Three members of a family found dead in Busan after the holidays...Police investigate = South Korea

After the mid-autumn celebration (Chuseok) holiday ended, a family of three was found dead in their home in Busan, and police began an investigation.
According to Busan Jin Police Station and other sources, on the 4th, around 10:47 a.m., an officetel (workplace and residence) in Busanjin-gu was stolen.
Mr. A, a man in his 60s, his wife in his 50s, and their child in their 20s were found dead in a house (one of the residences). The police were dispatched after receiving a report from Mr. A's acquaintance who said that he could not contact Mr. A.
They were discovered after forcing the door open. Police believe that Mr. A and others may have committed suicide, considering that there were no signs of outside intrusion.
The police plan to investigate the exact circumstances and at the same time request the National Institute of Forensic Science to conduct an autopsy on the bodies of Mr. A and others.
■Major trouble consultation counters introduced on the Ministry of Health, Labor and Welfare website to prevent suicide ●Mental health consultation unified dial: 0570-064-556
●Yorisoi hotline: 0120-279-338, from Iwate, Miyagi, and Fukushima prefectures: 0120-279-226
●Life Phone: 0570-783-556