However, no matter what Conan thinks, things can't be changed after they are settled, let alone Xingshi will not change them.

In the next few days, under the surveillance of the crow, he had no action except when Tian Shang went to see Yukawa at the beginning.

That time he confirmed that Yukawa did not help the police, and he became so arrogant that he directly confessed his ambition to develop weapons in the future.

Even so, he opened his mouth and shut up to create a tornado, causing an earthquake, etc. As a result, Yukawa, who was originally not interested in the case, took the initiative to contact the Inland Sea and checked the deceased's necrotic skin.

Finally, I thought that this is the external energy of the human body that causes the skin to be necrotic while causing heart paralysis, which means that this is a killing.

The Inland Sea, which had been searching for nothing but decided to close the case by accident, continued to persist, and searched for similar cases in Tokyo for a year.

Finally, the killing method was determined, and even found the foreign website used to advertise on the field.

"Ultrasound?"

Dr. Agasa's house came to help clean up Xingshi. Unintentionally, he found a cover from a bunch of scientific magazines with the cover of Tian Shang.

I opened it curiously and found that what was published was Tian Shang’s paper on ultrasonics.

"This is the one who you think is the murderer. I remember his paper, as a university researcher, is pretty good...ah, wait."

Dr. Agasa passed by Xingshi, glanced at the magazine in his hand, and commented on the papers of Tianshao, but when he was halfway through, he suddenly muttered to himself that something had happened.

"Ultrasound, cardiac paralysis, skin necrosis, drowning, in the water...so that's it, I understand."

Hearing Dr. Agasa's words, Xingshi scratched his head in a daze. He didn't know what the doctor understood, but seeing his current state of enlightenment, he knew that he could not ask, so he had to turn his head and look at Conan, hoping that he could explain it.

However, Conan's current expression is no different from Xingshi. No, it should be said that he is even more confused than Xingshi.

Because he had a feeling that he shouldn't be like this. On the contrary, the doctor seemed to have a light bulb on his head at this moment, so he should be the real him.

Fortunately, the doctor is not like him, and he has to explain it bit by bit, from shallow to deep, and tiringly.

After finishing his epiphany, seeing Xingshi and the others' confused eyes, the doctor said happily, what did he understand?

"In other words, Tian Shang used ultrasound transmission in the water to kill people."

After listening to the doctor's explanation, Xingshi made a summary.

"Including necrotic skin, is it also because of ultrasound?"

"That's right."

Dr. Agasa nodded, took the magazine in Xingshi's hand, and reached out to click on the paper on Tian.

"The principles are all in this paper, but... Sure enough, this person's limit is just like that. Being a researcher is almost over."

After looking at the release time of the paper, Dr. Agasa sighed:

"It took five years to make this semi-finished product. If it were me, it would not cause the skin to be necrotic. That would be a silent method."

[Haha, should I say thank you for being grateful that you are not interested in researching weapons, and just want to make toys?]

Xingshi turned his head and looked at it. In the carton that Xiao Ai was holding, there were a bunch of mantis models scattered, pulling the corners of his mouth.

However, no matter how much I complained, I finally knew the killing method of Tian Shang, and Xingshi was still very happy.

Thinking of the Inland Sea Police Officer who was arranged as bait by him but did not know it, Xingshi was about to ask the doctor if there was a way to make a relative prop.

However, before he could ask, the crow arranged in the field research room sent a signal of something.

When the perspective was changed, Xingshi saw the inner sea leaving the laboratory, holding something in his hand and a smile of expectation on his face.

His eyes focused on Inner Sea's hands, Xingshi saw clearly what she was holding.

[The reception voucher for Rosellini Hotel is up to today. It seems that Tian Shang is planning to take action. Even if the doctor can really do it, it is too late now.]

Xingshi knew about the research room on the Inner Sea and went to the field. He didn't see her holding the reception voucher, and there was no such anticipation on her face. Obviously, this reception voucher was given to her by the field.

Inui Hai didn't expect that she had just because Yukawa confirmed that this was a murder case, and came over to ask Tianshao's opinion, and she had such an extra benefit.

She knew how luxurious the Rosellini Hotel was. With her salary, she enjoyed the items on the reception voucher. It was not considered a heavy bleeding, but it would hurt for a while.

Now she got a free reception voucher. Even though the case has not made much progress, after looking at the date above, she also planned to forget the case for the time being and relax.

Thinking of this, the footsteps of the Inland Sea became lighter, as if they really had forgotten all their worries.

By following her crow, Xingshi also saw this scene and couldn't help feeling a little guilty.

[If she knew that what she was looking forward to was just a part of what others had arranged to plan to kill her, she would probably not be happy.]

Xingshi clenched his fists and decided to do everything as much as possible without disturbing her.

[The murder method on the field must be in the water. If you choose a hotel, you should only be in the bathtub of the room.]

Although there are also swimming pools and large bathrooms in the hotel, it is impossible for the field to be booked. It is confirmed that there is only one person in the Inner Sea, so Xingshi determined the location where he took action.

[If the bathtub is so small, he must get close to him if he wants to do something. After all, the target is a female policewoman. It is impossible to just watch him approach, and he may not dare to get close, so there should be sleeping pills.]

Considering the habit of taking a bath in Neon people, Xingshi determined the time for the field to take action and the most likely method to use, control the amount of medicine and wait until the bath is taken before taking it.

Although Xingshi had already guessed Tian Shang’s plan, he still had a doubt.

[Aren't you going to let me take the blame? This method has no room for me to intervene.]

However, the reason why Tianshao was so anxious was that he did it himself, so that Yukawa, who was not interested, also began to assist in the investigation. So he was so anxious that Xingshi could guess his plan at once.

However, he did not forget to let Xingshi attract the attention of the police for him.

"You remember, after killing the policewoman, call the person over."

Tian Shang took the phone number of Xingshi that he asked, handed it to the killer he found, and ordered.
Chapter completed!