In Conan, people have a brain option system

"Come to think of it, Officer Chiba has also seen that Akikawa brother before."

Detective Chiba Kazunobu heard Conan's words and looked at Akikawa Sosuke who was at the innermost part of the house.

Then he showed a surprised expression on his face.

"Isn't this Akikawa Sosuke, the victim of the previous national highway accident?"

"If it is him, according to his experience, it is indeed impossible for him to be in the situation that Miss Sera just said."

In order to protect Akikawa Sosuke's privacy, Chiba Kazunobu did not tell the previous things to her face.

However, the words of the Chief of Patrol of the Metropolitan Police Department are convincing enough.

"About the evidence at the scene that I just said."

"Everyone, please look--"

Sera Masumi said, and came to the door of the laundry room.

There is a very obvious bloody palm print on the door handle here.

"Inspector Megure, can you ask the police officers of the forensic department to investigate the fingerprints on both sides of the door?"

Inspector Megure nodded, then looked at a detective behind him and gently raised his fat chin.

The detective from the Identification Division understood.

He put on white gloves, took out the powder for detecting fingerprints with the powder development method, and the luminol reagent for revealing bloodstains, and walked to the door.

After a while.

The detective from the Identification Division said:

"Although there is a palm print on the inner door handle, no fingerprints were found."

"In addition, it is probably because the force when grabbing the door handle was too strong, the bloodstains covered the palm prints, and no obvious palm prints were left."

"And the outer door handle was wiped, and no fingerprints were extracted either, and there was no reaction to the luminol reagent."

The detective's answer made Maori Kogoro, Chiba Kazunobu and others show regretful expressions.

However, Conan and Sera Masumi's expressions did not change.

"Excuse me, are there any traces of smearing on the palm prints on the inside of the door handle?"

"No, the palm prints are not blurred. It should have been scratched only once. There are no traces of multiple scratches or deliberate smearing."

"Sure enough, as expected."

Sera Masumi said, and looked at the cleaner who was the first to discover the crime scene.

"You just said that when you found the body, you found the door of the laundry room was open, right?"

"Yes."

The cleaner nodded.

"I was too scared at the time, so I didn't dare to go in."

"So what do you want to say?"

Mouri Kogoro was a little impatient and hurriedly urged.

But his urging was met with a cold eye from Megure Jusan.

"You are a famous detective, and you are compared with a child of the same age as your daughter. Don't you feel ashamed?"

"I'm doing this to give newcomers a chance to perform."

Mouri Kogoro said embarrassedly.

"The outer door handle was not stained with blood, but it was wiped."

"But the inner door handle had obvious blood stains, but it was not wiped."

"That means the murderer had the leeway to deal with the traces when he first entered the laundry room."

"He may have touched the door handle directly with his hand, or the victim may have touched the outer door handle."

"In either case, he must have made the decision to kill in advance, and in order to leave no evidence, he wiped the traces on the door handle when entering the door."

"In other words, this was not a spur-of-the-moment decision, but a premeditated murder."

Sera Masumi narrowed her unique dark green eyes.

"And according to the first eyewitness, she could see the body directly from outside the door."

"In this case, wouldn't it be unreasonable not to lock the door?"

"The body must be discovered as late as possible, but he still didn't close the door, so there is only one possibility-"

"Something unexpected happened at that time, causing the murderer to flee the scene in a hurry."

"At the same time, the bloody palm print on the inner door handle also proves this point."

"There is obviously no blood on the outer door handle, but it was wiped by the murderer."

"And there is an obvious bloody palm print on the inner door handle, but it was not wiped."

"This can only mean that the murderer was already quite panicked when he left, and he didn't care about dealing with the palm print at all."

Listening to Sera Masumi's reasoning, the people around him also suddenly realized.

"So that's how it is. No wonder Miss Sera just asked whether the palm print on the inner door handle had been smeared."

"The outer door handle was not stained with blood, but the murderer still wiped the door handle, which shows that the murderer is a very cautious person."

"The inner door handle was grabbed once by his bloody hand, but he did not deal with the palm print on the inner door handle, which can only mean that the murderer was panicked at the time!"

Chiba Kazunobu finally understood. He looked at Sera Masumi and felt extremely admired in his heart.

The high school detective in front of him.

But before the detective in the forensic department verified the palm prints and fingerprints, they had already deduced all this!

"Let's go back to the original topic. By observing the wounds on the head of the deceased and Akikawa, we can see that Akikawa's wound is much newer than the wound of the deceased."

"In this way, the reason why the murderer fled the scene in a hurry is clear."

"That is-after he killed the deceased, he was accidentally witnessed by Akikawa."

"So he hit Akikawa with the weapon in a panic, and fled the scene without confirming whether he had killed Akikawa."

"This indirectly reflects that the force he used to hit Akikawa at that time should also be the force he thought could kill Akikawa."

"In such a pressing situation, he absolutely had no way to properly deal with the weapon, and the murderer must still be in the theater."

"As long as we find the weapon and then check one by one the people who have no alibi during the period of the deceased's death, we can identify the murderer."

Sera Masumi's words gave everyone present great confidence in an instant.

Everyone cast admiring eyes at Sera Masumi.

Compared with him, the great detective "Sleeping Kogoro" on the side seemed a little eclipsed.

——

"You are worthy of being a detective, you are really smart."

In the laundry room, Akikawa Sosuke listened to Sera Masumi's reasoning and couldn't help but sigh in his heart.

For Akikawa Sosuke.

Smart people are much easier to control than fools.

Because there is no need to worry that the other party will deviate from the prediction.

As long as you give the test questions, the other party will definitely be able to give the only correct answer.

This is true for Conan, and this Sera Masumi is also true.

Akikawa Sosuke knows that he is definitely not smart in this world where detectives are the protagonists.

That is why he can calmly use his disadvantages and the detectives' confidence in their reasoning ability to accurately manipulate the thinking of smart people.

"Compared to what I said in person, what they reasoned out themselves must be more convincing."

Akikawa Sosuke whispered in his heart, and at the same time he knew that the time had come.

"I know that Mr. Nishihara, you have covered up all the elements of your crime."

"Then now, I will ask the detectives to disassemble the new motive, murder weapon, and alibi that I carefully prepared for Mr. Nishihara."

"Ahem."

Akikawa Sosuke coughed in pain.

Successfully attracted the attention of everyone in the room.

Elements of crime:

Motive: refers to the reason or motive for the suspect to commit a crime, revealing why the suspect committed the act.

Weapon: refers to the tool or weapon used to commit a crime.

Alibi: refers to the attempt to prove the suspect's innocence by saying that he was not at the crime scene when the crime occurred.