At 11:10 p.m. on the 2nd, SBS 'I Want to Know' will trace the secrets of the 'Yangju bottle and bloodstain - the murder case of a top real estate instructor.'

♦ The sudden death of a respected mentor.

On February 15th (Saturday) around 3 a.m., a frantic 112 call was received reporting that the husband appeared to have died. The man, who was found lying in the living room bleeding, had suffered serious facial injuries, and next to him was a Yangju bottle and a kitchen knife. He was transported to the hospital but ultimately died 11 hours later. Many were shocked when his identity was revealed.

"I think he was in the hospital on my exam day, and he called me himself to ask how I did on the exam. Where would you find someone like that?" - Late Choi Seong-jin's student.

The late Choi Seong-jin (who passed away at 55) was known as a top instructor in the field of real estate law. He was famous for his extraordinary passion and engaging lectures, but the reason he was respected and admired was different. He informed his students of his personal number and encouraged them to contact him anytime with questions, being an unreserved mentor who communicated even late into the night through an online café.

♦ Justifiable defense wounding vs. murder.

"I couldn't even suspect for a second that such an event would occur. The family I saw was very close." - A friend of the late Choi Seong-jin.

There was no sign of outside intrusion, and at that time, only the couple was at home. Mrs. Yoon (pseudonym) reportedly confessed to the crime willingly. Choi Seong-jin worked in Seoul during the week and spent weekends at their home in Pyeongtaek with his wife. The tragedy occurred the day he returned home. What could have happened between the two, known as a loving couple for 18 years?

Mrs. Yoon stated that after having dinner with her husband that day, they drank together and argued about her husband's infidelity. During this, the intoxicated husband suddenly swore and threatened with a kitchen knife, prompting Mrs. Yoon to pick up a 1.75L Yangju bottle containing home-brewed liquor from the living room. She swung the Yangju bottle during the scuffle, hitting her husband in the head, causing him to fall.

♦ The truth revealed by bloodstains and a cellphone.

Mrs. Yoon claimed that she only swung the Yangju bottle impulsively to defend herself and had no intention to kill her husband. The production team recreated the scene based on photos in a room where only the two of them were present without witnesses, and conducted an impact experiment. Can the force that caused the victim's death arise from swinging a Yangju bottle weighing nearly 3 kg against an opponent who is 20 cm taller?

In a situation where the only remaining clue at the scene was bloodstains, the bereaved family handed over Choi Seong-jin's cellphone to the production team. Through forensics, messages exchanged between the couple since 2015 were recovered. Amid seemingly affectionate messages, significant conversations were discovered. What secrets lay hidden between the couple?

[Photo] SBS

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