I teach kendo in Tokyo

Kazuma asked the forensic examiner: "Can you check what this liquid is?"

"If you think this is key evidence, you can make a request and we will take samples for testing."

Kazuma: "Okay, let's take some samples before this is done."

"Understood." The forensic examiner immediately turned around and took out absorbent paper from the evidence collection tool box and began to absorb the water on the ground.

Kazuma asked again: "Can we see the scene photos of the deceased people now?"

"Now? Even if the secret investigation is quick, it will be washed out at night."

Asano exclaimed: "Didn't you take the photo with a Polaroid?"

"The resolution of the Polaroid is not high enough. How can I use the Polaroid to take photos of the scene?"

Kazuma: "So now we can't see photos of the scene? Then how can I find clues on the body?"

The forensic examiner gave Kazuma the writing pad he was holding: "Here, let's imagine it based on the written description."

Kazuma frowned, and then Detective Ida said, "I saw the scene and can explain it to you."

Kazuma: "Then tell me, what is the posture of the owner of the house lying here?"

"He was lying sideways on the ground like this." Detective Jutian gestured directly with his hands, "The wound was on the side, and it just broke the main artery, so the blood flow was so exaggerated."

Kazuma: "So this mark was caused by the owner lying here?"

"Yes, the head is in this position. The owner's son is lying here, also on his side, and then the mother is in this position. The midlines of the three bodies just form a triangle."

Kazuma: "Is it also sideways?"

"Yes."

At this time, Asano suddenly touched the back of his head and said, "The blood of three people has been gathered together. It should be able to keep them company on the road to hell."

Kazuma: "Definitely."

Asano looked at Kazuma: "We must definitely catch the murderer and comfort the deceased."

"That's natural, why did you suddenly say this?" Kazuma looked puzzled, "Do you have any relatives who were killed and the case has not been solved?"

"No. I just suddenly felt emotional, what?"

"Instead of lamenting these things, it's better to see what noteworthy details there are at the scene." Kazuma said, patting Asano's head with his knife, "I'll go check out other rooms."

Detective Juda said, "If there's nothing else, I'm going to search for the missing murder weapon with my partner."

Kazuma: "Wait a minute, what does the murder weapon look like?"

"Looking at the shape of the wound, it looks a bit like a bayonet."

"Bayonet?" Kazuma frowned, "This murder weapon is a bit surprising."

"The team should be familiar with it. The Fuqing gang's thugs like to use an exotic military spur with a bleeding slot. But this time, this wound doesn't seem to have a bleeding slot. Then I'm leaving."

"Come on, search for the murder weapon." Kazuma waved, then left the living room at the murder scene and walked to the bedroom.

There was a bookcase in the bedroom, and Kazuma looked through the books on the bookcase curiously.

"Edogawa Ranpo...this guy is actually a mystery fan..."

He Ma was speechless.

The readership of mystery novels in Japan is very large, so large that mystery novelists can become national best-selling authors.

It is precisely because Japan has such a large group of fans of mystery novels that it can support the original mystery publishing market.

Traditional reasoning very much rejects the use of textual narratives to interfere with readers' understanding of the case. Many traditional reasoning works are like puzzles given by writers to readers. People who are not interested in puzzles will find them boring.

The Japanese mystery writers that Kazuma likes, such as Higashino Keigo, are not original mystery writers, and they all like to play with narrative.

But judging from the books on the bookshelf, the owner of the house is a fan of Benguet's mystery novels. He has bought many of Benguet's works, and seems to subscribe to Benguet's mystery magazines.

Many of the works published in these mystery magazines are like puzzles for the magazine's audience, and they even publish letters from readers analyzing the case.

Kazuma was flipping through a magazine when a police uniform patrolman came over and announced: "The editor of The Resident in Room 101 has arrived."

Kazuma: "Eh? Do you want me to see this editor?"

The word "otherwise" was written on the patrolman's face, and Kazuma could only nod: "Okay, I'll come. Where are they?"

"It's upstairs in room 101."

"Okay, I'll be up right away."

Kazuma said, waving to Asano who was looking through the cosmetics of the hostess in the room: "Let's go."

"This hostess uses very young cosmetics." Asano said to Kazuma, "Just looking at the cosmetics collection on the dressing table, I would have thought she was a high school girl."

Kazuma: "Can you tell?"

"Yes, some cosmetics are basically marketed to young girls. For example, this lipstick is advertised as 'meeting your first love'. A housewife with a child of ten years old is wearing the lipstick of meeting her first love. No matter how you think about it, there is nothing wrong."

Kazuma: "Are you familiar with cosmetics?"

"You're familiar. I'm a handsome guy." Asano proudly declared, "Whether you are using it yourself or giving it to a girl, knowledge about cosmetics is essential."

At this moment, Kazuma wanted to order Asano to shave his head. He just couldn't stand it when a handsome guy boasted about himself.

Kazuma: "How many girls do you have on your hands?"

"Not many. I am more dedicated. There are only three now."

Kazuma smiled slightly: "Huh, not as much as me."

In fact, there are more Asanos. After all, Kazuma has only sung Tamamo until now.

But I can't stand Hanabusa Takashi, so he keeps spreading rumors all day long.

Asano complained: "It's too much, it's too much! The police department is asking you to challenge me in the field that I am good at!"

"Shut up and follow."

Hema said this, strode out of the door, and greeted the forensic examiner who was still collecting evidence as he passed the living room: "I'll go up and listen to the testimony in Room 101."

"Thank you for your hard work," the forensic examiner said loudly.

Kazuma walked out of the gate, turned to the side, and then went up the stairs made of welded iron plates.

Asano was stunned: "This ladder actually doesn't have a rain shield. It will be very inconvenient during the rainy season."

Kazuma: "Renting a house in Shinjuku for 50,000 yen a month is enough."

Shinjuku is the center of Tokyo. Although the Plaza Agreement has not yet been signed, land prices are already very high - even more so after the Plaza Agreement is signed.

I can't complain at all about renting a 1LDK apartment in Shinjuku for 50,000 yen a month.

He Ma climbed the stairs all the way, and the dilapidated iron stairs made a shrill scream.

"Isn't this ladder too long?" Asano exclaimed, "Fortunately, I'm lighter. The police department makes it hard to breathe under your weight. It's time for you to lose weight."

"I am a martial arts practitioner, and a heavy chassis is conducive to stability." He Ma said.

As soon as we arrived on the second floor, the door of room 102 opened, and the resident shouted angrily: "Who is it? Can't you be gentler?"

Kazuma quickly took out his police badge.

The resident of 102 was embarrassed: "Uh... Detective Sang, that's not right, it wasn't you just now."

"Search Section 1 Kiryu and Ma Police Department, this is my partner Asano. Are you a resident of 102?"

Kazuma glanced at the sign at the door of 102, which said "Xicheng".

Mr. Xicheng said angrily: "You know it just by looking at it? How could I come out of the room if I'm not a guest?"

Kazuma arrived at the door of 102, took a look inside, and found that the room was in a mess, and there was a bucket in the center of the room.

And the room smelled like air freshener.

Kazuma: "You reported the roof leak to your landlord, right?"

"Yeah, can you tell just by looking at it? I always keep two buckets, one in the living room to collect water, and one for daily use. If there is a heavy rain, typhoon, and storm, both buckets may be used."

"After you reported for repairs, the landlord didn't say when it would be repaired?"

"He said, 'In a few days,' and it always took a few days. I think he just felt that he didn't have to worry about renting this shabby house, and he didn't want to repair it at all!" Mr. Xicheng said fiercely.

"So you have a personal conflict with him." He Ma said.

"I have an alibi last night. I arrived at the bar at ten o'clock, and drank all the way until four o'clock in the morning. The bartender and the guests at the bar can testify for me! After the bar closed, I went directly to my workplace to deliver the newspaper. My co-workers can also vouch for me!”

Kazuma nodded: "Understood."

Mr. Saijo stared at Kazuma for a few seconds, snorted, and closed the door with a wave of his hand.

Asano frowned and said: "I don't like this guy. I feel like he is provoking us. 'You can't solve the puzzle I created, you stupid policeman.'"

Kazuma: "He's bald."

"ha?"

"Have you noticed? There is a layer of nylon at the root of his hair. It is obviously a wig."

"Holy shit, you noticed this? That's amazing!"

"Let's go to 101." Kazuma said.

The person who opened the door for Kazuma in Room 101 pointed at the people in the room when he saw the police badge and said: "My editor is here! Ask him where I wrote yesterday! I really wrote the manuscript all night. !”

The people in the room stood up, bowed to Kazuma, and then handed over their business cards: "I am the editor of Fuji Shobo, and I have been here every day lately to urge the teacher on his manuscripts."

Kazuma: "What time did you leave here yesterday?"

"I took the last tram home yesterday."

"Oh, it was very late. Did you hear anything at that time? For example, the sound of the air conditioner running."

Kazuma asked.

Some people in Japan believe that fighting the heat with determination and perseverance is good for the body, so even if there is an air conditioner at home, they will not turn it on until they can't stand it anymore.

The editor tilted his head and recalled: "It seems not."

Kazuma immediately turned to the writer: "Can you remember when the air conditioner was turned on?"

"I...coded until I fell asleep on the table at the end. There are traces of my saliva on the manuscript paper! The traces of saliva can prove what I said!" the writer said somewhat hysterically.

Asano smiled bitterly and said: "What's the use of proving this? You still don't have an alibi, teacher."

"I...I really didn't kill the landlord and his family! Although I occasionally have quarrels with the landlord and his family because they watch TV too loudly, I don't have murderous intentions! As for the guy from 102, he I said several times that I would stab the landlord to death!"

Kazuma: "Are you sure?"

"Yes! All the residents have heard him shouting like this. He is the most suspicious! Go and arrest him! And he is a bad person. He has no idea what his profession is. He often hangs out in the bar until four or five o'clock before coming back. Come back They even make loud noises!"

Kazuma frowned: "Did you hear him making any noise early this morning?"

"No, I really fell asleep while working on the manuscript."

Kazuma: "Do you know what time you went to bed?"

"I don't know...but I remember, around three o'clock, I heard the cat meowing outside the house, so I checked my watch!"

Kazuma quickly jotted down the contents in the police manual: The air conditioner was not turned on at three o'clock.

"Thank you for your cooperation. Please ensure that you stay where we can find you at any time. I wish you a happy coding today."

The writer looked frustrated: "How can I write down words now! I really didn't kill the landlord and his family!"

The editor also stepped forward and said: "The teacher can't bear to kill fish. I think he will never do such a thing."

Kazuma: "We will find out the truth, don't worry. Please trust the police."

The writer was already crying: "You are going to execute me next. The Japanese police like to beat people to death. My life is over..."

Kazuma: "No, please trust the police. Maybe there are some bad detectives in the Metropolitan Police Department, but I will find the truth."

"You look like a bad detective, with a cruel face." The writer said and closed the door.

Kazuma glanced at Asano: "My face is full of flesh?"

"It's not bad. There are so many detectives who didn't make the right team and they look like Yakuza." Asano said.

Kazuma shrugged and turned towards the stairs.

"What's next?"

"Walk around outside the scene, and then go back to the headquarters to wait for the autopsy report." Kazuma answered.

**

Detective Ida rushed into the office of Section 1 with the practice report. When he looked up and saw Kazuma still in the office, he strode over: "The autopsy came out. It was beyond all of our expectations."

Kazuma: "What's wrong?"

"The time of death was seven or eight o'clock this morning, much later than we expected."

He Ma was speechless: "Did he die just this morning?"

“Yes, the cause of death was excessive blood loss.

"Then the previous speculation has been overturned. The owner's mother-in-law entered the room before ten o'clock and found the body. If he died at seven or eight o'clock, it happened to be working time, and this apartment happened to be located on a road with a lot of traffic. Yes, people renting in several apartments nearby go to work."

Detective Jutian wrote the new time of death on the whiteboard: "Go and visit the nearby residents. Maybe someone has seen the murderer!"

Kazuma: "Have the photos of the scene been developed?"

"It's been developed." Detective Ida's partner Kameyama handed a file bag to Kazuma.

Kazuma took out the photo and looked closely at the deceased.

"There are indeed traces of water," he whispered.

Detective Jutian came over curiously: "What are the water traces?"

"Look at the wounds on the body, there are obvious signs of moisture. Something wet the clothes of the deceased first, and then blood flowed out."

Detective Guishan looked through the autopsy report: "Ah, the forensic doctor also discovered that there was unusual moisture near the wound surface, and there was mild frostbite in the muscle tissue..."

Kazuma: "It's an ice blade. Someone stabbed three people with an ice blade, and then turned on the air conditioner. After the ice blade melted, a lot of blood would flow out."

"But it shouldn't be. The three of them showed no signs of resistance at all. Ah, wait a minute!"

Detective Jutian stood up abruptly: "Mr. Landlady has been suffering from insomnia for a long time, so he takes sleeping pills. Look here, the ingredients of sleeping pills were detected on the three people in the room.

"But why did the child and the landlady take sleeping pills? Could it be that the murderer invited the three of them to drink tea first, with sleeping pills in the tea, and waited until the three of them fell asleep before committing the murder?"

Kazuma pursed his lips: "Yes, the landlady took sleeping pills and fell asleep, but the landlady couldn't explain it. Do they usually like to drink black tea before going to bed?"

After saying this, Kazuma laughed awkwardly. It was not a good idea to play such embarrassing jokes at this time.

Detective Jutian asked in confusion: "Why black tea? Does this have anything to do with the case?"

"Don't worry, my brain is showing off. So, what's going on?"

The four of them looked at each other.

Asano picked up the detailed forensic report from the forensic department and said while flipping through it: "Why don't we start from somewhere else? Maybe the forensic department found the murderer's hair from the scene?"

Kazuma: "As a landlord, he often receives guests. Anyone's hair found in the room can be explained, and it cannot be specific to a specific person."

Detective Jutian sighed: "I think it's better to start casting a net to investigate. Maybe we can get some clues from people at work."

Kazuma: "If it was a skateboard murder, it is likely that the murder occurred at night, and then the prisoner used the timer function of the air conditioner to set the time for the air conditioner to automatically turn on, and then went out to create his own alibi."

"Then how do you explain that all three of them drank sleeping pills?"

Kazuma curled his lips: "I don't know. Maybe the landlady was cheating on her and wanted to have an affair, so she deliberately gave her husband and children sleeping pills? Then the lover came over and gave her a cup of black tea with sleeping pills, and she fell asleep after drinking it. Three people were brutally murdered.”

Detective Jutian snorted: "You are talking too much. A lover suddenly ran out..."

Asano: "The lipstick used by the landlady has the slogan 'Encountering First Love'. She is an old woman, and her use of cosmetics should focus on skin care, anti-aging, moisture retention, etc., but she uses a sweet type that only young girls would use. cosmetic!"

Detective Guishan frowned: "Just because of this, you conclude that the landlady is having an extramarital affair?"

Kazuma: "This is an idea. Give a child sleeping pills for an affair, and then make out with the person you have an extramarital affair with in front of your husband. It's quite fun, madam."

Detective Jutian: "These are all inferences. Where is the evidence? We have to talk about the evidence!"

"Let's go and visit. If there is really an extramarital affair, the landlady will definitely buy men's products." He Ma said.

"She is a woman with a husband, and he would have bought men's products." Detective Jutian reminded.

"Then the items she bought but couldn't find in her home were given to her lover. In addition, the ice skate mold is also a starting point. This kind of mold is not common."

Detective Juda nodded: "That's right. Judging from the shape of the wound, the ice blade should be in the shape of a bayonet. You can either modify the mold yourself or order it from the manufacturer."

"Then we will start with these two lines tomorrow."

"Tomorrow?" Detective Ida looked at Kazuma, "You arrived at Search Class 1 and you still want to get off work normally?"

"No, it's already seven o'clock now. We don't get off work. The places we visited have to get off work." He Ma spread his hands.

Detective Jutian was speechless: "That's right. Okay, let's get off work. Remember to come early tomorrow! Remember, I am the commander of this search operation!"

"I know." Kazuma waved.

**

The next day, as soon as Kazuma arrived at the Metropolitan Police Department, Detective Ida ran over and said, "I found the mold for the skate blade. It was just sent to the forensics department. I'm going to go there. How about you?"

Kazuma: "Let's go! Where is your partner?"

"The idiot is probably still in the gentle land of women. Isn't your partner here too?"

Kazuma glanced at the desk given to Asano's family in the corner of the office yesterday.

I don't know who thought of moving a school desk to use as Asano's desk, but it looked very out of place with the entire search class.

Kazuma: "Let's go."

Detective Jutian nodded: "Let's go."

After a while, the two rushed to the forensics department, and Kazuma saw the wooden mold at a glance.

"wood?"

The appraiser nodded: "Yes, wood. The inside is polished with sandpaper. The maker is an expert in carpentry."

Kazuma immediately recalled the contents of the resident information.

"The resident of 102 worked as a carpenter." He Ma said.

"That alone doesn't prove it's him. Did you find any fingerprints or anything on it?"

"No." The forensic examiner shook his head, "I wiped it carefully and couldn't find anything."

Kazuma leaned closer and smelled: "It smells like air freshener."

"Hey, is there one?" The forensic examiner was shocked and leaned closer to smell it, "No!"

"Yes, I have a good nose." He Ma replied, "Test it carefully, there must be residue. I remember this smell, I also smelled the same smell in Room 102."

At this time, Asano hurried over, and when he saw Kazuma, he complained loudly: "Tales from the Kiryu Police Department, you should meet up with your partner and start investigating the case again!"

Kazuma: "You came just in time, let's go catch the prisoner."

Detective Jutian was shocked: "Catch annoying people? Don't make trouble. Applying for an arrest warrant is very troublesome, unless you can catch the current criminal."

Kazuma smiled at Ida: "Anyway, as long as the criminal pleads guilty, the Japanese police can arrest him, right? So rather than conducting a down-to-earth investigation, it is faster to confront the criminal directly. This is also what I did in 300 Million Days I learned it during the investigation of the Yuan robbery case.”

In the 300 million yen robbery, Kazuma relied on forcing the prisoner to have his wife killed, but in fact he had no evidence at all.

Therefore, he deeply realized that the Japanese police attach great importance to prisoners' confession.

As long as the prisoner confesses his crime, the Japanese police can convict him with very little evidence.

Therefore, rather than investigating, breaking down the prisoner's psychological defenses and getting him to confess is the most important thing.

I didn’t expect it to be true in detective novels.

Kazuma strode out of the forensics department and went straight to the elevator.

Mr. Xicheng is delivering newspapers now. He Ma is already familiar with the distribution center where he works.

He picked up the car and took Asano straight to his destination.

Then he unfortunately got stuck halfway.

The absence of police lights and sirens was an eternal pain for him.

The key point is that this cannot be solved by recording a siren with the equipment of a crepe shop. Police cars with sirens must be registered, and unregistered cars that sound their sirens indiscriminately will be punished.

Finally, where Xicheng worked, Hema found that people were off work.

After struggling for a long time, Kazuma found Xicheng in a pachinko shop.

Xicheng glanced at Kazuma: "It's Detective San. I have nothing to say to you. My alibi is perfect!"

Kazuma: "But you hid the fact that you had an affair with your landlady, didn't you?"

Xicheng's hand stiffened while playing with Pachinko.

"So what?" Xicheng said loudly, "Is there a rule not to have sex with a married woman?"

"The landlady would give her son sleeping pills every night just to have an affair with you. Then the night before yesterday, you put sleeping pills in the wine you brought. After giving it to her to drink, you stabbed the landlord's family with three ice knives. "

"You accuse me, do you have any evidence?" Xicheng interrupted Kazuma.

Kazuma smiled and said, "Of course I do. This is a photo of the scene."

Kazuma took out the photo and showed it to Mr. Xicheng.

"Did you notice that the landlord's posture was different? He woke up midway and then held the ice blade on his chest. At this time, part of the ice blade had melted and broke off. The landlord also bled to death prematurely."

Xicheng said angrily: "What does that have to do with me? I drank all night long that night and went to deliver the newspaper the next day! I have an alibi!"

"You didn't. Because the real time of the murder was before twelve o'clock that night. As for the evidence..."

Kazuma reached out and took off the wig from Xicheng's head: "It's right here. I noticed before that the edge of your wig is a little uneven here. Why?"

Mr. Xicheng, whose wig was suddenly taken off, was a little panicked: "You! Give me back the wig!"

Kazuma held up the wig high, because the others were taller, and even if Xicheng stood up, there was no way to grab the wig back.

"Answer me, why is the edge of your wig a little uneven? Usually this kind of wig is made to look fake! But the first time I saw you, I knew you were wearing a wig. You are bald!"

Xicheng became angry and said: "The quality of the wig is just bad!"

"No! I think the quality of this wig is quite good. It was you who tore the wig during some extreme behavior! You are so precious wearing this wig. I guess the person who gave it to you is very fond of you. Is it important? As long as you investigate, you will probably know who gave you this wig!"

"Go check it out!" Mr. Xicheng shouted.

"In addition, I saw the women's fashion magazine in your room." Kazuma stared at Xicheng, "I saw it the moment you opened the door yesterday! 'Encountering first love', this slogan is written in the magazine Go up. I think you bought that lipstick before, but you can’t find it in your room.”

"I often give things to women I meet in bars, and I have to read more fashion magazines so that I can talk about flirting with girls! You don't know how to flirt with girls, do you?" Xicheng said harshly.

"You probably don't know that these luxury goods, in order to prove your nobility, are all numbered. Just check which one you bought and you will know." Asano suddenly interjected, "And that number is Write it on the bottom of the box.”

Xicheng was stunned.

Kazuma continued: "Also, I smelled the smell of air freshener in your house. Could it be that you had some smell that you wanted to cover up that day? For example, the smell of blood."

Xicheng: "After the murder, my home was searched by the police immediately!"

"Yes, of course you will be searched. But the smell you want to cover up is not the smell that actually exists, but the smell in your heart!" Kazuma said loudly, "By the way, the mold you threw away also has a fresh smell. The smell of the agent. The forensics department will prove that it is the same fragrance type as the one you used to spray in your home!”

Kazuma suddenly raised his voice: "Xicheng-san! Confess!"

Xicheng was startled by Kazuma's suddenly raised voice, and after a moment he said tremblingly: "The landlady and I were just having fun."

Kazuma shouted angrily: "Tell me the facts of your crime! Don't beat around the bush!"

"I confess. I wasn't serious at all, but the landlady suddenly told me that she wanted to leave with me. Can you imagine? An old lady, and I am still a good young man, she actually asked me to marry her!

"So I decided to break up, but the landlady said that if I broke up, she would tell her husband and kick me out of the room. The landlady was very violent and beat me many times. I was on good terms with the landlady. To get revenge on him!

"I didn't expect that they were the same couple! They bullied me together! So I, so I decided to take revenge on them both!

"I read a detective novel at the landlord's house, and there was a secret room with ice knives to kill people, so I decided to copy the method above."

Kazuma sneered: "You are so naive. Modern criminal investigation science has developed greatly a long time ago."

"I wore gloves and didn't leave any fingerprints! And I often go in and out of the landlord's room, so I would have left fingerprints and hair!" Mr. Xicheng said, "I have seen this technique in a magazine. And the magazine said it Even if you use a police dog, you can't smell the problem."

He Ma was stunned: "What are these detective magazines doing?"

"But I didn't expect to meet a police detective who was as witty as the one in the magazine." Xicheng looked at Kazuma, "You saw the magazine in my room with just that one glance. It's amazing."

"I have sharp eyes." Kazuma shrugged.

At this time, the sound of sirens came from far away, and a police car stopped in front of the pachinko shop where Kazuma was. After a while, Detective Ida rushed in and said to Kazuma: "Where the molds were discarded, someone who looked like Xicheng was seen. , the Metropolitan Police Department has issued an arrest warrant...Eh?"

Kazuma: "He has already confessed. However, it seems that I no longer need to force him to have an abortion."

Xicheng looked shocked: "How could I be seen? I am obviously the least crowded in the morning..."

"This is called Skynet's meticulousness." Kazuma patted Xicheng on the shoulder, "Go in and repent properly."

Asano was speechless: "Wait a minute, the arrest warrant was issued because an eyewitness saw Xicheng, but what about our credit?"

Kazuma took out the tape recorder in his pocket: "Here it is. The whole process of my questioning is here."

Detective Ida: "The Kiryu Police Department noticed the ice skate crime and noticed the smell on the mold. This is already a great achievement. Saburo Nishiro, I declare to arrest you for murder! You can remain silent..."

Kazuma suddenly interrupted Detective Ida and said loudly: "You have the right to remain silent, but every word you say will become evidence in court. Damn it, I did it just to say this. police!"