National Forensic Doctor

"Are there any results?"

Jiang Yuan finished the investigation and returned to the Changyang City Criminal Police Detachment. He first asked Meng Chengbiao this question.

Meng Chengbiao shook his head: "It's not very smooth. Li Haojie is still a minor, and there are many restrictions on interrogation. It will probably take another day, at least."

"Don't worry." Jiang Yuan's mood was quite stable.

Jiang Yuan's backlog case team is equivalent to handling cases in a different place. In addition, due to Jiang Yuan's fame, countless eyes are staring at him, wishing that every step would be put under a magnifying glass. Various procedural requirements inevitably reduce the efficiency of the interrogation. Jiang Yuan had already expected it.

Meng Chengbiao breathed a sigh of relief and said: "I will go back and think of a way to break through. The prosecutor of the procuratorate here followed the whole process, and I have to write something for him."

Jiang Yuan comforted Meng Chengbiao for a few more words, and then went to the Changyang City Criminal Science Center to read the report made by the laboratory here.

Many people read the report to see the conclusions in the report, but the information gained in this way is obviously the least. The conclusions in the report can be revised, and in many cases, they need to be studied in conjunction with the specific information in the report. Furthermore, the specific information in the report can provide more guidance.

Wan Baoming, director of the Criminal Science and Technology Center, accompanied Jiang Yuan for a walk and took a cart of information, all of which were various samples brought back in the past two days, including a lot of trace evidence.

Several people sat in the office and studied together for a long time. Finally, Jiang Yuan put down the report in his hand and said, "Basically, it's useless."

"That's right." Wan Baoming sighed.

"Don't worry." Jiang Yuan is now very experienced in handling cases. Without any skills, he is also a qualified task force leader.

Although this case is still serious, Jiang Yuan is still very confident.

Jiang Yuan said: "The Criminal Division will continue to collect evidence to see if they can identify Li Haojie. Li Haojie is a minor, and his family may be hoping for the best. If there is some strong evidence to prove the case, the Li family will probably give up."

Wan Baoming nodded heavily: "Li Haojie is already 16 years old, and can be tried and sentenced as an adult. Even if he cannot be sentenced to death, he can be jailed for life."

Jiang Yuan nodded.

While talking, Jiang Yuan's phone rang.

Jiang Yuan answered the phone, and Meng Chengbiao's voice was dull.

Meng Chengbiao: "Captain Jiang, there was a little accident."

Jiang Yuan frowned, and the soul of the forensic doctor instantly took over: "Did you kill him?"

"No, no." Meng Chengbiao inexplicably felt a little relieved. If in Jiang Yuan's mind, killing someone during the trial was a little accident, then what he was going to say now was really nothing big.

Jiang Yuan: "What accident?"

Meng Chengbiao coughed twice, and his tone became more serious. He said: "Li Haojie confessed that he did have an early love affair with the victim Sun Xiuwen, and he climbed up the window of Li's house many times, and occasionally asked Sun Xiuwen to come out to play. But... on the day of the incident, Li Haojie had an alibi and claimed that he did not ask Sun Xiuwen out."

"What evidence?"

"He took a few videos at home, and also had a video call with relatives from other places. Preliminary verification shows that it should be true."

"In other words, Li Haojie has been ruled out of suspicion again?" Jiang Yuan raised his voice a little to the microphone, a little unhappy.

"Yes." Meng Chengbiao answered helplessly.

"What about Li Haojie's brother? He should be an adult, has he been interrogated?" Jiang Yuan was still a little unhappy.

"He is an adult, and the interrogation went smoothly, but he was also at home that day and participated in the video call with that relative. In addition, Li Haojie's brother has a mobile phone, and we have searched it, but there is no evidence."

At this point, the suspicion of Li Haojie's family has been basically ruled out.

Jiang Yuan frowned slightly.

Meng Chengbiao waited for a few seconds, and seeing no response on the phone, he couldn't help but say: "Captain Jiang, in this case, should we consider impulsive murder?"

"Unlikely." Jiang Yuan said firmly: "Previously, the Criminal Police Detachment considered random killings based on the time of death being between 6 and 8 in the morning. This time period is the time when the deceased goes to school, and it is possible that passers-by will see him and then harm him."

Jiang Yuan said to the phone: "Now, the time of death is determined to be 3 o'clock in the morning. At this time, the victim Sun Xiuwen cannot enter or exit from the main door. Her mother and stepfather live on the first floor, and they can hear everything at the door. Moreover, Sun Xiuwen has There is a mature strategy for climbing over the wall, so there is no need to take risks through the main entrance. "

Meng Chengbiao understood a little at this time, and couldn't help but say: "The jeans that Sun Xiuwen used to climb over the wall were rolled up and placed in the closet. If Sun Xiuwen climbed down the stairs alone, who helped her collect the jeans?"

Jiang Yuan: "That's right."

Meng Chengbiao was completely confused and couldn't help but say: "Isn't this a paradox? Sun Xiuwen didn't take the initiative to climb the stairs, but died in her own home at 3 o'clock in the morning. Then if the murderer took the initiative to get into her house, her house was not the first scene, and after the murderer escaped, who put away the jeans?"

Jiang Yuan thought about it and didn't answer immediately.

Meng Chengbiao's interest came up, and the detective instinct returned for a limited time, saying: "Could it be that Sun Xiuwen's mother was worried about reputation and other issues, so she secretly put away the jeans..."

Jiang Yuan recalled the bridge surface at the scene at this time, interrupted Meng Chengbiao's words, and said: "The footprints on the wall are still relatively fresh."

"What do you mean?"

"Although it is impossible to accurately determine the exact time when the footprints were left, it can be seen that Sun Xiuwen climbed the wall quite frequently."

Meng Chengbiao put away his Sherlock Holmes thinking and immediately turned to Watson, asking: "What does this mean?"

"Do young people nowadays climb over the wall just to have a tryst with their boyfriends? That's too monotonous." Jiang Yuan said: "You can interrogate Li Haojie again and ask him who Sun Xiuwen usually meets when she climbs over the wall, who knows that she will climb over the wall, or who else she will meet besides Li Haojie when she climbs over the wall?"

"Yes." Meng Chengbiao understood and took action immediately.

Half an hour later.

Meng Chengbiao called again and said: "Captain Jiang, you are so predictable."

"Anyone else?" Jiang Yuan was also waiting for Meng Chengbiao's call.

Meng Chengbiao said, "Yeah," and said, "Sun Xiuwen has two best friends. Occasionally, Sun Xiuwen will climb out to play with her best friends."

It's not easy for a best friend to strangle another best friend, and it's even more difficult to use a pillow.

Jiang Yuan thought and asked, "What to play?"

"Watching movies, drinking, dancing together, they have a secret base. It's the relative's house of one of the best friends' boyfriend. They don't come back usually, but the water, electricity and electrical appliances are all available."

Jiang Yuan was relieved immediately: "That is to say, there is another man who knows that Sun Xiuwen often climbs over the wall."

"Two." Meng Chengbiao said, "Both best friends have boyfriends."

"Bring them all back." Jiang Yuan paused and said, "I'll go to the scene again."