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So far, more than 350,000 people have participated in the Blue House petition for the exact cause of the death of Son Jung-min, a college student who was found dead in the Han River. On the day Mr. Son disappeared, the police are working to find the cell phone of the last friend he was with.
Reporter Jeong Ban-seok covered it.
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On the day of the disappearance of Son Jung-min, friend A, who was with Son, picked up Son's mobile phone and returned home.
It is believed that the two phones have changed, but a friend A's cell phone has not yet been found at the scene of the disappearance.
The police are concentrating on the search work, seeing that Mr. A's mobile phone contains a clue to reveal Son's autograph.
Yesterday (4th) and yesterday I found two mobile phones, but none of them were Mr. A.
The police said that the cell phone that disappeared was an iPhone 8 model and was in space gray, and that it would continue searching by the river and underwater.
The police are also reconciling the situation at the time of the disappearance by checking the movement between Mr. Son and Mr. A.
We called six witnesses as references to understand the situation at the time, but we could not find any special connection between Mr. Son's death and his friend A.
On the day of his disappearance, he investigated how his friend A discarded the shoes he was wearing, but it is known that he did not find any special suspicions.
In order to accurately understand the situation at dawn on the day of the disappearance, the police secured and analyzed images of 54 CCTVs and black box images of 133 parked vehicles.
Police say Mr. Son is investigating with all possibilities open to find out why he was found underwater.
(Video coverage: Kim Se-kyung, video editing: Jeon Min-gyu)