Captain is a sick beauty

In the trace inspection room, Chen Yin covered her mouth and yawned. She turned to the back of the chair and tapped on the computer for a while, watching the progress bar that kept moving forward, and she was slightly relieved.

Although she told Pei Qingyu that the results would come out in the morning, she actually didn't want her junior brother to stay up all night.

Chen Yin estimated the completion time of the test, set an automatic shutdown for the equipment, and decided to change clothes before locking the door and going home.

As soon as she left the door, Pei Qingyu strode into the examination room with Xun Yin on her back.

"Where is Senior Sister Chen?"

Xun Yin frowned slightly as he looked at the trace inspection department with the lights on but no one there.

Pei Qingyu didn't speak, he quickly glanced around, went straight into the inner room and picked up the half-soaked rope.

He raised the rope, and watched carefully along the length of the rope from top to bottom. When he checked the end of the rope, the movements of Pei Qingyu's hands suddenly stopped.

"Ah Xun, come and see."

Xun Yin didn't know what he was looking at on the desk beside him.He looked back at the sound, and as soon as he turned his head, he almost bumped into Pei Qingyu directly.

Pei Qingyu still had a little sweet smell of bread on his body. He glanced at Xun Yin who took a step back in embarrassment, and moved a little closer for unknown reasons.

"team leader..."

Xun Yin's back was already stuck to the wall, the aroma of bread mixed with Pei Qingyu's own breath surrounded him, the tips of his ears turned red again, he took a deep breath and forced himself to turn his gaze to the rope.

"Look at the end of the rope, it should be where Lele's neck was strangled."

Pei Qingyu traced the section under the bloodstain with his fingers, and continued: "Lele was dead before falling, and there was no broken rope around his neck when he fell, which means that the knot was loosened automatically and made him fall. of."

"Ah."

Xun Yin nodded, he carefully looked at Pei Qingyu's finger, and his expression gradually became serious.

"Do you see the clues?" Pei Qingyu turned the rope around in front of the light, and said softly: "Calculate the timing and the tightness of the buckle, so that the rope will loosen by itself at the estimated time and make people fall. It needs to be tied very carefully. .but..."

"The end of this rope is very clean, it can almost be regarded as...without any trace." Xun Yin continued in a deep voice.

As soon as he finished speaking, all the lights of the Trace Inspection Department suddenly went out with a "snap", Xun Yin subconsciously pulled Pei Qingyu behind him, and his eyes suddenly fell into darkness.

In the case of weakened vision, other senses will be magnified in an instant, and Xun Yin can feel Pei Qingyu sticking tightly in front of him, and the smell mixed with the sweet smell of bread becomes stronger again.

"Ah Xun you..." Pei Qingyu seemed to turn his head to ask something, and his slightly long broken hair happened to brush against Xun Yin's chin.

The tips of Xun Yin's ears started to feel hot again, he blurted out without knowing what to think: "Captain, I didn't turn off the light."

As soon as these words came out, the two of them seemed to be a little stunned, breaking the silence with the crisp sound of locking the outer door.

Pei Qingyu couldn't hold back, and burst out laughing.

Xun Yin stood motionless on the spot, expressionlessly helping Pei Qingyu, who had turned from laughing to coughing lightly, along his chest, listening to Pei Qingyu laughing for a while and speaking.

"...Ah Xun, do you want to stop talking and see if you can turn on the light?" In the darkness, Pei Qingyu said helplessly with a smile: "Otherwise, I can only believe that the senior sister accidentally locked us in Here it is."

·

"The door is locked, Xiaochen should have left, Ah Xun—" Pei Qingyu shook the doorknob, turned around and called Xun Yin with a smile: "I just wanted to ask you, did you bring your mobile phone?" ?”

Xun Yin shook his head subconsciously before realizing that Pei Qingyu couldn't see it, he paused and said, "No."

Pei Qingyu was silent for a moment, then sighed: "I didn't bring either...then there are really only two of us left in this building."

"Then we can only..."

Pei Qingyu walked aside in the dark while talking, Xun Yin took a nervous step forward, but saw a dim desk lamp suddenly lit up in front of him: "We can only continue to study this case, come sit down, Ah Xun."

"...Okay." Xun Yin didn't know what he was expecting, so he answered in a low voice and sat down.

As the light source got closer, the details of the rope became a little more realistic.The two checked it carefully again, and decided to start deducing the case.

Xun Yin put on his gloves, picked up the end of the rope and tied a knot, Pei Qingyu put his wrist in and fell into the noose, stretched out his hand and tugged, not only did the knot not loosen, but it became even tighter

"No, it can't be loosened." Pei Qingyu shook his head, "The strangle marks on Lele's neck are not obvious, and the knot needs to be more careful."

Xun Yin gently removed the noose from Pei Qingyu's wrist, took off his gloves and tied a more delicate knot again.

He held a gun in his hand all the year round, with calluses on his fingertips, protruding phalanges, and his fingers looked extraordinarily slender as they fluttered.

Pei Qingyu couldn't help but be a little lost in thought, until 5 minutes later when Xun Yin handed over a knot again, Pei Qingyu suddenly came back to his senses.

While reaching into the noose, he looked at the hands of the watch next to him covertly: "How many minutes can this knot last before it comes loose?"

"It's too fast, it probably won't last long." Xun Yin looked at Pei Qingyu's thin wrist, a little dazed, and thought for a while, "I can last for 5 minutes at most."

The two had different thoughts in their hearts, and they sat silently at the table watching the pointer deflect a little bit. When it was close to 5 minutes, the knot was loosened with a "snap", and Pei Qingyu's wrist fell instantly.

Xun Yin quickly reached out to catch Pei Qingyu's wrist, he seemed to have thought of something, while stroking Pei Qingyu's wrist unconsciously, he frowned and said: "I just experimented, and it is impossible to make such a delicate knot with gloves on. So the murderer must have tied it with bare hands. But there are no blood fingerprints on the end of the rope..."

"So the blood fingerprints we collected may not be related to the murderer and are useless."

Pei Qingyu seemed to feel a little itchy, he patted the back of Xun Yin's hand, Xun Yin suddenly realized what he had just done, and immediately let go like a hot potato.

Pei Qingyu rubbed his wrists inexplicably, and continued: "Similarly, the footprints sent for testing may have been covered up many times, and useful information may not be extracted. Maybe we can collect the fingerprints left on the rope, but This rope is too thin, so it may not be possible to extract it completely."

Xun Yin was silent for a moment, got up and walked indoors.The test time set by Chen Yin was over, Xun Yin called up the test report and pressed print, he took a quick glance at the flashing light of the printer, and walked back with a sullen face.

"Two kinds of footprints were detected, one belonged to Lele, and the other was unknown. As for the blood fingerprint—the corresponding person was found in the DNA library, but it was a prisoner who had been in prison for ten years."

"What?" Pei Qingyu was a little surprised. After receiving the inspection report, he saw that it was indeed the case: "How could it be?"

In order to protect the physical evidence, the temperature in the trace inspection room has always been lower than outside. Pei Qingyu pressed his aching temple, took a light breath and sighed: "Forget it, we can't verify these now. Continue to follow the previous thinking—— According to the deduction of the case just now, we can investigate from the time."

"Lele died 1-2 hours before falling from the building. If the murderer wants to make an alibi, he needs at least a knot that can let Lele hang there for more than 1 hour. According to the time spent on tying the knot just now and Lele To compare and convert your weight - the murderer needs at least 1 hour of preparation time."

Pei Qingyu slowly stroked the clues, and his thoughts gradually became clear: "Few people know that the rooftop leads directly to the light sign below, so the best way for the murderer to leave is to appear on the rooftop and be recorded by the surveillance camera after everything is arranged. The alibi is done."

"Arrive at the roof ahead of time, trick Lele to come up, kill | people..."

Pei Qingyu suddenly raised his head and said, "Let Song Ranran narrow down the monitoring scope of the thorough investigation, and only need to check the people who passed the rooftop three hours before Lele's death."

"it is good."

Xun Yin nodded and was about to get the phone, but suddenly withdrew his hand embarrassingly. Pei Qingyu was also stunned for two seconds before suddenly laughing, and sighed: "It's true...I'm not used to anything without my phone all at once."

While talking, Pei Qingyu suddenly hissed softly, and couldn't help reaching out to put his hand between his eyebrows again.

After using his brain intensively for too long, his heart began to clamor for discomfort again.Pei Qingyu kept rubbing the center of his brows, feeling the drunkenness that had been suppressed in the first half of the night surged up again, making him dizzy.

"It's okay, I'll help the captain remember, and tell Song Ranran immediately when I get out." Xun Yin looked at the extremely pale man in front of him, and replied in a low voice.

"Hmm..." Pei Qingyu nodded, his eyelids were gradually heavy, but he was reluctant to fall asleep, and said softly, "Xiao Xunyin, talk to me, I'm so tired..."

"Okay, what does the captain want to say?" Xun Yin waited for a while but saw that Pei Qingyu didn't respond, so he had to start thinking about the topic.

He was not good at words, and he couldn't think of anything when he was nervous. After thinking for a while, he said: "The captain thinks, what method did the murderer use to lure Lele to the rooftop?"

"Ahem... Ah Xun is really dedicated to his work, and he can't do without the case even if he goes around."

Pei Qingyu had almost fallen into a coma, and opened his eyes dumbfounded when he heard Xunyin's question, and slowly analyzed: "There should be many ways, but everything is guesswork until we have absolute evidence. The autopsy did not rule out acquaintances before. The possibility of committing the crime may be that someone he knows told him to come to the rooftop to find him something, or someone forced him to come with something..."

Pei Qingyu frowned suddenly as he was talking, he seemed to have thought of something, his body trembled slightly and wanted to stand up, but his arms were weak, and his heart was throbbing with pain due to fatigue and alcohol, he groaned softly, He grabbed Xun Yin's hand.

"team leader?"

Xun Yin was taken aback, and quickly grabbed Pei Qingyu's wrist. The pulse under his fingers was beating rapidly. Pei Qingyu raised his eyes to look at Xun Yin, panting, "No, the location is wrong."

"What?" Xun Yin frowned.

"If it's as we speculated, Lele was killed|killed on the rooftop..." Pei Qingyu grabbed Xun Yin's fingers and clenched them tightly, "Then why didn't we find any trace when we went up to check?"

"Maybe our speculation was wrong. The scene of the first crime is not there."

While talking, Xun Yin subconsciously deduced: "But... no, in this case, there is no need for such a complicated alibi."

"There is another situation, that is, there is something wrong with the person who took us to the rooftop." Pei Qingyu gasped and pressed his chest suddenly.

Xun Yin hurriedly hugged Pei Qingyu who was suddenly limp, and instantly understood what Pei Qingyu meant, his eyes widened slightly, and he said in a low voice: "Captain, you mean...Zhou Yang?"