Detectives of Detective World

Chapter 1712 Disorderly Serial Murder Case (3)

"Is it the cypress leaf found in Kuji's toolbox!?"

Koshizui Nanatsuki's eyes lit up when he saw this, and he immediately smiled and said: "Sure enough, the saying "live a hundred times" is correct.

Even if we had been here before, we had not seen the cypress leaves in Kuji's toolbox, so in our eyes, it was just an ordinary thing that was not worthy of attention.

But now, it's become the key to our investigation. "

"Stop being emotional." Karasawa smiled when he heard Koshimi Nanatsuki's words and said, "Call over the scientific investigators and the forensic examiners who came with Kuji to collect evidence before."

"OK." Koshizui Nanatsuki responded, then took out his cell phone and started calling people.

When the boss called, the forensic examiners were naturally very efficient and soon drove downstairs.

"We did park the forensic vehicle nearby at that time." After the female forensic officer came here, she recalled and answered Tang Ze's question.

"That's true"

Tang Ze nodded, and then asked again: "Speaking of which, when you moved the forensic tools to the crime scene, did you move them in multiple stages?"

"That's right." The female forensic examiner nodded.

"What about the key cotton swabs?" Tang Ze asked: "How many times did you carry it?"

"Large tools are usually moved first." The female forensics officer hesitated and said.

"Senior, do you suspect that someone took advantage of the opportunity when there was no one in the car to replace the cotton swabs in Jiuji's tool box?"

Koshimi Nanatsuki reacted and said excitedly: "The cypress leaves were left by the prisoners. This is indeed a new direction."

If the prisoner was made up by Hisashi Uyei who made a mistake, it is entirely possible that it was someone else, Hisashi Uyei, who used this to construct a non-existent prisoner.

Just because the prisoner does not exist, anyone can make it up.

They had previously confirmed that the DNA contamination was that of Hisashi Uyei, so they subconsciously regarded him as the culprit of everything, without thinking of other possibilities.

They all made subjective mistakes and did not consider other possibilities objectively!

But now, Karasawa suddenly proposed a new search direction, which naturally gave Koshimizu Nanatsuki a feeling of "a village with dark flowers and bright flowers".

Only then did she realize that during the previous investigation, everyone had fallen into inertial thinking.

This is normal. After all, when a murder occurs normally, everyone's first reaction is to find the murderer.

With this kind of thinking, after a long investigation, it turned out that it was an error. Naturally, one would think that one of the people who made the mistake was the one who made the mistake, and would not consider other possibilities.

But Tang Ze has a broader vision, and at the same time he doesn't believe that cases involving people around him will have such an outcome.

So after going to the three crime sites for the first time and finding no clues using his super-smell sense, he began to consider other possibilities.

And with the cypress leaves in Kamei's toolbox, they seem to be making some progress in a new direction.

As for the next step, we will continue to explore the situation, and further searches will confirm that someone has indeed exchanged cotton swabs.

Of course, it may not be found, which would prove that everything was really a major mistake caused by Kushi Kamei's fever.

"I do have that suspicion."

Hearing Koshizui Nanatsuki's words, Karasawa nodded and said: "The cotton swabs used for collection are hot-pressed sealed bags one by one.

But it is completely possible to open it after it is contaminated with Kushi's cells and use it to heat-press and seal it again. "

"Then who would do such a thing?" Koshizui Nanatsuki frowned upon hearing this.

"At this moment, we can only think that it was someone who was around the crime scene at the time."

Tang Ze's face became a little more serious when he said this: "And the first thing I thought of was criminal and forensic personnel."

Seeing the sudden serious expressions on the two people's faces, Tangze knew that what he said was a bit serious, and quickly added: "Of course, it is entirely possible that there are onlookers, and further investigation is needed."

"Then what should we investigate next?" Koshimizu Nanatsuki asked.

"Let's check the footprints first." Tang Ze thought for a moment, then looked at the female forensic examiner on the side and said, "Qingyu Sang, you and your colleagues will collect the footprints around here."

"Understood!" The female forensic examiner nodded and immediately went to work with her colleagues.

After collecting the footprints, everyone went to the river bank of Mihua Town, which was the scene of the second crime.

The second deceased was a homeless man who built a shed by the river under the bridge.

According to Koshimi Nanatsuki, at first everyone suspected that he died of illness.

But later it was discovered that there were signs of collision on the body of the deceased, plus the broken bottle, so they suspected that the deceased might have been beaten, so they called the forensic department.

During subsequent visits by Takagi Criminal and others, they also learned from other homeless people that the injuries on the other homeless person were caused by knocking over a shelf while recycling empty bottles.

Later, DNA was found in the empty bottle of offal, and this information was ignored. However, after Hisashi Uyei's DNA was detected, clues were put forward again, which once again proved that the death was accidental.

As for the cigarette butt, it fell into the grass next to the road 10 meters away from the homeless shelter.

The footprints here are more messy. After all, it is by the river, and many people come here to take a walk.

However, Qingyu still collected some footprints with his master.

Afterwards, Karasawa and others came to the Nakano District of Yoneka Town.

Next to the overpass five minutes away from Sanchuan Station was the third deceased.

Ichiro Nishihara is getting older, and the other person’s family said that he has some cognitive impairment recently, and sometimes sneaks out alone at night, and they are worried about his safety.

When they found him, he was on the lower half of the overpass stairs. At that time, it was thought that he slipped and fell on his head, causing his death.

However, because the position where he fell to the ground was a bit strange, not directly under the stairs, but a few meters to the side, he called the forensic department.

"If you fall from the stairs, you usually fall under the stairs."

Koshizui Nanatsuki said: "But it is possible that the deceased did not die directly. Instead, he covered his head and stood up, then staggered a few steps before falling to the ground and dying."

"Well, this kind of ambiguous situation really requires the forensic department to come and collect evidence just in case."

After hearing Koshizui Nanatsuki's words, Karasawa also knew that there was nothing wrong with this process.

As for the cigarette butt, it was on the edge of the road opposite where the body fell. It doesn’t matter whether this location counts as a cigarette butt or not.

As usual, Tangze continued to ask Qingyu forensics to detect the footprints where the cigarette butts were found.

Although Qingyu is a novice, she is accompanied by her master.

Although he is not as honored as "Outstanding Forensic Expert" like Shoji Okawahara, he is still a veteran forensic expert.

He quickly came to a judgment based on experience.

Although we still have to wait for the identification results of the instrument, the footprints detected near the three cigarette butts should belong to the same person.

"This is a breakthrough!"

Koshizui Nanatsuki's eyes lit up and he said: "Because it was far away from the crime scene, the forensic examiner only collected the more obvious cigarette butts and not the footprints."

"At this distance, being able to collect cigarette butts is already in compliance with evidence collection standards. We can't be too demanding." Tang Ze shook his head.

"That's right." Koshizui Nanatsuki nodded in agreement upon hearing this.

To be honest, this distance is already outside the cordon, and it is already some distance away from the crime scene.

The crowd of onlookers was almost standing at this location. It was hard to say whether it was the scene of the crime or not.

The fact that the forensic examiners were able to recover the cigarette butts is enough to illustrate their rigor.

After the preliminary judgment, the footprint information was soon brought back to Kesouyan for formal identification.

It was finally confirmed that the three footprints belonged to the same person.

"There is a bright future."

After getting the exact news, Koshizui Nanatsuki smiled and said: "I need to inform Uiji Kuji of this good news as soon as possible.

After all, two cases can be said to be coincidences, but three times can no longer be said to be coincidences. "

"Just wait a little longer."

Tangze said: "If you have just given hope and the result is not ideal, it will only cause a second blow."

"Well, that makes sense." Koshizui Nanatsuki nodded when he heard this and put down the phone in his hand.

The car soon arrived at the scene of the fourth crime.

Here is the fourth case not reported in the news.

When Tang Ze arrived here, an forensic vehicle was parked on the road next to the lawn outside the building.

"I heard from Qingyu that a new clue was found?"

After Okawara Shoji saw the two people getting out of the car, he ran over and asked.

"Yes." Koshizui Nanatsuki said with a smile, "But why are Okawara-senpai, Aoba and the others coming here?"

"Didn't you ask them to identify the footprints before? When I learned that you were coming to the scene of the fourth crime, I was afraid that if you waited too long, I would let them do the identification with peace of mind, so I brought people from our class to come here on their behalf. "

Okawara Shoji said with a smile: "I am also on site for the on-site investigation of this case, so if you need any help, please ask."

"Then let's go in first."

Tang Ze said: "I would also like to trouble you to introduce the situation of the case."

"OK."

Okawara Shoji nodded, and after asking his men to wait in the car, he took the lead in leading everyone into the abandoned building.

The whole place was dark, with all kinds of burned debris piled up. Okawara Shoji led everyone in, and at the same time introduced the situation of the case to everyone.

The deceased was the operator here, Yoji Fujita.

The origin of the fire was the boiler.

Okawara Shoji pointed at the burned black boiler and said.

"Looking at the circumstances in the file, this case seems to be an accidental fire, right?" Koshimizu Nanatsuki recalled: "Why do we need to collect DNA?"

"The main thing is that we found a steel pipe stained with the blood of the deceased dropped near the boiler."

Shoji Okawahara pointed to an area sign with a "D" on it, indicating that that was where the steel pipe was found.

"In addition, the deceased's hands and feet were injured."

Okawara Shoji continued: “Of course, it is possible that the injury was caused when the accident occurred.

In addition, according to investigation reports, nearby residents heard explosions.

Then the police were called. "

"Was this door closed when the crime occurred?"

While listening to Okawara Shoji, Karasawa looked around, came to the window and asked.

"It's closed. It's winter after all." Okawara Shoji nodded and asked, "What's wrong?"

"I thought maybe the explosion was from having this window open."

Karasawa's words stunned Koshizui Nanatsuki, and then he couldn't help but ask: "Senior, what do you mean by this?"

"In a sealed state, if oxygen suddenly enters the incomplete combustion space, an explosive combustion scene will occur."

Tang Ze stretched out his hand to look at the window and said: "This kind of scene is called a "backlash scene."

It is common for people to open windows and cause tragedy because they want to remove the smoke inside. "

As Karasawa spoke, he came to the stove again: "But the window is closed, so there must be other reasons for the explosion."

"In other words, someone injured Fujita Yoji and then disguised it as an accident." Koshimizu Nanatsuki pondered.

"But the results of the on-site test only detected Yonezawa's DNA."

Shoji Okawahara sighed: "It was later determined that the accident was caused by a gas leak."

"learn."

Tangze nodded, then looked at Okawara Shoji and said, "Let's go downstairs and have a look."

After everyone went downstairs, they came to the lawn of the burned building. Karasawa looked at Okawahara Shoji and asked, "I want to ask, is the forensic vehicle parked near here?"

"That's right."

Okawara Shoji nodded and said: "But it was not just forensics at that time, because of the fire, ambulances and medical staff were also walking around."

"It's not that easy to remove the cotton swab in this situation," Koshimizu Nanatsuki judged after hearing Okawahara Shoji's words.

"Anyway, let's investigate first." Karasawa looked at Okawahara Shoji and said, "I'll leave it to you."

"Understood." Okawara Shoji nodded, and immediately walked towards the forensic vehicle, calling his men to bring the toolbox to start collecting evidence.

Knowing that the main purpose is to check for footprints, Qingyu also reminded them to bring tools for identifying footprints in the car before coming.

After some testing, all the footprints were extracted. Find Shuyuan www.zhaoshuyuan.com

However, after comparison, it was found that no shoe prints consistent with the previous three cases were found this time.

In addition, Qingyu's team also sent the shoe print investigation results of the first three cases.

The shoes with that shoe print are of popular style. A total of more than 50,000 pairs have been sold nationwide. They are very ordinary shoes and there is no possibility of further tracing.

"Perhaps like cigarette butts, it is a very simple accident." Okawahara Shoji said after learning the news.

"maybe."

Karasawa nodded and called to Nanatsuki Koshizui, "Let's walk around here."

"Okay." Koshimizu Nanatsuki also wanted to communicate with Karasawa, so the two left the forensic vehicle and strolled casually on the lawn.

"Senior, what do you think of this case?"

After walking a few steps, Koshimi Nanatsuki couldn't help but speak first: "There are no shoe prints, and I can't find cigarette butts.

Do you think we have invented a non-existent murderer? "