A Japanese father stabbed his 12-year-old son to death for not studying for a school entrance exam.
Kengo Satake, 48, had been arguing with his son, Ryota, for not studying for an entrance exam to a prestigious private junior high school, Time reports.
Ryota died from loss of blood after being taken to the hospital, reports Agence France-Presse. Once doctors saw what happened, they notified police.
Kengo told police he had stabbed his son with a kitchen knife "by mistake." He claimed they were arguing about the boy not studying, an argument they had many times in the past.
The father was arrested at the scene. The boy's mother was at work when the incident occurred.