In Conan, people have a brain option system

"From Nishihara's perspective, if we want to ensure that the police will not suspect him, we must do three things."

"One is to cut off the connection between the murder weapon and him."

"The second is to cut off the contact between the deceased and him."

"Third, there needs to be an alibi at the time when the deceased was killed as determined by the police."

Akikawa Kyousuke compared the rope in his hand with the strangulation marks on the deceased's neck.

It was determined that this rope was the murder weapon that caused the deceased in front of him to be strangled to death.

Because Akikawa Kongsuke concluded that Nishihara Koichi was not a temporary act,

Therefore, it is impossible for Koichi Nishihara to leave any flaws in the murder weapon.

The second is his connection to the deceased.

The relationship between this dead unfortunate guy and Nishihara Koichi is nothing more than two situations.

Either the relationship is very bad, or there is no contact at all.

In the former case, the police only need to investigate the interpersonal relationship of the deceased to suspect Nishihara Koichi.

So Akikawa Kyusuke prefers the latter.

As for the last point.

Akikawa Kosuke also made a judgment by observing the deceased——

That is, Nishihara Koichi wants to take advantage of this time on stage,

Let more than 1,800 spectators and staff present create a perfect alibi for him.

After identifying Nishihara Koichi's culprit method.

What he has to do next is to overthrow them one by one.

Then "package" it into a brand new gift and return it to Nishihara Koichi.

Akikawa Kongsuke discovered.

Rigor mortis did not appear on the deceased's body, and not even corpse spots appeared.

The Imperial Theater relies on central air conditioning to maintain a comfortable temperature at all times.

At this temperature, spots will appear on the body within half an hour to an hour.

Therefore, the time of death of the deceased must have been within half an hour.

Akikawa Kyusuke also found new swelling and cracks on the deceased's head.

In addition, despite being strangled, the deceased's fingers were not scratched.

Akikawa Kousuke therefore concluded that the deceased should also have suffered a heavy blow to the head and fell into coma.

Later, after Koichi Nishihara knocked himself unconscious, he was strangled to death with a hemp rope while in a coma.

"Nishihara came on stage in the fourth act, and I was called to the laundry room midway through the second act."

"Consider that Saihara starts meeting the crew on set halfway through the third act."

"That means that about half an hour from now, Nishihara will have an alibi."

"At this time, he would definitely make up any reason and send someone to the laundry room to find the deceased."

"On the flip side, I'm safe until he takes the stage."

In Akikawa's view, Nishihara Koichi's modus operandi was quite crude.

Except that the strangling marks were inconsistent with the attack posture arranged for himself.

Another point is that he is worried that he will not be able to wake up until he is discovered by the police after being beaten so hard.

Therefore, the intensity of attacking oneself is not well controlled.

This caused me to wake up very early,

This gives me enough time to do the next thing.

Akikawa Kyusuke took out the small bag that Itakura Misaki gave to him before.

This bag contains mouthwash, wipes and scripts.

Akikawa Kyousuke carefully wiped away the remaining hemp fibers from the strangulation mark on the deceased's neck with a wet wipe.

He also stuffed the hemp rope used as the murder weapon into his clothes.

As for why Akikawa Kyousuke wasn't worried about the blood on the hemp rope getting on his clothes.

That's because Akikawa Kyousuke's clothes were actually stained with the blood of the deceased when he woke up.

Needless to say, this is naturally the handiwork of Koichi Nishihara.

Clothes stained with the blood of the deceased are no different from murder weapons. The key is this student uniform, which only he can wear in the entire Imperial Theater.

Nishihara Koichi must have considered this from the beginning, so he deliberately let his clothes get stained with the blood of the deceased.

They had to deal with it together later anyway, so Akikawa Kyusuke didn't care about the bit of blood on the hemp rope.

Akikawa Kyousuke took out the script of the stage play from his bag again.

Using the pages of the script, the tips of the deceased's fingers were cut.

After doing this, Akikawa Kyusuke suddenly made additional discoveries while examining the inside of the deceased's mouth.

There was quite a lot of blood in the deceased's mouth.

Akikawa Kosuke tilted the deceased's head and poured out the blood from his mouth.

Then Akikawa Kyousuke discovered that there was a large wound on the deceased's tongue.

At the same time, the muscles inside the deceased's mouth still showed signs of contraction and spasm.

This shows that the deceased's tongue was injured while he was still alive.

After discerning this point.

Akikawa Kousuke held the deceased's head, raised his foot and kicked towards the corner of his mandible and body of his mandible.

Originally, Kyusuke Akikawa's strength was not enough to break the mandibular angle of an adult man.

Not to mention the mandibular body which is thicker than the mandibular angle.

But for Akikawa Kousuke, who has mastered professional fighting skills, it is not difficult to accurately kick someone's jaw angle with the help of his own hard-soled leather shoes.

When Akikawa Kyousuke attacked the mandibular body, he aimed at the depressed area in the center of the jaw bone.

This is a vulnerable area of ​​the mandibular body.

So it was easy to break the deceased's jaw.

In this way, the mouth of the deceased is basically separated from the body.

Akikawa Kousuke used the upper and lower gums of the deceased to break the deceased's tongue from the location of the tongue wound.

Then before the blood came out, he closed the deceased's mouth again.

also.

Akikawa Kyusuke also found two kinds of washing powder for sensitive skin and non-sensitive skin in the laundry room.

Afterwards, he took some laundry detergent for non-sensitive skin and put it into his bag.

Akikawa Kosuke then returned to the deceased and squeezed the crack in the deceased's head, causing blood to gush out.

And he stretched out his hand, letting the blood from the deceased's mouth that had flowed to the ground cover his palm.

So far.

The disposal of the deceased's body has been completed.

Akikawa Kyousuke walked to the switch of the central air conditioner set in the room, and turned off the central air conditioner that had been maintaining a comfortable temperature through a wet wipe.

Then he grabbed the door handle inside the laundry room with his hand stained with the blood of the deceased.

Open the laundry room door,

After Akikawa Kosuke confirmed that no one was here, he opened the door and walked out.

He didn't bother with the inside door handle, which had his bloody fingerprints on it.

But I wiped the door handle on the outside of the laundry room door with a wet wipe.

Akikawa Kyousuke just opened the laundry room door wide, and then came to the room next to the laundry room door where clothes, wigs and other props were stored.

After opening the door through his sleeves, he took out a long black wig.

Akikawa Kyousuke used his bloody hands to smear the blood of the deceased on it, and then stuffed it into his clothes.

Then Akikawa Kyousuke came to the nearby bathroom.

After confirming that no one was inside, he went to the toilet cubicle and closed the door.

He took off his clothes stained with the blood of the deceased and took out the wig and rope inside.

The rope chosen by Koichi Nishihara is a two-strand hemp rope that is lower in strength than nylon rope and lacks elasticity.

This traditional natural fiber rope is very absorbent.

But the strength will also weaken accordingly due to water absorption.

Akikawa Kyusuke kept the front end of the hemp rope and soaked the remaining part into the toilet water.

After taking it out again, you can feel that the weight of the hemp rope has obviously become heavier due to water absorption.

Then Kyusuke Akikawa used his fingertips to separate the two strands of the hemp rope that had not been soaked in water.

Then he bit one of them with his teeth, and pinched the other one with his fingers.

As Akikawa Kousuke's head and hands exerted force at the same time, the two strands of hemp rope were immediately separated.

The purpose of this step is to effectively reduce the size of the hemp rope and prevent it from clogging the toilet when it is flushed into the sewer.

After dealing with the two strands of rope used as the murder weapon.

Akikawa Kousuke took off his clothes again, soaked the clothes soaked in the blood of the deceased into the toilet water, and at the same time poured the washing powder he took from the laundry room into the toilet.

Now comes the most important step.

He needs to get rid of the remaining blood of the dead in his body.

Cold water can prevent proteins in the blood from coagulating, and laundry detergent for non-sensitive skin contains proteases that can break down proteins in the blood.

A few moments.

Akikawa Kyousuke cleaned the blood stains on his clothes by rubbing them.

But just doing this is not enough.

Because although protease can break down proteins in the blood, it has little effect on DNA.

To be foolproof, Akikawa Kongsuke needs to ensure that no DNA of the deceased can be detected on his body.

For this step, you need to use another tool——

3% or higher hydrogen peroxide solution.

In addition to special purchases,

Only some household disinfectants, oral rinses, whitening products, and contact lens solutions may contain hydrogen peroxide.

And these things are different from washing powder. They are not things that I can get everywhere in the theater at this moment.

but--

"I have to thank Miss Itakura."

Akikawa Kyusuke thought in his heart,

Then he lowered his head and looked at the mouthwash that the agent Miss Itakura Misaki had prepared for him lying quietly inside his bag.

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