Chapter III

In recent days, due to the influence of the northward shift of the subtropical high, the temperature in Linhai City has reached a new high in decades for the same period in the past few days, and the maximum temperature yesterday crossed the 38-degree barrier and approached 39 degrees. This has a significant impact on the daily lives of the residents of Linhai City, which is located at 40 degrees north latitude in normal years, and the temperature generally hovers between 30 and 33 degrees Celsius even in the hottest time of summer. For the residents of Linhai City, the heat comes too quickly and suddenly, and they can only respond to the high temperature in recent days by staying dry and trying not to go out.

At ten o'clock in the morning, Li Song and Shen Qiang appeared in front of the Binhai New Area Public Security Bureau building with their heads drooped, at this moment they did not give the impression of a righteous and awe-inspiring criminal policeman, if it were not for the police uniforms on their bodies, they would feel more like roadside vendors. Li Song had already taken off his police uniform shirt, the shirt button had been unbuttoned to the second one, and the police hat was used as a fan in his hand. As for Shen Qiang, it was even more exaggerated, he felt that Li Song was not cool enough, so he directly rolled the bitter mouth of the police uniform trousers to his knees, and was stunned to wear the trousers into five-point pants.

Li Song and Shen Qiang had just returned from Mingchuan University, and they retrieved the surveillance records near the graduate student apartment of Mingchuan University from the security office of Mingchuan University, combined with the surveillance video installed by the Mingchuan University section of the coastal highway in Binhai New Area and various business places near Huangshi Beach obtained from the 110 monitoring center, which can basically restore the flow of people on Huangshi Beach from July 16, 2017 to the morning of July 19, 2017.

"Brother Dong, according to your instructions, Shen Qiang and I visited the merchants and Mingchuan University at the scene, and through the struggle, we copied their respective surveillance videos, combined with the records of the 110 monitoring center, which can basically restore the flow of people around the beach three days before the 7.19 murder." Li Song sat at his desk, reporting to Dong Chenghai while selecting all the video recordings in his folder and laying them out on the table in chronological order and location.

"Did you find anything?" Dong Chenghai stood behind Li Song, put his left hand on Li Song's right shoulder, and said with his eyes looking at the monitor.

"I didn't find anything out of the ordinary. Due to the high flow of people, Yellowstone Beach is crowded with tourists every day except in winter. However, there are two things that stand out in particular. First, from the surveillance records of a seafood seller near Yellowstone Beach, it was found that at 2:15 p.m. on July 18, 2017, a total of 11 people dressed as eight men and three women from the neighborhood walked from the coastal road to Yellowstone Beach, and six of them were carrying travel bags of different sizes. Due to the effective camera distance, the store's camera could only capture them walking towards Yellowstone Beach, and it was not known where they were going. ”

"It's kind of interesting. Although most of the people who go to the beach are in groups, there are usually only three or four people, at most seven or eight people in a family, and it is not common for a dozen people to go to the beach in a group, and judging from the information conveyed in the video, they don't talk to each other, and they don't look like a family or friends. Dong Chenghai said to himself thoughtfully: "Can you find the place where they appeared before?" ”

"Yes." Li Song then opened another video and maximized it, and then continued: "From a surveillance video inside the southeast wall of Mingchuan University, we can see that this wave of people appeared in the alley of the residential area on the southeast side of Mingchuan University before they appeared on Yellowstone Beach, but the video screen shows 10 people, not 11. From the analysis of the geographical location of the southeast side of Myeongcheon University and Huangshi Beach, they should have crossed the coastal road from the southeast side of Myeongcheon University and then walked southwest to Yellowstone Beach, and entered the monitoring range of the marine goods store. ”

"That is, there is an extra person out of thin air between the monitoring range on the southeast side of Mingchuan University and the monitoring range of the marine goods merchant?"

"Yes, and by comparing the pictures, the extra person is between 23-31 years old, male."

"This is in line with our judgment of the basic information of the deceased." Dong Chenghai removed his left hand from Li Song's right shoulder, touched the back of his head, and said, "Can you confirm the identity information of this extra person?" ”

Li Song turned his head, shrugged helplessly at Dong Chenghai and said, "No." We enlarged and printed out a photo of this person, and asked the residents and businesses in the neighborhood, and no one said that they had seen or knew him, and most of the residents thought that he was not a local, at least not a nearby resident, and his face was very raw. ”

"Next, you can expand the scope of your visit to see if the residents in the area far away from Mingchuan University have seen this person, and you can also coordinate with other police stations to see if there is any information about this person in the police station, and you can also communicate with Wang Lei and them to determine whether he is the latest missing person."

After Dong Chenghai finished speaking, he turned around and walked to the office, and halfway through, he seemed to suddenly remember something, and turned back again. "By the way, you just said that there are two points in the special place, and what is the other point?"

"Don't you say that I almost forgot, this is particularly interesting, that is Sima Yuanying." Li Song seemed to suddenly remember something, patted his head, and casually opened a few surveillance screens.

"Sima Yuanying?"

"Yes, it's Sima Yuanying, this guy is very interesting, the surveillance screen at the south gate of Mingchuan University shows that Sima Yuanying will appear at 18:50 every night, and then at 19:15 in the surveillance screen of the marine supplies merchant, not only a few days before the 7.19 murder, but every day in the surveillance records that have been saved, and the difference in time is no more than 5 minutes."

"I'm afraid this person has obsessive-compulsive disorder, right? It's so punctual and this pattern is too scary. After Ouyang Yunxi answered the phone, he came to Dong Chenghai and shouted coldly.

"That's why Sima Yuanying is very interesting, as a college student, his life rules are more serious than our police." Li Song followed Ouyang Yunxi's words and quipped.

"No, there is an intersection between the two. You see. Dong Chenghai said as he snatched the mouse of Li Song's right hand, opened another video screen, and continued: "You see, on July 18, Sima Yuanying and the 11 people appeared in the same range of Huangshi Beach at the same time. From the location of the sea supplies merchants, it can be analyzed that whether it is Sima Yuanying or the 11 people, the direction they are going can only be the Huangshi Cliff and the junction between the Yellow Stone Cliff and the beach is not more than 10 meters wide, because if it is not for these two places, they will generally not go south in the sea supply store and enter another camera monitoring range of the sea supply store, for the 11 people, they should have been walking west until they disappeared into the monitoring range of the north of the sea supply store. For Sima Yuanying, he should have been going east until he disappeared into the northern surveillance range of the sea supply store. ”

Dong Chenghai looked at Ouyang Yunxi and Li Song beside him, and then said: "The time when Sima Yuanying appeared on the surveillance screen of the marine supply store on July 18 was 17:16 on the evening of July 18, that is, the time when he arrived at Huangshi Cliff or Huangshi Beach near Huangshi Cliff was around 19:20. Therefore, since we cannot see their appearance from the surveillance footage near Yellowstone Beach except for the surveillance footage of the seafood store, it is reasonable to infer that Sima Yuanying and the 11 people have been staying on the beach near Yellowstone Cliff since 19:20 on July 18. ”

"Brother Dong, do you mean that the deceased is likely to be Sima Yuanying and one of the 11 people?" Ouyang Yunxi asked suspiciously.

"This is the most plausible inference at the moment." Dong Chenghai nodded to himself.

"Then the deceased is likely to be Sima Yuanying."

"Why?" Li Song asked almost subconsciously.

Ouyang Yunxi looked at Li Song, then at Dong Chenghai and said: "First of all, we didn't get the video of Sima Yuanying and the 11 people leaving Huangshi Beach from the surveillance footage, which means that the deceased is likely to be one of them. Secondly, judging from the dress of the 11 people, they do not look like tourists who go to Yellowstone Beach to play, and there are 6 of them carrying duffel bags, it can be judged that these 11 people are likely to plan to go to sea, but Yellowstone Beach is not a port, and there is no reason for fishing boats to dock, so it is very likely that these 11 people are planning to smuggle out of the country by boat. Finally, Sima Yuanying is a patient with severe obsessive-compulsive disorder, and he lacks a reasonable reason not to appear in the monitoring range of Mingchuan University and the marine supply store after July 18, and at the same time, Sima Yuanying is a 2015 graduate student in the Department of Philosophy of Mingchuan University, and he does not have the realistic conditions to go to sea or smuggle in, and he has not appeared in the surveillance screen since he left the monitoring range of the marine supply store at 19:15 on July 18. ”

"Okay, Sister Yunxi is good at reasoning now." Li Song said half Ouyang Yunxi happily and half emotionally.

"That's right, don't look at who my master is, do you?" Ouyang Yunxi said proudly, and patted Dong Chenghai's shoulder at the same time, looking at him as if he was asking for Dong Chenghai's affirmation.

"Have you confirmed Sima Yuanying's identity?" Dong Chenghai ignored Ouyang Yunxi's inquiry and eyes, looked at Ouyang Yunxi and asked.

Ouyang Yunxi saw that Dong Chenghai didn't intend to praise her, she was a little angry, glared at Dong Chenghai, and said angrily: "Hmm." Yesterday I contacted the student office of Mingchuan University, and just now the student office of Mingchuan University called me and confirmed that Sima Yuanying is a 2015 graduate student in the Department of Philosophy of Mingchuan University, majoring in the history of Western philosophy. People who study philosophy are inherently different, and it is normal for a top student in the philosophy department like Sima Yuanying to have a high degree of obsessive-compulsive disorder. ”

"Okay, then come here first, Li Song, you continue to pay attention to the monitoring with Shen Qiang, especially the new one between the 11 people, you can share information with Wang Lei and them, and you have to inform me as soon as possible if there is any situation." Dong Chenghai patted Li Song on the shoulder, and then said, "Yunxi, you call Shang Xiaolin, let's go to Mingchuan University together." ”

"Yes." Ouyang Yunxi and Li Song replied in unison.