← Back to South Korea casesMs. Lee, Son, and others Murdered by Kang-ga, Jinju, Gyeongnam, South Korea
Case Summary
On March 12, 2020, in Jinju, Gyeongnam, Kang-ga, a 56-year-old man, brutally murdered his wife Ms. Lee (51) and their 14-year-old son, and severely injured their 16-year-old daughter during a planned attack. The wife had fled with the children two years earlier due to domestic violence and delusional jealousy from Kang-ga, who refused divorce and harassed them persistently. Kang-ga prepared the murder weapon in advance, transferred his assets to his child from a previous marriage, and sent a voice message threatening to kill his family before fleeing. The daughter survived but with lifelong trauma and speech impairment. Kang-ga was arrested three days later after hiding in a rural area. He was sentenced to life imprisonment without parole, with the court rejecting his claim of impulsive crime and recognizing the murder as planned and brutal.
Basic Information
Country: South Korea
State/Province: None
City/Region: Jinju
Incident Type: Family Homicide
Relationship Status: Separated
Relationship Duration: Approximately 3 years (separation)
Incident Date: March 12, 2020
Relationship Journey
Relationship Origins:
- Arranged marriage
Relationship Stages:
- Married Living Together
- Separated
- Arragned Marriage
Analysis
Contributing Factors:
- Domestic Violence Allegation
- Domestic Conflict
- Divorce / Separation
Red Flags:
- Escalation Pattern / Violence
- Threats
- Firearm Access / Concerning Weapon Behavior
- Divorce Pending / Recent Separation
Motives:
- Revenge
- Escape marriage
- Jealousy
Relationship Outcomes:
- Legal case ongoing
- Homicide during marriage
- Arrest made
- Investigation still ongoing
People Link Graph
Relationship Journey Graph
Origin
- Arranged marriage
How the relationship or connection began.
Status
- Separated
Approximately 3 years (separation)
Stages
- Married Living Together
- Separated
- Arragned Marriage
Important relationship phases recorded for this case.
Warning Signals
- Escalation Pattern / Violence
- Threats
- Firearm Access / Concerning Weapon Behavior
- Divorce Pending / Recent Separation
Reported red flags or early concern points.
Pressure Points
- Domestic Violence Allegation
- Domestic Conflict
- Divorce / Separation
- Revenge
- Escape marriage
- Jealousy
Contributing factors and possible motives from the available sources.
Incident
2020-03-12
Outcome
- Legal case ongoing
- Homicide during marriage
- Arrest made
- Investigation still ongoing
Recorded relationship or case outcome.
Sources
English labels are shown first. Original-language titles are preserved for source verification.
Ms. Lee, Son, and others Murdered by Kang-ga, Jinju, Gyeongnam, South Korea
김복준의 사건속으로 · Original language: Korean
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[중요사건] - 진주 일가족 살인사건
AI Intelligence Assessment
Relationship Pattern
Domestic Violence
Pattern Analysis
The offender exhibited delusional jealousy and domestic violence, refusing divorce and persistently harassing the wife who fled with their children. The crime was premeditated, involving asset transfer and weapon preparation, culminating in a brutal family homicide.
Investigative Notes
Police investigation revealed the crime was planned, supported by evidence of asset transfer, weapon preparation, and a threatening voice message to the mother-in-law. The offender was arrested after a three-day manhunt involving 300 officers, helicopters, drones, and search dogs. The surviving daughter testified in court despite severe injuries. The court sentenced the offender to life imprisonment without parole, rejecting claims of impulsivity.
Investigation Confusion
Initial police assumption of a crime of passion was overturned by detailed investigation showing premeditation. The offender denied stabbing the daughter twice, but forensic evidence and her testimony confirmed multiple attacks.
Case Reconstruction / Puzzle Pieces
The wife fled with children in 2017 due to domestic violence. The offender refused divorce and harassed them repeatedly. On March 12, 2020, he arrived at their residence with a prepared weapon, attacked the sleeping family members in separate rooms, killing the wife and son and severely injuring the daughter. He fled, discarded his phone, hid in a mountain, then was captured after three days. The daughter sent distress messages during the attack. The offender had transferred assets to a child from a previous marriage before the crime, indicating planning.
Risk Assessment
High risk due to history of domestic violence, refusal to accept separation, delusional jealousy, and prior threats. The offender's planning and asset transfer indicate intent to end the family unit violently.
Key Takeaways
Persistent domestic violence and refusal to accept separation can escalate to planned lethal violence. Asset transfer and prior threats are critical warning signs. Survivors' testimonies and forensic evidence are vital for confirming crime details. Law enforcement coordination and extensive search efforts are essential in apprehending fleeing offenders.
AI Case Q&A
What early signals mattered most?
Persistent harassment after separation, delusional jealousy, prior domestic violence, asset transfer to another child, and threatening voice message to mother-in-law.
Which clues helped connect the case?
Surviving daughter's testimony, forensic evidence of multiple stab wounds, weapon placement at the scene, and offender's asset transfer and phone discarding.
Which evidence types appeared strongest?
Forensic wound analysis, survivor's detailed testimony, voice message to mother-in-law, and physical evidence of weapon placement.
Witness / Eyewitness Statements
Surviving daughter testified about the attack sequence; neighbors reported repeated disturbances from the offender knocking early mornings; police and first responders documented the crime scene and victim conditions.
How did follow-up reports change the understanding?
Initial police assumption of impulsive crime was revised to planned murder after investigation and court proceedings; daughter's ability to testify improved over time, clarifying attack details.
What remained unclear?
No unresolved major facts reported; offender's full identity withheld from public; offender's remorse remains absent.