An eight-year-old first-grade student named Haneul was allegedly murdered by a female teacher in Daejeon, South Korea. The teacher, a woman in her 40s, had a history of depression and had taken a leave of absence before returning to work. The incident occurred on February 10 during after-school care. The teacher reportedly planned the attack by purchasing a sharp kitchen knife in advance and waited until the child was the last one left to lure her into a storage room and kill her. The teacher was found collapsed and bleeding in the storage room by the child's great-grandmother and police. The case is being investigated as a planned crime with possible terrorism motives linked to the teacher's grievances against the school management rather than a crime solely caused by mental illness.
Country: South Korea
State/Province: None
City/Region: Daejeon
Incident Type: Murder
Relationship Status: None
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Incident Date: Feb. 10, 2025
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How the relationship or connection began.
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2025-02-10
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English labels are shown first. Original-language titles are preserved for source verification.
사건의뢰 · Original language: Korean
Murder of an elementary school student by a teacher in Daejeon
Unknown
The incident involves a teacher with mental health issues who allegedly committed a planned murder of a student, possibly as an act of revenge against the school management. The child was used as a scapegoat to inflict pain on the school leadership. The case does not fit typical relationship-driven patterns such as domestic violence or romantic conflict but involves personal grievances and mental instability.
Police are investigating the case as a planned crime rather than a crime solely caused by mental illness. The teacher had purchased a knife in advance and lured the child to a secluded location. The teacher was found collapsed and bleeding. Discussions are ongoing about the need for regulations allowing immediate suspension of public officials under suspicion. The case is unprecedented and may be treated as terrorism due to the deliberate targeting of a child to harm the school.
Uncertainty exists about whether the crime was caused by mental illness or was a deliberate planned act. The teacher's mental state and motives are under scrutiny, with some experts rejecting the mental illness defense due to the planning involved.
The teacher, after returning from a leave of absence for depression, exhibited unstable behavior. She purchased a sharp knife, waited until after after-school care ended, and lured the last remaining child, Haneul, into a storage room with a book. She then attacked and killed the child. The great-grandmother discovered the scene and alerted police. The teacher locked the door but was found collapsed and bleeding. The child’s phone was tracked, and the incident location was identified near the audiovisual room.
High risk due to premeditation, use of weapon, targeting a vulnerable victim, and possible organizational grievances escalating to violence.
Premeditation and targeting of a vulnerable victim indicate the need for early intervention in cases of mental instability among public officials. The lack of immediate suspension regulations for public employees under investigation may contribute to risk. The case highlights the importance of monitoring and addressing workplace grievances and mental health issues proactively.
The teacher's unstable behavior after returning from leave, anxiety expressed to colleagues, and prior reports to the education office were early signals.
The teacher's purchase of a sharp knife, waiting for the last child, and luring the child with a book were key clues connecting the crime to premeditation.
Phone tracking of the child, discovery of the teacher collapsed and bleeding, and the child's belongings found at the scene were strongest evidence.
Haneul's great-grandmother discovered the teacher collapsed and bleeding in the storage room and remained calm despite potential danger. Other teachers reported the suspect's unstable behavior. Police and school officials confirmed the sequence of events.
No follow-up reports are available beyond the initial investigation and expert commentary.
The exact motive and the degree to which mental illness influenced the crime remain unclear. The legal outcome and classification of the crime as terrorism or otherwise are pending.