Chapter 2274： Tan Yunduo's discovery

A smile flashed across Wang Hao’s mouth. He looked at the vent pipe and said, “This vent pipe is 30 cm long and 40 cm wide. Let alone an adult who has to pass through here, even a child is a bit difficult, and According to my firm

It is known that the pipe connected to the room is not the narrowest section. There is also a section of the passage that must be passed through, which is only 30X30 wide. "After hearing Wang Hao's words, Yan Hua and the others all sank in their hearts. It seems that the previous guess was wrong. Then the question is, how did the murderer do it? God appeared in Room 608 without knowing it. And then unknowingly

After killing Xu Wen, he left quietly.

If this problem is not resolved, then there is probably no way to continue the investigation of the case.

Tan Yunduo was also quite disappointed when he heard Wang Hao's words. After discussing so many suspicious points before, he didn't expect it to be useless in the end.

This can't help but make her feel a little worried, to know that Yang Wei is still locked up now.

but.

Just when Tan Yunduo was in a hurry, she suddenly moved in her heart, looked at Wang Hao, blinked, and a suspicion flashed in her beautiful eyes.

Although Tan Yunduo's ability to handle cases is a bit problematic, she has one advantage, that is, she has a woman's intuition.

Now her instinct told her that there was a problem with what Wang Hao said, but she couldn't figure out what was wrong.

Seeing that there were no useful clues, Yan Hua was also a little disappointed in his heart, and said: "Then Manager Wang, I will disturb you this time. Let's go back first. Let us know as soon as possible if anything happens."

Tan Yunduo frowned Liu's eyebrows and thought for a while, but still couldn't think of it, and when he heard that he was leaving, his face was anxious, and he hurriedly shouted, "Wait."

The others all looked at Tan Yunduo immediately.

Yan Hua asked suspiciously, "Yunduo, what else is there?"

Tan Yunduo, no matter how strong his nerves are, it is impossible to say doubts about him in front of Wang Hao. He opened his mouth and said, "Well, I, I think I should take a closer look."

Yan Hua couldn't laugh or cry, and said, "Yun Duo, I know you want to help Yang Wei get rid of the charges, but the search has already been done here. No matter how you search it, it will just be of no avail."

When Tan Yunduo heard this, she knew that Yan Hua was right, but she had a feeling that there was indeed a problem with what Wang Hao said just now, just when she didn't know how to explain it.

The worker who opened the ventilation pipe removed a filter from the ventilation pipe, looked at it a few times, and muttered, "Why is it so clean? This thing was only cleaned several months ago."

Others did not respond to his words.

There was a flash of light in Tan Yunduo's mind, his beautiful eyes brightened, and he said excitedly: "That's it!"

Yan Hua was startled: "What's the matter?"

Tan Yunduo did not reply, but asked the worker: "Master, you said that the ventilation pipes here have not been cleaned for several months?" The master nodded when he saw the policeman and asked himself. : "Yes, the ventilator in this room was broken last time. I came to repair it, because this floor was only broken here. I remember it very clearly. It should have been 6 months ago.

Got it. "

Tan Yunduo's eyes lit up, and he pointed to the filter in his hand and asked, "Six months, so long time, it should have accumulated dust?" The master nodded and said affirmatively: "That's for sure. The quality of the filter is very good. It does not take 6 months to get a bit of dust in more than a month, but I don’t know if there is a problem with the ventilator here, and there is no dust.

, But I checked it just now and there is no problem with the ventilator. "

"Oops."

Hearing this, Wang Hao couldn't help but sink in his heart, and glanced at the master with a gloomy look, but at this time he couldn't say more, otherwise Yan Hua and the others would be suspicious.

At this time, he thought his performance was perfect, but he didn't expect that he had already aroused Yan Hua's suspicion long before.

Obviously, Wang Hao's wish was about to come to nothing.

Even he heard the problem, let alone Yan Hua and the others.

Now even if Tan Yunduo didn't need to say more, several people had already heard the problem.

Yan Hua's eyes lit up, and then immediately said, "Jia Ming, check the conditions in the ventilation pipe." He Jiaming was a little excited. This is a big discovery, and if he hadn't asked to look at the ventilation pipe, he wouldn't find this. The question, I can’t wait for a long time, when I heard Yan Hua’s words, I immediately responded, and then

I climbed up the ladder that the master brought, and got my head in to check it out. However, because the light was too dark, I could not see clearly, so I had to take out the mobile phone and take a closer look.

It didn't matter if he looked at it. After seeing it, he said excitedly: "Captain, there are traces of dust in the aisle."

Yan Hua lifted his spirits: "Very good! Don't spoil the scene, take a video first."

He Jiaming hurriedly turned on the camera and started video recording. Then he took a few more photos and came down from above. He grabbed the phone and said, "Look." Everyone hurriedly looked over the phone and saw He Jiaming's phone. , There is a situation in the ventilation duct. From the video, we can see that there is an obvious layer of dust in the tunnel, and on top of the dust, there are several

A very conspicuous drag mark!

Li Hao took a few glances and quickly affirmed: "I'm sure this is definitely a trace of crawling. In the past, when our police team was training on the sand, the traces left by crawling forward were like this."

Wang Yang said in disbelief: "But...this passage is too small, can people crawl in it? Could this be left by some animals, such as mice?"

Li Hao hesitated for a moment, and said, "This is not possible, but how big does this mouse have to fill the entire passage?"

"It definitely won't be an animal!"

After watching the video, Yan Hua didn't hesitate, and immediately asked Wang Hao: "Manager Wang, I need the ventilation duct design drawings of your hotel."

An imperceptible shadow flashed deep in Wang Hao's eyes, but he nodded quickly and said, "Okay, I will bring it to you now."

It didn't take long before Wang Hao brought the drawing of the ventilation pipe. Yan Hua grabbed it and looked at it. Just seeing the complicated lines on it gave me a headache. They weren’t professional and couldn’t understand it even if I looked at it carefully, but he didn’t plan to see it for himself, but let He Jiaming. I took the picture, and then sent it back to the city bureau to ask the city bureau to find an expert, while he took out his mobile phone to report to Ye Qiu.