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Jealousy
Emotional state
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Fanshang
Suspect · Wife of the victim
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Fanshang expressed in her diary strong feelings of jealousy and hatred toward the stepdaughter, viewing her as a 'ticking time bomb' and resenting her resemblance to the other woman. This jealousy motivated her harmful actions.
Context or trigger: Discovery of husband's infidelity and child with another woman
Reported expression: Resentment and inability to tolerate stepdaughter's presence
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Explicitly reported
Confidence: High
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Marital dissatisfaction
Relationship stressor
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Woojong
Father · Husband of the offender
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Woojong felt life was boring and cold without his wife, leading him to frequent nightclubs and engage in extramarital affairs, indicating dissatisfaction with marital life.
Context or trigger: Wife's frequent absence due to work and childcare
Reported expression: Seeking excitement outside marriage, infidelity
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Narrative-supported psychological state
Confidence: High
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Emotional abuse
Control dynamics
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Fanshang
Suspect · Wife of the victim
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Fanshang never allowed her son to enter the stepdaughter's room and secretly exposed the child to toxic materials, demonstrating emotional and physical abuse.
Context or trigger: Resentment toward stepdaughter
Reported expression: Excluding son from child's room, covert poisoning
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Explicitly reported
Confidence: High
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Maladaptive coping
Coping response
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Fanshang
Suspect · Wife of the victim
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Instead of seeking constructive solutions, Fanshang chose a harmful path by poisoning the child's environment, worsening family distress and leading to fatal outcomes.
Context or trigger: Dealing with husband's infidelity and family disruption
Reported expression: Planning and executing harmful revenge
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Analytical inference
Confidence: Moderate
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Family opposition or interference
Family dynamics
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Fanshang
Suspect · Wife of the victim
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Fanshang's diary entries reveal her inability to accept the stepdaughter, reflecting family conflict and opposition within the household.
Context or trigger: Presence of husband's child with another woman
Reported expression: Hostility and resentment toward stepdaughter
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Explicitly reported
Confidence: High
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Depressive symptomatology
Emotional state
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Woojong
Father · Husband of the offender
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Woojong experienced deep grief and regret over his past actions and daughter's death, leading to physical weakness and hospitalization.
Context or trigger: Regret and grief after daughter's death and family breakdown
Reported expression: Sadness, remorse, and hospitalization
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Narrative-supported psychological state
Confidence: High
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Help-seeking or disclosure
Coping response
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Woojong
Father · Husband of the offender
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Upon learning the truth, Woojong reported the case to police, facilitating investigation and legal proceedings.
Context or trigger: Discovery of wife's harmful actions
Reported expression: Reporting to police and initiating investigation
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Explicitly reported
Confidence: High
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