Han Bin took the letter and looked at it over and over again. He did not see any obvious markings, and the words on the letter were printed, so he could not recognize the handwriting.
Han Bin asked, "When was the last time you checked the express delivery cabinet?"
Song Jingshan thought for a moment and replied, "It should be before the business trip. I left in the afternoon of September 6th and checked the express delivery cabinet in the morning of September 6th."
Han Bin did some calculations. Today was September 11th, so five days had passed. The threatening letters could have been delivered within these five days.
"Who has seen and touched this letter?"
"Only me. I was afraid that my wife would worry, so I didn't tell her. My daughter and eldest son don't live with us either. So I didn't tell them. "
"When you took the letter, did you see any suspicious people around?"
"I was stunned at the time, so I didn't care that much. So I went straight to the police station. " Song Jingshan leaned forward and asked with wide eyes, "Captain Han, do you think the person who wrote the threatening letter is the murderer who killed my son?"
Han Bin put the threatening letter back into the envelope. "It's possible. Have you received any threatening letters before?"
"Yes, I received one before."
"When was it?"
"About three months ago."
"Do you remember the exact time?"
"I think it was June 10th."
Han Bin wrote it down in his notebook. "Did you call the police at the time?"
"Yes. I called the police at the Huaguang Road Police Station. The police also went to my neighborhood to investigate, but they did not find the person who wrote the threatening letter. "
"Is there any difference between the previous threatening letter and this one?"
"There's no difference." Song Jingshan took out a letter from his pocket and placed it on Han Bin's desk. "Look, this is the letter from back then."
It was also a white envelope, and there was a piece of paper inside. It said, "Song Jingshan, you will die a horrible death. I will destroy your family sooner or later!"
There was no difference between the two threatening letters.
Han Bin felt that something was wrong. "Since you already called the police, the first threatening letter should be kept as evidence by the police. Why is it in your hands?"
"Hey, when you mention this, I get angry. I called the police, but it was useless. The police didn't catch anyone. They said it might be a child's prank. As soon as I heard that, I felt something was wrong. It was obvious that they didn't take my case seriously. Since the police said it was a prank, then we can't file a case. I'm afraid that they'll lose the threatening letter and will come back. "
"What investigation methods did the Huaguang Police Station adopt at that time?"
"Only two officers went to check the express delivery cabinet. They asked for the surveillance footage from the property management and said that they wanted to go back to check the footage. They told me to wait at home for further notice." Song Jingshan sighed. "At first, I still had quite a bit of hope. I thought that there might be news the next day. Who knew that one day after another, one day after another, no one would inform me even after a week."
"The second week, I took the initiative to call the police. The officer who answered the phone said that he did not understand the situation and asked me to personally go to the police station to ask the officer in charge of the case.
"I agree. They're working for us, so they should take the initiative. I went to the police station again and asked the person in charge of the case. In the end, they said that they had finished looking at the surveillance footage and did not find any suspicious people. They also asked me if I received any more threatening letters. "
"I said that I didn't receive any. The officer in charge of the case told me that it might be a prank. He asked me to go back and think about whether I had any conflicts with anyone recently. He also said that they would continue to investigate the case."
"As if I would believe you …" The more Song Jingshan spoke, the angrier he became. However, considering that Han Bin and the others were also police officers, he swallowed the rest of his words.
"Later, I waited for another week and went to the police station again."
"Before I could speak, they asked me if I received any more threatening letters. I said no."
"Well, they said that it was a prank. There was insufficient evidence to file a case, so the matter was left unsettled." Speaking of this, Song Jingshan revealed an angry expression and choked. "If they had found the person who wrote the threatening letter earlier, maybe my son wouldn't have died!"
Han Bin did not respond. He could not respond to this.
"Other than checking the surveillance footage, did the police station conduct any other investigations?"
Song Jingshan thought for a moment. "They said that they visited our neighborhood, but there was no further news."
Han Bin asked, "Did they conduct technical tests on that threatening letter?"
"I don't know about that." Then, Song Jingshan revealed a self-deprecating expression. "I don't think so. They didn't take the threatening letter seriously at all. In their words, I didn't suffer any physical harm, nor did I suffer any property damage. It doesn't qualify as a case at all."
In this regard, Han Bin did not say much, because the police officers at the police station were most likely acting according to the rules. If someone had to be held accountable, it would be the problem of the legislature.
Han Bin could not do anything about it, nor could he do anything about it. All he could do was handle the case at hand seriously and responsibly.
"Recently, did you notice anything unusual?"
Song Jingshan thought for a moment and shook his head. "No, no one looked for me, and nothing unusual happened. At first, I thought it was a prank, but who would have thought … sigh … "
"Three months ago, did you offend anyone?"
"I can't remember, but I don't think so. I've always been kind to people, and I value harmony. I've never done anything immoral. "
Han Bin said, "Think about it carefully. It could be that you offended someone in the past, and the other party only made a move three months ago."
Song Jingshan was silent for a while. "I really can't remember."
"Captain Han, do you think the person who wrote the threatening letter is the murderer who killed my son? If he really did it to take revenge on me, wouldn't that mean that I killed Bochen?!"
Han Bin said, "Before the case is investigated, I can't give you an accurate answer. As I said before, think about who you offended. If the murderer is really after you, the clues you provide will be of great help to the police. "
Song Jingshan took a deep breath. "I understand. I'll think about it."
After that, Han Bin rearranged the task. Due to the lack of manpower, he transferred two more team members from Team Two.
The team members were then divided into three groups.
Team One was responsible for checking the phone number, while Team Two went to the Huaguang Police Station to understand the situation and check the files.
Han Bin brought his team to the neighborhood where Song Jingshan lived.
Before he left, Han Bin sent the two letters to the forensics team and asked them to help him examine them.
…
Rongding Garden District.
The district was not far from Yuhua Branch. It was a high-end district with a high rate of greenery, and all the houses were large.
Han Bin walked around the district. The district was well-equipped with surveillance equipment. There were surveillance cameras at the entrance of the district, the stairway entrance, the elevator, and the underground parking lot.
Song Jingshan lived in building number six.
There were no surveillance cameras next to the express delivery cabinets in the hall on the first floor, so there was no way to see who sent the threatening letter.
Han Bin walked around the neighborhood and had a rough idea of what to do.
After that, Han Bin brought his team to the property management company.
The person in charge of the property management company was called Feng Lianhai. He was a middle-aged man in his forties. After learning the identity of Han Bin and the others, he was very polite.
"Captain Han, let us know if you have any orders. Our property management company will definitely cooperate."
Han Bin said, "I want to check the surveillance cameras from September 6th until today."
"No problem, I can take you to the surveillance room now."
Han Bin asked Li Qin and Bao Xing to go to the surveillance room to check the surveillance cameras while he stayed in the property management lobby. "How many exits does Mr. Song's building number six have?"
Feng Lianhai thought for a moment. "There are two. One comes out from the unit door, and the other goes straight down to the garage."
Han Bin asked, "If he goes down the stairs to the garage, will he be caught by the surveillance cameras?"
"Yes. The door to the underground garage from the stairway faces a surveillance camera. As long as an outsider enters the building, it will definitely be caught. In terms of the security of the district, we are very considerate. "
"How many families live in building number six?"
Ma Lianhai said, "Building number six has seven floors, and each floor has two stairs and two units. There are a total of fourteen families living there."
Han Bin nodded. This was the advantage of a high-end district. Ordinary districts had twenty to thirty floors and four units on two stairs. This unit had close to a hundred residents.
There were advantages to having fewer residents, as it made it easier for the police to investigate.
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