Ignoring Ikeda's astonishment, Tenichi made even more shocking remarks: "This policeman is a 'paper' class like me, and is not in the same class as you humans, so I can't find a book with his name printed on it in my store." But it doesn't matter, he will more or less reveal some of the progress of his reasoning to his colleagues and superiors, and I can piece together clues from other people's voices. ”

"What the hell are you ......," Ikeda stammered.

"Who the hell is it?" Tianyi directly said what Ikeda wanted to ask: "My name is Tianyi, the heaven of the world, the first one, this is not a stage name, I can show you the ID card." He took another sip of coffee: "Of course, it doesn't matter, it's important for you to remember the name of that policeman, Whale Bird."

In terms of his ability, it will take him a maximum of forty-eight hours to find and push you into a corner. ”

Ikeda replied in a panic: "What are you kidding! Matsuo-sensei's death has nothing to do with me, whether he commits suicide or he kills me, it has nothing to do with me!"

Tianyi picked up Miura's book of hearts: "I'll offer you a second deal now."

If you give up looking at Miura's heart, I'll tell you about the real murderer who killed Matsuo, and the flaws you left last night that will set you on fire in the future. ”

Once again, Ikeda was faced with a choice, but this time he quickly made a decision: "Okay, I'm not going to read Miura's book, you tell me about last night!"

"Hahahaha......" Tianyi laughed maniacally, "Did you easily give up the opportunity to take revenge on Miura because of fear?" ”

The laughter sounded harsh to Ikeda, and he felt like a doll being played around by the weirdo, but there was nothing he could do.

After a full minute, Tianyi stopped, "Okay, I'm true to my word, at least when it comes to trading. He cleared his throat: "The things you thought of going to do last night were basically all drawing, and the things you forgot to do were very deadly." ”

Tianyi picked up the coffee pot next to him and refilled his cup a little, and continued: "Let's start by opening the door of the faculty member's office."

The fingerprints left on the door cannot be used as evidence, because even if there are dozens of people's fingerprints on the door of the office, it is not surprising, I believe you also thought of this, so you did not turn back to wipe the fingerprints on the door, but only wiped off the window in the corridor on the first floor.

But you forget that you left a whole row of fingerprints somewhere that no one else would ever touch, or ...... Palm prints. ”

Ikeda was stunned: "Oh no!"

Tianyi: "When you were so frightened by a cold corpse that you sat on the ground and fell backwards, you left a lot of palm prints on the floor, the kind of place where everyone stepped on it, and you left such a strange and neat row of palm prints, is it intended to be interpreted as 'you entered the office upside down during the day'? ”

Ikeda was not in the mood to joke with him, and he replied, "But...... Suicide in general, no, even murder!Would anyone do it to the point of having fingerprints taken on the floor outside the door?!"

Tianyi slapped the table one by one: "Well said! Good insight! Your guess is good."

Take Sakura's Mansion as an example, in any murder case, the first police officer to the scene is responsible for protecting the scene and doing a preliminary investigation. After that, there will be a group of technical nerds who are responsible for collecting evidence with high-priced equipment, which is called the physical evidence department. At this time, the first police officer to arrive will decide the nature of the case and the direction of the investigation based on their preliminary judgment.

If it is just treated as an ordinary suicide case, there is no need to do too detailed evidence collection at all, symbolically get a few fingerprints on the lethal object, take a few photos of the scene environment, the evidence and the deceased, and then transport the body away and close the team. The whole process can be completed in two or three hours if it is fast.

The work of questioning the relevant personnel can be done at the time of evidence collection, and the subsequent post-mortem work is only to find out the cause of death, and not too many tests will be done. When the evidence, testimony, and autopsy report were all released, the police officer in charge of copywriting wrote a brief report, put the information in the record into the computer for archiving and backup, and threw all kinds of messy physical evidence into the file bag and closed the case.

Sakurafu has always been a place with a high suicide rate, and the police can handle this kind of case, if not easily, but at least practice makes perfect.

Like the kind of guy who evolved directly into a full-time NEET after graduating from high school, sat in a room without sunlight and fell in love with a two-dimensional character for many years and registered his marriage, until he finally masturbated too much and died.

Such cases would never have been to the point of carpet fingerprinting around the scene of the death. ”

He said a lot of this in one go, and finally popped out two fatal words: "But!"

Tenichi picked up Miura's Book of Hearts, flipped to one of the pages, pointed to a line of words in it, and placed it in front of Ikeda: "Read." ”

The moment Ikeda's gaze made contact with the words in the book, his whole body trembled: "Wouldn't it be nice to wipe off your footprints, that stupid person with wet mosquito coils, and wouldn't it be too suspicious to wipe off the fingerprints on the window frame?"

Tianyi immediately closed the book and retracted it in the drawer of his desk: "As a result, even Miura's thinking is clearer than yours, but people have just killed people with their own hands at that time, and it is indeed different from a guy like you who loses his soul after looking at the corpse." He continued to laugh sarcastically, "Use your brain to think about it, if Matsuo was a person who was about to commit suicide, would he go out of his way to wipe his fingerprints?

With these two pieces of evidence, normal people can deduce that Matsuo sneaked into the school building after 8 o'clock in the evening through somewhere other than the main entrance, and the police are not responsible, so they must at least find out how Matsuo entered the scene of the crime. You've expected all of this, but you've made such a low-level mistake, hey, stupid...... You can just wipe Matsuo's footprints clean together, and it makes sense. ”

"What did you just say...... Ikeda didn't listen to the second half of Tenichi's words, his mind still lingering on the phrase "they had just killed someone with their own hands."

Tianyi slapped the table and laughed: "Hahaha...... That's where your other stupidity comes in, if you stick to making the first deal, you can still know who the real culprit is when you read Miura's book. ”

Ikeda gritted his teeth with hatred, but the other party did give him a choice, and he had nothing to say.

Tianyi: "Okay, I've said everything I need to say, the deal is over, please get out of here if there's nothing to do." ”

Ikeda was reluctant to leave: "You can testify, you know that Miura killed someone......!

Tenichi interrupted Ikeda with a shake of his finger: "I don't have the time, the mood, the interest, or the obligation to do this. ”

"That'...... So...... Why did Miura kill Matsuo, and how did Matsuo run to school by himself in the middle of the night?" Ikeda asked.

Tianyi spread his hands: "Miura's methods of murder, motives, Matsuo's actions, and how to get rid of being tracked by whales." If you need to know that, we can make another deal. He took a sip of coffee and said, "Of course, you can get out of here as soon as possible, wash your neck, and wait for the whale bird to finally arrest you according to the limited clues and his limited wisdom." ”

"But Miura killed him, don't you know?" replied Ikeda.

"Hahaha...... After Miura killed someone, he faked it as a suicide; after Miura killed someone, he didn't forget to close the door casually; in the process of Miura's killing, not to mention fingerprint footprints, he didn't even leave a single hair; finally, before Miura fled the scene, he saw you, and he was able to hide in the dark and monitor without panic, and he didn't withdraw until you left. Tianyi looked at Ikeda with disdain: "So...... Who do you think is more likely to be caught by the police, himself or Miura?"

When Ikeda heard this, his chest was like a pot of boiling water, his blood and qi surging upward, and an inexplicable emotion easily overwhelmed his reason, and Tianyi's every word stabbed at the most subtle weakness of human nature, inducing Ikeda to take the next step.

"What do you want me to do?" Ikeda asked, his expression already like that of an addict.

............

December 11, 4:53 a.m. The whale bird was wearing a shabby leather coat, crouching next to the corpse and munching on a bean paste bag.

It has been more than ten minutes since he arrived at the scene, and his colleagues have not yet arrived. After asking a few questions to the security guard and looking around, he stood on the table and got the body down.

"Crawling out of the bed before dawn and running to school against the low temperature made me feel ten years younger. The whale laughed at herself as she examined the carcass.

"Hey...... What's going on......" Just before the whale's eyes, a pattern gradually appeared on Matsuo's pale face.

It was two vertically staggered black rectangular lines, more than two fingers wide. Longer black lines run from Matsuo's forehead through the bridge of his nose to his chin, as if to divide his face into left and right parts, while the shorter one extends from his left cheek to his right cheek, as if a piece of tape covers his mouth.

"After untying the rope and flattening the body, the blocked blood passed through the neck and finally reached the head, and the result was revealed......" The whale bird looked at Matsuo's face and said to himself, "Black reverse cross...... What could it mean? Was this guy committed suicide with such an extreme expression because he believed in some strange order, or was it the original mark of some new perverted murderer...... Hmph, it's getting interesting. ”