In Busan, South Korea, on August 24, 2019, a 63-year-old male suspect, the brother-in-law of the victims, committed a domestic violence homicide at a restaurant. The suspect, who had a 27-year marriage with his wife (the younger sister of one victim), exhibited delusional jealousy and coercive control after a separation and restraining order in 2019. He fatally stabbed his sister-in-law and brother-in-law with a paring knife. The suspect was arrested and convicted, receiving life imprisonment. The case involved a history of domestic violence, stalking, and escalating threats driven by delusional jealousy and refusal to accept separation.
Country: South Korea
State/Province: None
City/Region: Busan
Incident Type: Domestic Violence Homicide
Relationship Status: Married
Relationship Duration: Approximately 27 years (marriage)
Incident Date: Aug. 24, 2019
Relationship Origins:
Relationship Stages:
Contributing Factors:
Red Flags:
Motives:
Relationship Outcomes:
How the relationship or connection began.
Approximately 27 years (marriage)
Important relationship phases recorded for this case.
Reported red flags or early concern points.
Contributing factors and possible motives from the available sources.
2019-08-24
Recorded relationship or case outcome.
Jealousy
The suspect exhibited escalating obsessive jealousy and coercive control following a long-term marriage and subsequent separation. Delusional beliefs about the spouse's family fueled the violence, culminating in stalking and fatal attacks on family members. The pattern reflects a domestic violence homicide driven by mental instability and refusal to accept separation.
CCTV and DNA evidence confirmed suspect's presence and involvement. Arrest occurred four days post-incident at a motel where further attacks were planned. Conviction included multiple charges with life imprisonment sentence and electronic monitoring. The suspect's delusional claims were disproven by investigators.
No significant confusion reported; suspect's delusional beliefs were rejected by investigators but did not affect identification or conviction.
The suspect's delusional jealousy began in April 2019, escalating after separation in May 2019 when wife left with siblings' help and filed restraining order. The suspect stalked the family, liquidated assets, and prepared for attacks. On August 24, 2019, he ambushed and fatally stabbed the brother-in-law upon arrival at the restaurant, then killed the sister-in-law upon her return. Arrest and conviction followed based on forensic and CCTV evidence.
High risk due to history of domestic violence, verbal and physical abuse, alcoholism, stalking behavior, threats of homicide, and weapon acquisition. The restraining order and separation increased risk of escalation.
Long-term domestic violence and delusional jealousy can escalate to fatal outcomes, especially following separation and restraining orders. Early intervention on stalking, threats, and coercive control is critical. Mental health deterioration and obsessive behaviors are key warning signs.
Years of physical and verbal abuse, delusional jealousy starting April 2019, restraining order and separation in May 2019, and threatening messages to family.
Threatening messages, stalking behavior, CCTV footage, and DNA evidence on weapon.
CCTV recordings, DNA on paring knife, threatening messages sent by suspect.
Family members and wife reported long-term domestic violence and suspect's irrational, delusional behavior.
No follow-up reports beyond conviction and sentencing were available.
Exact names of victims and suspect remain anonymized; no further details on mental health treatment or prior interventions reported.