”Satan has appeared” to mother... Daughter attacks with ”lethal weapon” = South Korea

In South Korea, a woman in her 30s was arrested for stabbing her mother in her 60s with a deadly weapon. On the 1st, Pyeongtaek Police Station in Gyeonggi Province announced, "A woman in her 30s was arrested on suspicion of attempted parricide.
"We have arrested him and are currently investigating," the police said. Suspect A is accused of biting his mother on the cheek and stabbing her once in the chest with a weapon at around 4:40 a.m. on the same day at their home in Pyeongtaek.
The mother of suspect A is currently in a non-life-threatening condition. After the crime, suspect A was restrained by his father, and it is reported that no other family members were present at the scene.
The family of suspect A told the police, "At the time of the crime, A told his mother, 'Satan has appeared,' and the day before, he had been diagnosed with a mental illness at a psychiatric hospital."
After investigating the specific circumstances of the crime, the police plan to consider whether to detain him or have him committed to a psychiatric hospital.