Because the crime scene was large and in a public place, Karasawa and the others did not search as quickly as before.
After all, the place to watch the festival is a hill. Even though it is not high, it is much more troublesome than the usual crime scene.
And the large number of tourists has also made their investigation more difficult to a certain extent.
What's more, they didn't even have a specific search direction, so they could only use the stupidest method of "carpet search" to visit the tourists who registered that night one by one with photos.
See if the other party has an impression of the deceased and Imamura Hanako, in order to find possible useful information.
Even if the search headquarters they set up had enough people, they still spent the whole afternoon questioning everyone because of the huge base.
However, their hard work was not without reward. From two tourists, they obtained home videos taken near the crime scene.
This morning, Tang Ze and his party gathered together early to view these two videos.
"Then, I'll start letting go."
Naoki Kamei adjusted the machine and pressed the play button, and the first home video began to play.
First of all, there was a crowd of people nearby, and there were tourists chatting and laughing nearby.
Then the scene changed, and then the camera zoomed out again to focus on the mountains in the distance. It could be seen that the other party was adjusting the camera.
After that, the camera began to freeze, completely recording the ceremony session when the dark place of the mountains in the distance began to form the word "big".
After the word "big" was completely formed on the opposite mountain, the camera screen turned to her family again.
Everyone was laughing, taking photos and joking, looking very happy.
The video ends here, and there seems to be no useful information at all.
After coming back to their senses, everyone looked at each other in shock, and could even feel their morale shaken obviously.
"continue."
Just as everyone was talking about it, Tang Ze spoke without any fluctuation in his tone: "Next."
"Ah...oh oh oh..."
Uye Naoki was stunned for a moment, then quickly got up and went to change another video.
Compared to the video of the festival scenery recorded by the previous videographer, this videographer focused on his girlfriend.
Seeing this, everyone around them became excited and looked at the screen attentively.
Don't get me wrong, it's not because everyone is coveting the body of someone else's girlfriend, it's because this photoshoot was entirely done on the stairs.
Because he wanted to take photos of his girlfriend, the two of them were in tandem.
In this way, everything on the stairs can be photographed naturally and clearly.
But unfortunately, although the photo was taken of the corridor where the crime occurred, the deceased and Uye Naoki were not photographed until the end.
"It's also expected." Takagi looked at the somewhat depressed atmosphere and smiled and comforted: "After all, everyone comes out to have fun, and the photos are all home videos, so we won't focus on irrelevant people.
It’s also normal.”
"The video is hopeless. Where are the witnesses?" Officer Memu frowned and looked at the criminals and asked.
"There is nothing gained. After all, tourists are rushing up to watch the festival, and almost no one stops halfway up the mountain."
Sato Miwako shook her head and said helplessly: "Everyone rushed up, but ignored everything happening behind them."
This is also the reason why this case was initially considered an accident by Takagi and others. After all, it was a public place, and it was in a place with only up and down stairs.
As long as there are people in front and behind, even if the environment is dark, it is impossible not to notice these.
But then again, since the thing has happened, it actually means that there may not be any witnesses at the time.
After all, as long as there are people around, the murderer will have scruples, and this murder case may not be carried out.
"Okay, cheer up and continue to investigate the relationship network around the deceased to see who will have conflicts with the deceased!"
Officer Memu looked at the somewhat silent crowd and shouted: "As criminals, this kind of useless work is an essential part of our work.
All evidence is obtained through various useless efforts, don't forget this!!
Show off the momentum of a criminal investigation!!"
"Hi!!"
After Officer Memu said this, all the criminals cheered up and responded loudly and started taking action again.
On the side, Tang Ze took the video cassette and went to the forensic department after the crowd left.
"Senior, have you discovered anything?"
Seeing Karasawa going to the forensic department, Naoki Kamei couldn't help but get excited. He knew that Karasawa would not do useless work, so there must be some intention in doing so.
"Not really, but we missed something. I just checked again just in case."
Tang Ze smiled, then looked at Uncle Demi and said, "Uncle Demi, please extract the voices from these two tapes."
"No problem." As a result, Uncle Demi greeted the young people around him and started to get busy.
Seeing this, Naoki Kamei showed a look of surprise, and understood Karasawa's intention of playing the video again.
sound.
This is something that everyone is accustomed to, but compared to the picture of the video, the sound as an "accessory" is obviously easier to be ignored.
But compared to the picture of the video, the sound actually contains more information.
Because the picture is taken by the owner of the camera, but the sound is automatically collected by the machine and recorded within the range.
For them, who are looking for clues like "looking for a needle in a haystack", visual information can only collect detailed information in one direction at most, but sound can collect all-round information.
This is undoubtedly an important clue.
"Thanks for your hard work."
While waiting, Karasawa looked at the busy people and couldn't help but take out his wallet and hand a few bills to Uye Naoki: "Please go buy some drinks."
"Okay, no problem." Naoki Kamei took the money and started running errands, while Tang Ze and Uncle Demi started chatting.
"Thank you for the drinks, but I would rather expand the manpower quickly."
Uncle Demi looked at the busy subordinates around him and sighed helplessly: "We people are busy non-stop every day, and the workload is really too much.
All kinds of analysis are piled up in the forensic department. In fact, they could have been classified in more detail, but now they are forced to become generalists, and one person wears many hats."
"It's really hard work."
Looking at this moment, two or three groups of criminals have already come to submit evidence or obtain forensic reports. Tangze also feels that the forensics department is really working at full capacity.
"Didn't you report the situation of the forensic department to your superiors and ask them to recruit more people?"
Tang Ze suggested: "After all, you can be regarded as our logistics support. Without you, the efficiency of case handling will be reduced a lot."
This is not an exaggeration. After all, although it seems that the forensic personnel in movies and TV dramas are just soy sauce, in fact many cases require forensic personnel to work behind the scenes.
As for Tangze's suggestion, Uncle Demi also revealed some internal information to Tangze that has not yet been released.
That is, the forensic science department is likely to undergo major changes in the near future.
"It seems that Uncle Demi is also free."
After hearing the news, Tang Ze couldn't help but joked: "You have done such a big thing without knowing it. You have promoted system reform."
"It's not that exaggerated." Demi waved his hands and complained helplessly: "This is all because of being forced to work like a social beast.
If I don’t give a voice to the people below me, I will soon have no one under me.”
"Is that an exaggeration?"
Uye Naoki, who was returning with drinks, heard the conversation between the two and couldn't help but interrupt.
"It's so exaggerated."
Seeing him picking out a can of coffee from the bag, Uncle Demi opened it, took a sip and smiled: "But after I reported this matter, the superiors also attached great importance to this matter, and the opinions from the superiors were quickly reached.
Now that the bill to reform and expand enrollment has been put on the agenda, the results may be discussed soon."
Speaking of this, Uncle Demi also showed a relaxed smile: "I hope it will be easier by then."
"Oh? This is good news." Tang Ze joked with a smile: "But you may not be able to relax by then.
At least in the beginning, I need you to guide the new people to adapt to this job."
"Those are all trivial matters, and they will all be my helpers when the time comes." Demi said this and waved his hand nonchalantly.
After Karasawa selected the drinks, Naoki Kamei also divided the drinks he bought one by one.
As time goes by, the audio from the two tapes has begun to be extracted one by one.
After hearing the news of completion, Karasawa and Naoki Uyei went to a computer under the instructions of the forensic personnel, put on headphones, and began to listen carefully to the movements in the video.
After thinking about this, Naoki Kamei began to listen carefully to all the sounds in the video.
All kinds of chatter and laughter kept passing by his ears, but Tangze dismissed them one by one.
"goodbye..."
Suddenly, a slightly deep female voice sounded, and the tone was different from those heard before.
Compared with the relaxation in the previous conversation, this "goodbye" seemed a bit sad and relieved. It was a very complicated feeling, like saying goodbye to the other person again.
And after this sentence was the sound of clogs and footsteps "tapping" on the steps. It sounded like the owner of the voice said goodbye to the other party, turned away and continued to move forward.
"Senior, this voice..." Naoki Uyei looked at Karasawa with some surprise when he heard this.
"It sounds like Imamura Hanako's voice." Karasawa smiled and signaled Uei Naoki to be quiet, and then continued to listen.
After the sound of saying goodbye, the flow of people seemed to have drifted away, and the sounds of conversations were getting further and further away.
Just when the two thought the sound was about to end, suddenly there was a slight ringing sound from the camera.
Then, a slightly hoarse female voice suddenly sounded.
"goodbye..."
Compared with the previous farewell, this farewell made people's hair stand up unconsciously.
Although there was no basis for it, both Tang and Ze felt murderous intent from the words "goodbye".
After that, there was a sound of a slight heavy object touching the ground.
Although the recorded sound may have been very low because the owner of the camera moved upwards, Tang Ze could quickly sense that the muffled sound was caused by the deceased being pushed down the steps.
"Senior, this..."
After listening to it, Naoki Uye immediately took off his headphones and said in disbelief: "Could this be the sound of murder..."
"It should be right." Tang Ze nodded and said, "Although I'm not sure yet, at least that's what I feel."
"But why do I feel that the voice of the person behind me doesn't sound like Imamura Hanako?"
Uye Naoki frowned and said, "But if it's really not her, then Imamura Hanako is probably innocent.
After all, according to the sound, she said goodbye to the deceased and then continued walking upwards. The sound at that little distance should not be enough for him to return the same way and kill Tomio Tatsukawa."
After all, after the first "goodbye", the clogs gradually moved away very clearly. If you only count the times, you can feel that the other person has jogged many steps in one breath.
The interval between such a long distance and the subsequent "goodbye" sounds is really short.
"Let's conduct voiceprint comparison and identification first."
Tang Ze stared at the computer screen and said: "If the voiceprints don't match, it proves that the prisoner is someone else."
With an anxious mood, the two of them watched Uncle Demi perform some operations, and finally a message box "Inconsistent comparison" appeared on the computer screen.
"So Imamura Hanako is really innocent."
Upon seeing this, Uye Naoki couldn't help but frown and analyzed: "The voice is definitely female, plus Tomio Tatsukawa was killed just after meeting his ex-wife.
Does that mean we can judge that the prisoner is likely to have an emotional entanglement with the deceased..."
"That's a good reasoning, I think so too."
Karasawa patted the junior on the shoulder encouragingly and said with a smile: "Then let's follow this idea and investigate the women around Tomio Tatsukawa."
"Senior, I do have a candidate." Naoki Kamei hesitated for a moment and said uncertainly: "I just don't know if it's right..."
"Kyojima Junna, an employee at Tomio Takawa Pet Shop?" Before Naoki Kamei could speak, Karasawa was the first to express his judgment.
"Eh? So you think so too, senior?"
Uye Naoki suddenly understood that this might be the training given to him by Karasawa, and he breathed a sigh of relief like a student walking out of the classroom after an exam, "If that's the case, then I'll be relieved."
Thanks to the extensive searches conducted by other criminals, the relationship network around the deceased was clearly investigated.
This is also the reason why the two people immediately decided to exclude the first suspect after collecting so many clues.
The reason for choosing the other party is actually very simple, because the information shows that she is single, and she also spends time with Tomio Tatsukawa every day, so she naturally has a greater chance of falling in love with him.
With a mentality of seeking confirmation, the two people left the Metropolitan Police Department and headed towards Tomio Takawa's pet shop.
They are going to confront the criminal suspect, Junna Kyojima!
This chapter has been completed!