Chapter 169 Come and try

An hour later, Shanhai Xiaozhu.

Xiao Zeng had been hanging around here for most of the day and was quite familiar with the scene, so he came closer to Xu Da.

After talking about the results of the investigation into Mr. Chen, it turned out that he had also been extorted a sum of money, and the conditions for leaving were even more unbelievable. Help her find a new home and continue to work as a high-end nanny.

Xu Dayuan asked Xiao Zeng to contact the nanny Liu Yinuo, whether she was a chicken or a nanny, to at least verify the time and place of the crime. Then Xu Dayuan left, taking many people with him.

Da Zhao looked at the direction of the car and kept shaking his head.

"The leader is on top."

"I think we need to investigate Luo Qian. We have some preconceptions. We always feel that this person takes the initiative to help Dong Chengwen with the lawsuit, so we are less suspicious of her. But the investigation of the case is not a guessing game. We need to identify every suspect.

.

Enough nonsense, let’s get to work. Although the backyard was surveyed last time, nothing was found. If someone stood in the backyard and threw Molotov cocktails, there would be traces of him leaving. This time we will search for surveillance blind spots."

Several people nodded, and Yang Xuetong led Zhu Xingxing and Sun Gaotie towards the other side of the bush fence. After all, if you want to search like a carpet, you can't miss any corner.

Da Zhao did not participate. He grabbed a pebble on the ground, stood on the northern edge of the bush, and took a look at the surveillance position. He could not see it at all.

He raised his hand and threw it towards the window of the cloakroom on the second floor. With a swish, the pebbles flew into the window, and they entered against the upper edge of the window.

Zhou Ning glanced at him. Although Da Zhao had a good physique, he was not strong in strength. When they had arm wrestling before, Sun Gaotie easily defeated him. Since he could throw him in, the woman should be able to do it too.

Zhou Ning picked up a pebble and called Zhu Xingxing over. Zhu Xingxing looked confused, thinking that he had done something wrong, and looked at Zhou Ning cautiously.

"What's wrong, team leader?"

"Here, follow what Zhao did just now and throw the stone into the cloakroom window. Can you do it?"

Zhu Xingxing said "Oh", stood at Da Zhao's position, threw the stone lightly, and the stone flew into the room.

"If you throw a two-pound object, standing in the farthest northeast corner, do you think it can be thrown in?"

Da Zhao became interested. He knew that Zhou Ning wanted to test whether a woman could complete this action.

"Wait, I'll find something for you."

After saying that, he ran away quickly and came back with a large mineral water bottle, which he stuffed directly into Zhu Xingxing's arms.

"It's not the right weight. This one is 1.3 liters. How about I drink some?"

Zhou Ning rolled his eyes, but before he could say anything, Zhu Xingxing was already standing in the northeast corner, raised his hand, and threw the bottle in without even touching the window frame.

Da Zhao turned back to look at Zhu Xingxing and was dumbfounded. He kept looking up and down at Zhu Xingxing.

"You look so skinny, how can you be so energetic?"

Zhu Xingxing looked confused and looked at Zhou Ning doubtfully.

"Team leader, should I throw it in or shouldn't I throw it in?"

Da Zhao raised his head and laughed. After laughing enough, he pulled Zhu Xingxing out of the way.

"What Zhou Xiaozhou means is to find a girl and try to see if it is difficult to throw from this height. You are throwing too easily."

Zhu Xingxing rubbed his nose and rubbed his neck towards Da Zhao, no longer in the confused state just now.

"Men with explosive power naturally have an advantage, but this kind of throwing does not require a lot of strength. Let alone those who work in forensic medicine, the little nurse breaks ampoules and throws them into the trash can every day. The accuracy is unmatched by ordinary people. There are also teachers and chalk heads.

Don’t say you haven’t tasted its power?”

Da Zhao rubbed his nose and lowered his head, but Zhou Ning nodded affirmatively.

"Xiao Zhu is right. Professional habits and behavioral habits are indeed an aspect to consider. However, after we experimented for a long time, the surveillance before and after this angle could not capture it. But how to leave this courtyard? Climb over these shrub walls?

"

In a word, several people looked at the shrub walls. This community has been built for three or four years. These shrub walls are very tall and airtight. There is an iron fence in the middle, and shrubs grow around the outside. Not to mention summer, even winter is complete.

You can't see the outside. With such a double-layer structure, how can anyone find a gap to get out?

"I said to Zhou Xiaozhou, don't even think about it from the bush wall. There is no gap, and it is even more impossible to climb over it. I can't even reach the top at my height. How can I climb over? Besides, when I climb over, the surveillance camera can see that this direction is wrong!

"

Zhou Ning stared at the north door of the villa. This door is a stainless steel security door with double-layer glass. It is quite exquisite and beautiful. Although this location is under the cloakroom, the fire did not engulf it, so the glass on this door did not

broken.

"Have you taken fingerprints at Beimen?"

Yang Xuetong came over, raised his hand and said:

"I collected it during the last survey, and no fingerprints were found on the north gate."

Yang Xuetong nodded very firmly.

"No fingerprints were found. There was dust on the handles inside and outside the door. I scanned them and collected them. I only found some circle marks, not marks from thread gloves or latex gloves.

I made records and when summarizing, there was no such option in the form and I didn’t fill it out at the time, but what can be concluded is that this door was carefully cleaned before the fire. Take a look, team leader."

Yang Xuetong's voice became quieter and quieter. He felt that if there was no special discovery, he did not report it in time. Now he felt a little less confident. Zhou Ning did not say any words of blame and enlarged the tablet picture he handed over.

The mark was not big, no more than 1.7 centimeters in length, and there were irregular spots and scratches on it. Zhou Ning thought about it for a long time, and his eyes lit up.

"It's the mark of a towel. Whether it's a latex glove or a thread glove, it looks awkward when it appears at this fire scene. The mark of the towel is different. It's easy to be ignored as a trace of cleaning. With this length and position, I'm afraid someone put a towel on it and pressed it down."

Remove the door handle."

Da Zhao came over and extracted the traces. Zhou Ning closed his eyes, and a person seemed to appear in front of him. He covered his face with one hand and put a towel on the other. He opened the door and rushed into the villa. Then he went directly downstairs and left from the garage. Zhou Ning opened his eyes

Eyes said firmly:

"After throwing the Molotov cocktail, it is unrealistic to go through the front door or over the wall without being recorded by the surveillance camera. Then there is only one way left, which is to enter through the kitchen door and then leave from the basement. As long as you avoid the surveillance camera, you will not be able to leave any traces.

.”

Zhou Ning paused, Da Zhao looked in disbelief, pointed at the north gate and said:

"This is locked."

Zhu Xingxing looked excited and said first:

"I think there are many people who have keys. The two nannies, Dong Chengwen, Fang Hua, and the property manager. Of course, such a big house will not have a spare key, right?"

Zhou Ning narrowed his eyes, spare key?

Don't forget this. In the utility room on the first floor, there were many things taped to the wall, and the gas receipt was found there.

Yang Xuetong came over and said doubtfully:

"If you leave from the garage, can the surveillance camera fail to capture it? All the surveillance cameras collected on June 29, not to mention the Jingkou branch and even Xu University, have screened them several times and found no one leaving the underground garage?"

Zhou Ning waved her hand and dialed Xiaoqu's phone number.

"We have arrived at Shanhai Xiaozhu, and we need to do an experiment. You said before that you can remotely control and monitor whatever I ask people to do, right?"

"Yes, I gave Sun Gaotie a box similar to a power bank and asked him to go to the monitoring room. I just told him how to plug it in."

"Okay, you can find us from the surveillance later and compare it with the surveillance from the previous 29 days to see if you can see us."

After hanging up the phone, Sun Gaotie had already raised the bag in his hand. Zhou Ning had just answered the call hands-free. He knew it was his turn to go on stage. Sun Gaotie was very excited to be able to complete one thing alone.

"Team leader, I'm going to the monitoring room. Brother Qu has told me what to do."

Zhou Ning nodded and Sun Gaotie ran away. They put on their shoe covers and were fully armed. They entered the villa through the north door. Zhou Ning pressed the timer on his phone, bypassed the stairs and went straight to the utility room.

Next to the counter where Dong Chengwen's coat was found, there was a message wall with several small hooks in the shape of artistic antlers, hanging three sets of keys, one of which had a self-adhesive sticker on it.

Zhou Ning took it off and looked at it one by one. It marked the back door, garage, master bedroom, study room, children's room, and guest room. Obviously this was the spare key. Although the other two sets were not marked, the keys were exactly the same.

"Sure enough, there is a spare key."

Yang Xuetong opened the evidence bag and threw the three sets of keys in. However, it was unlikely that he would find any clues. They all knew that the murderer had strong anti-reconnaissance capabilities. They all knew that there was a towel on the door, so how could there be any clues on it?

What traces are there?

"Throw the Molotov cocktail, then return the spare key and go downstairs directly. Let's go down and have a look."

Several people followed Zhou Ning downstairs, passed through the security door on the first floor, and came to the garage. Zhou Ning glanced at the time. They stayed for a while, and it only took a minute.

Just as Zhu Xingxing was about to press the button of the rolling shutter door on the wall, Xuetong Yang stopped her.

"Doctor Zhu, don't worry, I'll take a sample first."

Da Zhao waved his hand.

"I have already taken samples here. I found Fang Hua and Dong Chengwen's fingerprints on the buttons. As for the door handle, there are also two people's palmprints and some circle marks. According to Zhou Ning's analysis, I am afraid it is the murderer.

I put a towel on the handle and opened the door, but why couldn’t the surveillance camera capture it?”

Zhou Ning opened the security door.

"Don't worry, you'll know after you try it!"
Chapter completed!