdose of drugs secretly administered by his girlfriend, a former nursing assistant. The woman had stolen controlled substances from her closed hospital workplace and injected the man under the pretense of fatigue recovery fluids. The couple had a complex relationship marked by the woman's obsessive control and suspicion of the man's infidelity. The woman attempted to die alongside him by injecting herself but survived. She was convicted of murder, drug law violations, and theft, receiving a 30-year prison sentence and a fine. The investigation concluded the woman intended to kill the man but not herself, disproving her claim of a joint suicide attempt.
Basic Information
Country: South Korea
State/Province: Gyeonggi Province, South Korea
City/Region: Bucheon
Incident Type: Murder
Relationship Status: Live-in relationship
Relationship Duration: Approximately 2 years
Incident Date: Oct. 19, 2018
Relationship Journey
Relationship Origins:
- Met at Workplace
- Met at shop or shopping mall
Relationship Stages:
- Dating
- Living Together without Marriage
Analysis
Contributing Factors:
- Cheating / Infidelity
- Financial Issues
- Domestic Conflict
Red Flags:
- Escalation Pattern / Violence
- Secret affair
- Manipulative behavior
- Threats
Motives:
- Revenge
- Jealousy
- Suspicion of infidelity
Relationship Outcomes:
- Legal case ongoing
- Homicide during marriage
- Arrest made
People Link Graph
Relationship Journey Graph
Origin
- Met at Workplace
- Met at shop or shopping mall
How the relationship or connection began.
Status
- Live-in relationship
Approximately 2 years
Stages
- Dating
- Living Together without Marriage
Important relationship phases recorded for this case.
Warning Signals
- Escalation Pattern / Violence
- Secret affair
- Manipulative behavior
- Threats
Reported red flags or early concern points.
Pressure Points
- Cheating / Infidelity
- Financial Issues
- Domestic Conflict
- Revenge
- Jealousy
- Suspicion of infidelity
Contributing factors and possible motives from the available sources.
Incident
2018-10-19
Outcome
- Legal case ongoing
- Homicide during marriage
- Arrest made
Recorded relationship or case outcome.
Sources
English labels are shown first. Original-language titles are preserved for source verification.
Deceased Man Murdered by Former Nursing Assistant Girlfriend, Bucheon, Gyeonggi Province, South Korea
사건의뢰 · Original language: Korean
View original title
"나도 같이 죽으려 했어요" 간호조무사 여친이 놔준 영양제의 정체 l 부천 링거 살인 사건 [양소영의 삐 사랑]
AI Intelligence Assessment
Relationship Pattern
Jealousy
Pattern Analysis
The relationship was marked by the woman's obsessive control and jealousy, including managing the man's finances and monitoring his activities. Suspicion of infidelity and deception about her own live-in relationship contributed to escalating conflict, culminating in the woman's lethal administration of drugs to the man.
Investigative Notes
Police found the woman injected the victim with controlled substances stolen from her former workplace. She survived an attempted joint suicide by losing IV lines. Forensic experts disputed her claim of hypersensitivity causing the injection loss. The woman was convicted of murder and related charges, sentenced to 30 years imprisonment and fined. Investigation concluded the woman intended to kill the man but not herself.
Investigation Confusion
Initial police reports suggested the man died by suicide due to debts, but family testimony and financial evidence contradicted this. The woman's claim of joint suicide was disproven by forensic analysis and investigation.
Case Reconstruction / Puzzle Pieces
The man and woman met in 2016 and began a relationship despite both having other partners. The woman hid her live-in boyfriend from the man. She stole drugs from her closed hospital workplace and administered them to the man under false pretenses. Suspicion of the man's infidelity triggered her to kill him by drug overdose. She attempted to die alongside him but survived. Police and forensic evidence led to her conviction.
Risk Assessment
High risk due to obsessive control, secretive behavior, drug misuse, and escalating jealousy leading to fatal violence.
Key Takeaways
Obsessive and controlling behavior combined with drug misuse can escalate to lethal violence. Financial stability does not preclude relationship violence. False claims of joint suicide may be used to obscure intent. Monitoring suspicious behavior and drug access is critical.
AI Case Q&A
What early signals mattered most?
The woman's obsessive control over the man's appearance and finances, frequent offers of injections, and suspicion of infidelity were early warning signs.
Which clues helped connect the case?
CCTV footage of the woman carrying bags with drugs, forensic drug analysis, and the woman's inconsistent statements helped connect the case.
Which evidence types appeared strongest?
Forensic toxicology showing high drug levels in the victim, CCTV recordings, and the woman's multiple emergency calls were strongest evidence.
Witness / Eyewitness Statements
A longtime friend reported the woman frequently offered injections and controlled the man's appearance. Family members disputed financial motives for the man's death. Paramedics noted the woman was conscious and called for help.
How did follow-up reports change the understanding?
Initial police narrative of suicide due to debt was revised after family testimony and forensic evidence. The woman's claim of joint suicide was rejected based on expert opinion.
What remained unclear?
Exact motivations behind the woman's escalating obsession and decision to kill remain partially unclear. The role of the live-in boyfriend in the dynamics is not fully detailed.