"We can't rule out this possibility. It's really a secret room murder case." I said with a solemn expression.

Shen Ling looked at the biyang grass in my hand and made a suggestion: "Why don't you spread your biyang grass all over the floor of the house and see if you can find the traces of the murderer after he entered the door?"

I shook my head and said with a wry smile: "The method is good, but I don't have so much Yangcao. The goods I took in Nantian last time are almost used up."

"Okay." Shen Ling was also very helpless, "Then it can only be good steel used on the blade."

Since I couldn't use the Sun-Diagnosing Grass, I simply activated My Eyes and picked up the remaining vitality on the ground with a slight difference. This might be useful, but I haven't used it before, so I can't guarantee that it will work. On the other hand, Shen Ling also tried his best to find a way to avoid the surveillance and enter the clinic, but unfortunately none of us succeeded.

Although I found some footprints on the ground that might be the murderer's, these footprints were all entered through the gate, which was completely different from what was captured in the surveillance video, so for a while, I fell into deep thought.

"What are you thinking about?" Shen Ling asked.

I pointed to the ground at the door and said: "The traces on the ground all show that people came in through the door, but there are no traces outside the door." As I said that, I looked up and saw the outdoor unit of the air conditioner hanging outside the door, and the outdoor unit said It was surrounded tightly by some tattered cardboard.

"What's wrong?" Shen Ling saw that I suddenly became silent, thinking that I had made a new discovery, so she asked hurriedly.

"Wait for me, I think I understand." I grabbed Shen Ling's arm and said.

I took out Yangcai grass from my pocket and sprinkled it carefully on the cardboard. Sure enough, traces of anger soon appeared.

Shen Ling looked at the cardboards in surprise, and then said, "You mean, the murderer has been hiding here?"

"It's possible." I pointed to the cardboard and continued, "If the murderer is not tall and thin, then it is entirely possible that he is hiding behind the outdoor unit of the air conditioner. It is winter now, and it is blocked by these cardboards. It’s not too cold, in theory it’s entirely possible.”

After saying that, I sprinkled some sunflower seeds inside the cardboard, and immediately, a few unclear footprints appeared on the ground surrounded by cardboard.

"So it's not a secret room murder at all, it's just a normal cover-up method?" Shen Ling said.

"That's right." I nodded and said.

After that, I ran under the street light across the road and found that the street light had become shaky due to years of disrepair, and the most fatal problem was that the street light seemed to be a few centimeters lower than the normal lifting height.

Shen Ling saw me staring at the street lamp, walked over and asked, "What's wrong with the street lamp?"

I explained: "Look, this street light is much lower than other street lights. In this case, its illumination angle will cover less, and it will be easier to leave a blind spot in the field of view for the surveillance at night, because It was too dark, and the surveillance was not clear enough, so it was easy for the surveillance to fail to capture the murderer."

"But how did the murderer get in?" Shen Ling asked.

"The person who jumped in, although the straight-line distance from the air conditioner to the door is more than 3 meters, considering that the murderer took off from the air conditioner, which means he has a lateral speed, so he should be able to jump farther. For some For people with good physical condition, it may not be difficult to jump in directly." I explained.

After I finished all the analysis, Shen Ling understood everything at once, so she said to me: "If this is the case, we can retrieve a week's worth of surveillance footage. The murderer can't go without eating or drinking, right?"

"It's not easy, Ling'er. I just looked at the surveillance equipment. It's an old model from 10 years ago. The previous data will be overwritten in three days, so we may not have good results when we search for the video. "I said helplessly, "This is nothing. As long as it is investigating a case, surveillance is not easy to use."

After hearing my complaints, Shen Ling also laughed and said, "Maybe this is life."

Since the monitoring was not needed for the time being, Shen Ling and I discussed that we should wait for the street lights to turn on at night before doing the actual simulation on site. So we went directly back to the city bureau, dragging along He Xiaofei, Peng Xin, technical Liu and Lao Wang The routine meeting started directly.

As the team leader, Shen Ling was the first to say: "Let me tell you my and Lu Huan's judgment first. It is very likely that the murderer passed through the air conditioner hidden outside the bathroom in advance under the cover of night, and waited until the night when people were quiet. He entered the health room and finally raped Huang Cuicui and killed him."

Then, Shen Ling expressed our thoughts again, "So Lu Huan and I decided to go to the field to simulate the scene tonight to see if our inference is correct. Okay, everyone, tell us about your investigation. Let’s get it done.”

Peng Xin immediately picked up Shen Ling's words and said directly: "The JY component left by the murderer in Huang Cuicui's body has been identified to be very active. Therefore, I judge that the murderer cannot be over 40 years old, and his age is probably around 30 years old." Between the ages of 20 and 40, they are young and middle-aged men.”

"That is consistent with our previous inference, because there is a long distance from the air conditioner unit to the door, and the distance from the ground is more than 3 meters. It is not easy for a young man to jump over." Shen Ling confirmed Peng Xin's conclusion. statement.

After that, Technical Liu said: "I have done some research on the footprints that Xiaohuan found before. They should be the pattern of a relatively expensive shoe, but the brand of shoes is very ordinary. I think we can start from this aspect. "

"How do you say this?" Neither Shen Ling nor I understood what Technical Liu was thinking.

Technician Liu smiled and replied: "I just looked at the price of this kind of shoes on TB, and they are generally more than a few thousand yuan, so I want to try if I can place an order through express logistics to find the murderer. "

"This is a good idea. Rich people who buy these shoes will not wear them for a long time. All order records within a year have to be checked. I leave this to you, Technician Liu." Shen Ling said with a smile, "Okay, If you really find it, you will have made a great contribution."
Chapter completed!