"The murderer sat the deceased on the sofa after his death, and took care of his hair and clothing, from the scene, I could not find a trace of messiness or untidy places on the deceased, from which it can be seen that the murderer has obsessive-compulsive disorder, so I deduce that the room where the murderer lives is absolutely not allowed to have any untidy places, and all his things are arranged according to his plan, including the position of the books on the bookcase and the placement of each object on the desk. I knew that Team Li was suspicious of Wei Yiche, so I deliberately entered Wei Yiche's room when I was in the villa, and found that there were two books in the same set on his bookcase that were not put together, and I immediately ruled him out, because it is difficult for a person with obsessive-compulsive disorder to bear this situation. Judging from the seriousness of the murderer's handling of the deceased, he should be a person who pays a lot of attention to his appearance, and every time he goes out, he spends a long time choosing clothes and combing his hairstyle. Judging from the murderer's accurate marksmanship, he must have been professionally trained, and it is likely that he was born in the army and the police, but considering that he is not too old and not too young, about 25 to 28 years old, I estimate that he should be a retired officer. Based on the above three points of analysis, I think the profession he is most likely to choose should be bodyguard, but judging from the clues we have found so far, there seems to be no suspect of this kind, and I doubt that I have missed some point in the analysis. Su Xiaonan scratched her hair embarrassedly and said with a blushing face.

"Xiao Nan, you're right, there are indeed suspects of this kind, and this clue was provided to me by him when I met the Ning Bureau yesterday. I heard from the Ning Bureau that Weidong has a bodyguard named Pei Jiangning, who was born in a retired special forces and was the captain of the Ning Bureau when he was a special forces, which is the business card given to me by the Ning Bureau. Li Chengfeng said and put Pei Jiangning's business card on the table.

Everyone passed Pei Jiangning's business card to each other.

"Uncle Xie, is the comparison result of the fingerprints and footprints collected at the scene out?" Li Chengfeng turned his head and said to Xie Bo.

"Come out, most of the fingerprints and footprints collected at the scene yesterday belong to the victims, and the rest belong to Wei Yiqing and the nanny, and there is only one footprint in it that has research value, which is very likely to be left by the murderer." Xie Bo said and pasted the picture in his hand on the whiteboard, and then analyzed, "Judging from the image characteristics of the footprints, the bottom is smooth and unpatterned, there is a thread stitch reaction, there are pattern patterns and nail holes in the heel, the overall footprint is not clear, the edge is not complete, according to my previous experience, the murderer should be wearing shoes with rubber heels and leather soles; Judging from the footwork characteristics of the footprints, the lifting and landing feet are strong, the forefoot pressure is heavy, and there are traces of strong strength, the heel pressure is lighter, the tread marks are obvious, the steps are relatively long, and the step angle is small, which is obviously the footprints left by young people, the age of the murderer is about 25 years old, and the height is between 175 and 180. ”

"It's about the same age as Xiao Nan's estimated murderer." You Jun said.

"It's a pity that no fingerprints were found, and if there were fingerprints, he would soon be caught." Su Xiaonan said regretfully.

"Judging from the situation at the scene, the murderer was cautious and would not leave fingerprints so easily." Yang Peiwu said.

"Uncle Xie, have you checked Wei Yiche's itinerary on July 26?" Li Chengfeng gently tapped the table with his fingers.

"Before the results of the trace test came out, I went to Wencheng alone and asked his secretary, who said that Wei Yiche had been in a meeting that afternoon and had never been anywhere. I also went to the monitoring room to see the monitoring in person, between two and six o'clock in the afternoon, Wei Yiche was indeed in a meeting, and now Wei Yiche's suspicion can be completely ruled out. Xie Bo replied.

"Well, so he has an alibi." Li Chengfeng nodded, then looked at Yang Peiwu, "Peiwu, how is the autopsy?" Did you find anything? ”

"It's a pity, Team Li, I didn't find any useful clues, but the time of death of the deceased can be guessed more accurately, they should have died between 3 and 5 pm." Yang Peiwu said.

"Okay, then I'll tell you about the results of the surveillance I watched one night yesterday." Li Chengfeng got up and walked to the podium, opened the computer in the conference room and inserted it into the USB flash drive, "The murderer is very cautious, and the handling of the scene is almost leakless, but he has not escaped the surveillance." ”

Hearing Li Chengfeng's words, everyone immediately looked happy, but Li Chengfeng's next sentence immediately made them lose their smiles.

"It's a pity that the murderer's face was not photographed."

After the computer was turned on, Li Chengfeng opened one of the several videos in the USB flash drive.

"The surveillance shows that at 3:23 p.m. on July 26, a BMW with a license plate number of Lian A74593 was parked at the door of the Wei family villa, and a man wearing a long cap, a black jacket and trousers got off the BMW.

Let's take a look at the second section of surveillance, at 6:07 p.m., he left from Wei's house, and at this time he was facing the surveillance, but the surveillance captured his face wearing a mask, in addition, he was also carrying a black long bag on his shoulder, which should contain Wei Yiqing. Look here, he paused for a few seconds in the direction of the surveillance before getting into the car, guess what he was talking about? ”

"Reincarnation of cause and effect, retribution is unpleasant?" Xie Bo muttered.

"He was deliberately caught on surveillance! He wants to say this to us at the expense of exposure, what is his purpose? You Jun said solemnly.

"I have a gut feeling that the killer is deliberately guiding us." Yang Peiwu said with a frown.

"I know, the real purpose of the murderer is Wei Yiqing! He kidnapped Wei Yiqing, not for money, but to slowly torture Wei Yiqing to death! He killed the rest of the Wei family because of Wei Yiqing, and the murderer must be planning something bigger! Su Xiaonan suddenly slapped the table and stood up, and said in shock.

"Xiao Nan is right, I mean the same thing, we must find Wei Yiqing as soon as possible!" Li Chengfeng said solemnly.

"But we don't know where the murderer took Wei Yiqing now, how to find it?" Yang Peiwu said.

"Didn't the surveillance capture the murderer's license plate number?" Su Xiaonan asked.

"I've asked people to go to the DMV to check the license plate number, but it's not on the record, it should be a fake license plate." Li Chengfeng said.