Wu Gan pulled Qin Yan upstairs, the goal was very clear, it should be the rooftop of the building, when the two of them came to the end of the stairs, they saw that the gate to the rooftop was guarded by an iron general.

"Money strings, such a big lock, it's still locked, why are you going up?"

"Old Qin, you still don't understand?"

Of course, Qin Yan understood, "You judged that Zhang Mengdi jumped from the rooftop, I have already seen this, but what about the evidence? This door is obviously locked from the inside, do you mean that the murderer left Zhang Mengdi on the rooftop of the building, and then locked the door, so that Zhang Mengdi jumped down? This can determine that she was murdered? Brother, Zhang Mengdi has a mobile phone on her, she can contact others...... I think, even if you find evidence that Zhang Mengdi jumped from the rooftop, maybe after she came up, someone saw the door lock opened, and then locked it again, and Zhang Mengdi was alone on the rooftop, and she ...... Unless I go to interrogate now, no one locks the lock, and the lock is locked, and it is like a murder. ”

Wu Gan smiled after hearing this, "Let's go up and check, and then say that the conclusion is not good?"

Qin Yan had no choice but to start looking for the key, and after looking for it, he found that the key to this rooftop was not on this key plate.

"...... "You look at me, I look at you, and then...

"I'm not going down anyway. ”

"I'm tired too!"

"That'...... A public official once ...... to me"

"Your uncle's! money skewers! you ...... You wait for me!"

Qin Yan had no choice, so he had to go downstairs to find the housekeeper again.

......

After a long time, General Tie was opened by the snorting Qin Yan, and the two of them walked onto the rooftop.

Dormitory No. 16 is an 8-story building, and the building is a bit old, which is a common problem in Chinese universities.

The roof of the building, which is now used as a place to dry quilts or cool clothes, is more humid in the south.

Wu Qian and Qin Yan came to the roof of the building, and saw a lot of quilts hanging on the clothesline, obviously, the school just started is the peak period for drying quilts, because those quilts may have a holiday, of course, not all the clotheslines are occupied, the so-called clotheslines, is the wire.

Wu Qian seemed to go straight to the edge of the building.

It should be for safety, the roof of this building is set up with a railing, aluminum alloy, about one meter four in height, it looks very new, and the building does not match well, I think this is the rear installation.

Came to the edge, a little empty, dormitory 16 is relatively isolated, surrounded by a small forest, the environment is very good, much stronger than dormitory 33 and dormitory 32.

Walking along the edge of the wall, walking slowly, it didn't take long for Wu Gan to scream.

"Lao Qin, come and see. ”

"What's wrong?"

Qin Yan walked over to take a look and found a little bit of weirdness.

The iron railing on the roof of this building is not completely built against the edge of the wall, leaving an edge of about less than half a meter, which should also be for safety reasons, or it may be convenient to erect.

And at the edge of a wall, there was a red mark, facing the corpse, and Room 703.

"Did you find out?" Wu Gan smiled.

Qin Yan frowned, as if he had comprehended something, "Hand, left hand, Zhang Mengdi grabbed this railing with his left hand before jumping down." ”

Wu Qian nodded.

Qin Yan said with some excitement at this time: "So, Zhang Mengdi's left arm has a puncture fracture.

Therefore, this is the place where Zhang Mengdi fell from the building!"

Qin Yan didn't care so much at this time, and said loudly with some excitement: "Then, does this mean ......?"

He was halfway through his sentence and immediately stopped.

"That's right, this doesn't mean that Zhang Mengdi was murdered. Wu Qian was still very helpless, "Moreover, the reasoning before you came up is also reasonable, unless it can be proved that Zhang Mengdi jumped from here, and no one has locked the big lock on the rooftop." ”

"Damn!" Qin Yan was very angry, but he couldn't help it, he knew that what Wu Gan said was right, and what Wu Gan said was what he said.

Jumping off a building to commit suicide, sometimes people out of instinctive reaction, it is likely to reach out and grab something, which is the survival consciousness hidden in the depths of human consciousness. It does not mean that this is not a suicide.

Moreover, there are problems with the determination of the location of this fall itself.

There is only one red mark on this edge, how much genetic material is on this red mark, neither of them is particularly professional, I really don't know, but I usually read a lot, and I understand a little, to do DNA or something, there must be a certain amount of liquid in it, and there must be a certain amount, but this red mark has been exposed to the wind and sun for such a period of time, and it is estimated that it is difficult.

In other words, this red mark may not be judged to be caused by Zhang Mengdi from a technical point of view.

Qin Yan thought of one more thing, "Then I'll check now, have any classmates locked the lock on the rooftop?"

Wu Qian shook his head, "There is no rush in this matter, and even if you ask it, it will not be any evidence." ”

"Qian Chuanzi, what do you mean, right?" Qin Yan thought for a long time, but he couldn't get the point.

"It's difficult!" Wu Gan spread his hands, and then he said: "I'll give you a picture of the situation of this case now, if this is a suicide ......"

Without waiting for him to finish speaking, Qin Yan directly rushed to say: "Look at it now, it's suicide! The suicide last words are there, admitting that she is the instigator, this is a confession, everything else is normal, when Zhang Mengdi jumped off the building, no one was near her, even if she jumped from the rooftop, but the big lock, and this key, the dormitory teacher promised that no one had borrowed it today, doesn't this prove that no one has come up?"

In other words, someone wouldn't have pushed her down the stairs at all, so isn't this suicide!"

"That's right. Wu Qian nodded.

"Then what did you find? Have a clue?" Qin Yan looked at Wu Qian expectantly.

But Wu Qian shook his head, "I said it and found nothing." ”

Qin Yan couldn't do it, "Then isn't this suicide!"

This is definitely suicide, at least for now.

What did Wu Qian say?

"That's why I say it's hard. ”

The sentence "You ......" almost didn't make Qin Yanqi vomit blood, but he reacted very quickly, and immediately asked: "Qian Chuanzi, tell me well, why do you think this is a murder? It's so obvious, and now that there is no evidence, how can you think so?"

"Suspects. Wu Qian patted Qin Yan on the shoulder and said, "Do you remember what I told you before, I have already circled the suspect?"

"That's right. But you said that you have no clues, no evidence, what should you do?" Qin Yan immediately figured out what Wu Gan meant, but he immediately questioned, "Qian Chuanzi, you are too confident, right?

Wu Qian smiled, "I also think I'm wrong, so it's comfortable, it's simple, this is suicide, and the case can be closed." However, I couldn't convince myself that it was suicide. ”

The words were said very solemnly.

"I can make a bet with my personality, my everything. ”

Qin Yan hurriedly said: "Qian Chuanzi, I believe in you, I really believe in you, I am not Director Jiang, since you think it is murder, then, let's investigate in the direction of murder, I absolutely support you." ”

Qin Yan felt that the case that Wu Qian was facing this time was extremely difficult, well, he was also facing it himself, but as a criminal policeman, the only judgment he could make at present was suicide, and if this case was changed to another police force, he could directly clean up and close the case.

Suicide cases are relatively simple, but they must go through the procedure, because suicide is an unnatural death, and if you want to be cremated and buried, you must go through the procedures of the police.

"Okay, follow me!" Wu Qian pulled Qin Yan downstairs, and soon, the two of them came out of dormitory No. 16.

Lin Bing, Li Xue and the female master of ceremonies, and other classmates also greeted them.

But Wu Qian asked a very strange question.

"This master of ceremonies, may I ask, Zhang Mengdi is not left-handed, right?"

"That's right, she's right-handed. ”

"Classmate, answer me one more question, that is, when did Zhang Mengdi start taking sleeping pills to fall asleep?"

"A year ago. ”

"Good!"

At this time, Wu Gan turned around, only to see him in a Burberry suit, pointing directly at Lin Bing and Li Xue.

"Now, I, Wu Gan, use my personality and can even swear to everyone with my life! The murderer who instigated Wang Lian to kill people and the murderer who killed Zhang Mengdi are among the two of you!"

As soon as these words came out, the scene was quiet...