Zhang Liang was stunned for a moment. He didn't fully understand what Li Wenyu meant, so Li Wenyu drove back and gave Zhang Liang a general overview of the situation.
It turned out that after comparing the scalpels brought by Zhang Bao, the forensics department actually found that the wound on the gas pipe matched the wound made by one of the blades! This discovery also surprised the forensics staff.
So they quickly tested the blade for fingerprints, but no fingerprints were found on the blade.
In fact, no fingerprints were found on any of the twenty-four blades, which led forensic investigators to wonder whether the knives had been cleaned after use.
After that, they tested the knife handles again. Eleven knife handles were tested in a row, and they were all completely clean. By the time of the twelfth knife handle, the forensics personnel had given up any hope. However,
The turning point of the matter occurred on the twelfth knife handle!
On the handle of this knife, forensic investigators actually detected two fingerprints. This is the only place where fingerprints were detected on this entire set of scalpels, including twelve handles and twenty-four blades.
The forensics officer immediately felt that something was unusual. If all the props had fingerprints on them, or if all the knives had no fingerprints on them, it would not make people suspicious, because no matter what the situation is, there can be reasonable evidence.
Explanation, but now only one of them has fingerprints on it, and the others don't, which makes people suspicious.
Therefore, the forensic personnel quickly called Li Wenyu and told Li Wenyu the results. When Li Wenyu heard this, he immediately instinctively realized that there might be something wrong, so he said what he said to Zhang Lianyu.
After listening to Li Wenyu's story, Zhang Badou was also very excited, which showed that his idea this time was really right. Sure enough, the scalpel was the "murderous weapon" used to cut the trachea, and the murderer didn't know whether he was careless or not at all.
I thought that someone would get this set of scalpels for examination, and it would leave fatal evidence!
Li Wenyu continued: "Our next goal is to confirm the identity of the owner of the fingerprint. You just said that you have a way to identify it. Are you sure?"
Zhang Liang nodded and affirmed: "If nothing unexpected happens, it should be fine!"
Li Wenyu said nothing more after hearing this, but stepped on the accelerator harder, and the two of them quickly rushed towards the criminal police detachment.
Soon, the two returned to the criminal police team. Li Wenyu took Zhang Liangliang directly to the forensics department. He first read the previous test report in person, then looked at Zhang Liangliang and asked him what to do next.
Zhang Baobao took out the bottle of anti-inflammatory medicine, handed it to the forensics officer through the plastic bag, and said, "Please check the fingerprints on this, too."
The forensic officers looked at Li Wenyu, and Li Wenyu nodded and told them to do as Zhang Liang said.
The fingerprint collection process was actually very fast. During this period, Li Wenyu did not ask Zhang Baoan anything. The two of them just waited for the results quietly.
Soon, the forensics officer came out with a new test report. He said to Li Wenyu and Zhang Liang: "It was found that there were relatively complete fingerprints of three people on this small medicine bottle, one of which was the same as the one found on the scalpel handle before.
The fingerprints match perfectly!”
Zhang Liangliang and Li Wenyu looked at each other. Zhang Liangliang was still a little calm, as if he had known this result for a long time, but Li Wenyu became a little more active at this time, as if he smelled the smell of the case, and he asked the forensic personnel
: "Where are the other two fingerprints? Can they confirm the identity?"
The forensic officer shook his head.
Li Wenyu was immediately troubled. If the other two fingerprints could not be eliminated, it would be difficult to find the owner of this completely matching fingerprint.
While Li Wenyu was still thinking about countermeasures, Zhang Liang suddenly spoke. He stretched out his hand and said to Li Wenyu: "Officer Li, please check my fingerprints. I think the other two fingerprints on the medicine bottle are...
, one of them should be mine."
Li Wenyu was stunned for a moment, and then he suddenly realized that, indeed, since the medicine bottle was brought by Zhang Bao, it would not be surprising that there would be his fingerprints on it. However, in order to distinguish the suspected fingerprint, he still asked the forensic personnel to conduct a fingerprint on Zhang Bao
collection.
The comparison result is indeed as Zhang Bao said. In addition to the suspect fingerprint, one of the other two fingerprints is indeed left by Zhang Bao. From this point of view, there is still another fingerprint left and the identity of its owner cannot be determined.
.
Li Wenyu looked at Zhang Liangliang again. Somehow, he suddenly had a feeling tonight that Zhang Liangliang would definitely surprise him.
Sure enough, after Zhang Baoyou lowered his head and thought for a while, he suddenly reached out and took out another thing from his pocket. Everyone looked closely and found that it turned out to be a car key.
Zhang Lianyuan also said with some uncertainty: "Try to test this. If nothing happens, there should be only two people's fingerprints on it."
This time, without waiting for Li Wenyu to nod, the forensics officer took the car key and went in for the test. After a while, the forensics officer ran out excitedly, holding a test report in his hand. He couldn't wait to say: "The result
It came out, and it turned out to be the fingerprints of two people, and they matched perfectly with the two fingerprints on the medicine bottle except the suspected fingerprints!" After saying that, he looked at Zhang Baolan with some surprise.
At this time, even Li Wenyu couldn't stand still. He also looked at Zhang Badian and waited for him to explain. Zhang Badian looked at everyone looking at him and couldn't help but smile bitterly: "This car key is for my girlfriend."
Friend, but I’m driving now, oh, by the way, Officer Li, you should also know her, she’s the one who took care of me in the ward when I was injured, her name is Bai Jingwen.”
When Zhang Liang said this, Li Wenyu suddenly remembered. He nodded in realization, and then said: "It seems that you, your girlfriend, and another person left fingerprints on the medicine bottle. I think
, then you should be ready to tell me who the other person is!"
Zhang Liang nodded, and suddenly said in a low voice: "That's the little nurse I told you about before, Mr. Qin." Although it can be said that he has found out these clues by himself, but for some reason, he said
After hearing the name Qin Dada, Zhang Liang still felt a little heavy in his heart.
When Li Wenyu heard the name Zhang Liang said, he sighed in his heart. Sure enough, it was still her. Although he didn't know why Zhang Liang persisted and doubted this little nurse from the beginning, but judging from the current facts
, his suspicion does not seem to be unreasonable.
Li Wenyu turned around and said to the policeman who had helped him arrest the gangster before: "Xiao Liu, take someone with you and go to the First City Hospital to invite our nurse back! Remember, we are not arresting
I am asking her to assist in handling the case, do you understand?"
The policeman named Xiao Liu agreed, turned around and left.
Li Wenyu looked at Zhang Baoan again and said: "Baoan, thanks to you today, I owe you a favor. You go back and rest first. I will tell you in time how things will develop."
Zhang Liang looked at Li Wenyu, as if he wanted to say something, but hesitated. Li Wenyu signaled him to speak if he had anything to say, and then he asked cautiously: "Officer Li, Daddy... Qin Dada, what will you do to her?"
ah?"
Li Wenyu said: "We will not take any measures at the moment. We are just asking her to come back and ask some questions. Although we have found these clues today, they are not enough. We still need to find out the motive of the crime, the specific time and the specific process.
Of course, with the relatively favorable evidence of fingerprints, if she is really the murderer, I believe it will not be difficult for us to figure out these issues. At that time..." Li Wenyu glanced at Zhang Lianyuan, and then said: "Then
At that time, we can only enforce the law impartially, arrest them, and then hand them over to the law for trial."
Zhang Liang hesitated for a moment, then plucked up the courage and said, "Officer Li, I want to participate in the inquiry with you, is that okay?"
Li Wenyu was a little confused after hearing this: "Well, according to regulations, the interrogation process is confidential, and outsiders are not allowed to participate..."
Zhang Liang said anxiously: "I promise I will never tell anyone, and I won't cause any trouble to you!"
Li Wenyu hesitated for a long time and then said: "Okay, I will make an exception and let you participate. Even if it means thanking you for helping us investigate the case, you can only listen and watch outside the interrogation room and cannot enter the interrogation room.
Inside, you also have to sign a confidentiality agreement, and nothing you see or hear will be leaked!"
Zhang Liangbao quickly nodded in assurance.
However, the reality still failed to meet Zhang Liang's wish. An hour later, Xiao Liu and his wife who went to the First City Hospital came back, but they did not bring back Dada Qin. According to their investigation, Dada Qin seemed to have left in the afternoon.
She went to the hospital, but she never showed up again, and no one knew her whereabouts. Xiao Liu and Xiao Liu asked the hospital for Qin’s address. When they got there, they found no one at home. In other words, Qin had left since the afternoon.
After the hospital, he disappeared!
The development of the matter was somewhat beyond the expectations of Zhang Liandi and Li Wenyu. Who would have thought that they had just confirmed that Qin Dada was suspected, and then she disappeared!
Xiao Liu asked Li Wenyu what to do next. Li Wenyu thought for a while and said: "Send some people to look for him for the time being. If no one is found within 48 hours, he will be treated as missing." Xiao Liu took the order and went.
Li Wenyu turned around and explained to Zhang Liang: "We will not file a case for the time being. After all, the matter has not been investigated clearly. After we collect some clues and confirm her criminal motive and criminal facts, we will determine the suspect and arrest her."
catch."
Zhang Liang nodded and said: "You are a professional in this area, I don't understand either, just follow the normal procedures."
Li Wenyu seemed to want to comfort Zhang Liangliang, and then said: "Although we can't take the next step, as far as the current situation is concerned, her disappearance has actually deepened her own suspicion to a great extent. From this aspect,
Said, the authenticity of our previous judgment has been greatly improved!"
Zhang Liang nodded, but for some reason, he couldn't be happy. It wasn't because Li Wenyu and the others didn't find Qin Dabao, but it seemed that his assumptions had become reality. Now, he was a little reluctant to believe it.
It’s a fact.
Li Wenyu saw that Zhang Baolan suddenly became silent, and didn't know what he was thinking, so he had to say: "Let's go, there is nothing we can do now, I will take you home first."
The two got into the police car again, and Li Wenyu drove to the residence where Zhang Bao was returning.
On the way, Li Wenyu thought about it and asked Zhang Boian: "Baan, although your thinking is going in the right direction this time and the facts are basically in line with your inference, I am still curious.
How did you come up with this? I think most people would not consider this when encountering this kind of thing."
Zhang Bao was a little embarrassed after hearing this. He said shyly: "Actually, I also
It's not as powerful as you said. At first, I just thought the death of the old beggar was a bit unexpected. After all, if a patient who was about to get better suddenly died, I think anyone would find it strange, so I paid more attention to it.
After knowing that the cause of his death was suffocation, I had two speculations, one was the physical cause, and the other was the external cause. I also consulted with my friends who studied medicine about the physical cause, but there was no result, so I thought of using medical equipment.
The authorities started investigating and unexpectedly found the gas pipe."
Li Wenyu nodded and asked: "What about the scalpel? How did you come up with the idea?"
Zhang Liang replied: "Speaking of this, I have to thank you, because when you mentioned the special knife, I thought of a scalpel. I just think that since the scalpel is used for surgery, it must be very sharp and should be
It will meet the conditions you mentioned. Moreover, the scalpel is a relatively easy-to-obtain tool in the hospital, especially for doctors. So I quickly borrowed it, because every time the scalpel is used, it will definitely
They all need to be disinfected, and if no surgery has been performed from midnight yesterday to now, there will definitely be no traces of use on the scalpel. In other words, if there is anything in the scalpel that can match the gastrointestinal tube
The wound matches the knife, and there are fingerprints and other traces on it, so if nothing else happens, it must have been left by the murderer!"
Zhang Bao finished speaking in one breath, took a breath, and suddenly felt that his mouth was a little dry.
Li Wenyu listened quietly to Zhang Badan's words and couldn't help but sigh: "Baan, the last time I saw you, I just thought you were a young man who had just graduated from school and entered the society. I didn't expect that your thinking would be so rigorous. This
This time I really want to be impressed by you."
Zhang Liobao waved his hand in embarrassment and said, "No, no, it's just a coincidence!"
Li Wenyu said seriously: "You really don't have to be modest. It's really a critical step for you to lend the scalpel in time this time. What you just said is still a little inaccurate. After every use of the scalpel,
It is indeed necessary to disinfect, in which case all traces will definitely be destroyed, but that is only for the handle, and the blade is a one-time consumable and will be discarded after use, so if you don’t have it this time
If we can bring this knife in time, I’m afraid we won’t be able to find any evidence of the wound on the gas pipe!”
After hearing this, Zhang Bao couldn't help but feel a little lucky. He really didn't know that the scalpel blade was a disposable item. At the same time, he couldn't help but feel a small sense of pride in his heart for the results he had achieved this time!
Li Wenyu sent Zhang Baoli home and promised to inform him of the investigation progress of the incident at any time, and then returned to the criminal police detachment.
When Zhang Bao Liang returned home, it was almost midnight. Did something unexpected happen to the old beggar at this time yesterday? He was lying on the bed. It was only then that Zhang Bao Bao calmed down and felt an unreal feeling.
It felt like he never thought that one day he would be involved with the police and the case!
Moreover, Zhang Lianyuan still has another headache now, and that is how to explain to Bai Jingwen that he had lied to her, and then "betrayed" her good friend with his own hands!
Although Qin Dada's whereabouts are unknown, almost all clues and evidence indicate that she is the biggest suspect who deliberately committed murder on the old beggar, and the person who discovered and exposed all this is Zhang Liangliang himself!
I don't know what Bai Jingwen will think of him, Zhang Liang thought with a wry smile.
Evidence...that's right! Scalpel!
Zhang Baoan sat up from the bed and suddenly remembered that he didn't bring back Director Bai's set of scalpels! Thinking of this, he quickly took out his cell phone and called Li Wenyu again.
As soon as Li Wenyu returned to the criminal police detachment, he received a call from Zhang Liang. After understanding the purpose of Zhang Liang's call, he said apologetically: "Baan, this is really embarrassing. Although it has not been classified as a criminal case yet, but
This set of scalpels is also used as one of the physical evidence, so it cannot be returned yet. We will keep it for a while to assist in the investigation."
Zhang Liang was dumbfounded when he heard this. He had promised to return it to Director Bai early tomorrow morning, and Director Bai had another surgery tomorrow. What should he do now that the scalpel is not back yet?
Li Wenyu seemed to be aware of Zhang Liang's dilemma. He said: "Let's do this. Tomorrow morning, I will go to the First Municipal Hospital in person to meet with your little girlfriend's father. I believe he will understand the need of the police to handle the case. Moreover,
The hospital should also have spare scalpels for emergency use, so his operation should not be delayed."
Zhang Liangliang really felt like he wanted to cry at this time. Director Bai was not optimistic about him in the first place, and now he wants to break his trust. This is really... what is this thing? There are gains and losses.
?But it seems like I’m not getting any benefits either!
There was no other way. At this point, Zhang Liang had no choice but to accept this reality. He couldn't rob a police station anymore and snatch the scalpel back. He had stabbed it himself, and even if he broke his tooth, he had to go to his stomach.
Swallowed!
Thinking of explaining to Bai Jingwen tomorrow why her good friend was sent to the police station by her boyfriend, and facing Director Bai's contemptuous and sharp gaze, Zhang Liangliang suddenly had a splitting headache. At this time, for the first time, he
I feel regretful about my persistence. Why do I have to swim in this muddy water?
Thinking of this, he turned over and fell on the bed, covered his head with a pillow, and let out a wailing sound that was not like a human voice.