”I got angry at my brother's advice”... Man in his 30s arrested and sent to prosecution for murdering parents and brother = South Korea

A man in his 30s who killed his parents and older brother in Gimpo City, Gyeonggi Province, was arrested by the police. Gimpo Police Station arrested suspect A, also in his 30s, on suspicion of parricide and murder and has referred him to the prosecution.
The suspect, A, is accused of stabbing to death his parents, who are in their 60s and 70s, and his older brother, who is in his 30s, with a lethal weapon at a house in Gimpo City on the morning of the 10th of this month.
Police were dispatched to the scene at around 10:54 a.m. the following day after receiving a report from an acquaintance of Suspect A's mother that there were bloodstains in front of the house, and made an emergency arrest of Suspect A, who was asleep in his room.
The caller had visited the home of suspect A's mother, who was a co-worker at work, because she had not arrived at work. When the police arrived, suspect A's father and brother were dead in the room, and his mother was dead in the kitchen.
The murder weapon and bloodstains believed to be the weapon used by suspect A were found at the scene of the crime. During police investigation, suspect A stated that he had committed the crime accidentally after being angry at his brother's advice.
It was conveyed.