"The nature of scars is divided into pigmentation and granulation tissue, and if it is a living human body, the scar will be affected by the metabolism of the two components mentioned above will quickly be affected by the new scar and become difficult to identify, even if the new injury has not yet scabbed. ”

"But if it's on a corpse, especially after the heart has stopped beating, the scar is opened, because the blood no longer flows, the pigment is rarely metabolized and the new injury does not scab, so it can't be covered, unless the flesh and blood of the scar are directly blurred, otherwise how many times will it leave some traces, after all, the bigger the wound, the more difficult it is to cover. Faced with Mizuma's inquiry, Konoha Yiyu explained in detail.

"I see, thank you, thank you. Mizuma hung up happily, and when he stood up and was about to check the back of Heido Doji to verify it, the Matsumoto manager walked in, and with him was the Twilight Police Department.

"Mizuma, what's the case?" asked the Twilight Police Department impatiently as soon as they entered.

"Not a murderer twenty years ago, just a copycat. "Mizuma told the truth.

"Is it just a copycat?" said Matsumoto as he lowered his head in disappointment, shaking his head and sighing.

"What's wrong?" Mizuma felt that Matsumoto's appearance was not like a simple disappointment, and he was still very dissatisfied with himself.

Could it really be that Matsumoto Management did it, and he was disappointed to know that he had exposed his feet and failed to blame the murderer twenty years ago?

Of course, it can't be done by Matsumoto Doji, but if it was Matsumoto Doji, the moment he saw the back of Heido Doji, he should know Heido Doji's identity.

Sighing again, Matsumoto said, "My eyes are really old, and my scars hurt sharply when I walked into this house, but I didn't expect it to just react to the imitation." ”

Both Mizuma and the Twilight Police Department expressed a black line to Matsumoto's intuition that was similar to that of the middle two, but Mizuma Moon said in a remark, "I guess the manager's scar is not wrong, right?"

"Oh, is there a clue to the murderer on the imitator?" said Matsumoto, who was still thinking that he was getting old.

"No...... Mizuma shrugged, "Why is everyone focusing on the living?"

"Could it be!" Managing Officer Matsumoto and the Twilight Police Department looked incredulously at the corpse of Hirado Doji with his back to everyone, and the dark red Z on his back attracted everyone's attention.

Mizuma found a wet towel and cleaned the top horizontal of the scabbed Z.

Sure enough, on both sides of the knife wound, you could see some special skin that was darker than the surrounding skin: "Please take care of it yourself, this scar is still familiar?"

"This ...... This ......" Matsumoto's hands were trembling, his eyes were getting bigger and bigger, his face was flushed, and even the scar that was still on the alarm just now seemed to glow red, and Mizuma Yue was afraid that the management officer would suddenly have a heart attack and faint with a cerebral hemorrhage.

"So this man is the murderer of five cases twenty years ago and fifteen years ago?" asked the twilight police department with a shudder.

"That's right, even before this case, I had already found some connections between the victims, and Heidong Doji also happened to match, if it wasn't for the case, I would have verified it immediately. Mizuma explained.

"What is it!" asked Matsumoto as a sudden surge and grabbed Mizumatsuki's shoulder.

"Cold ...... Calm down, it's mahjong. After a difficult psychological struggle, Mizuma chose to wipe the saliva off her face in front of the management officer, and then said.

"Mahjong?" The people around him were all confused.

"That's right, I spent some time in the morning researching some of the rules of mahjong that are customary among the people. Mizuma said shamelessly: "According to the memories of the deceased's family, the deceased all went out on Saturday night, and the words related to that were actually related to mahjong language. ”

"In other words, all the dead are friends?" the small eyes of the Twilight Police Department widened, unable to believe this magical inference.

It's hard to imagine, but it's not unreasonable, but there is no more reasonable reason to make three or four people with different statuses sit together and get involved. Mizuma spread his hands.

"In ...... Can this evidence be found on this person?" asked Matsumoto Officer.

For Heido Doji, the stewards were hesitant whether to call him a deceased or a murderer.

"Yes. Mizuma Yue nodded: "The program recorded by this person before was broadcast this morning, and most of the lines he used were related to mahjong terms. So there is no doubt that he is the n on the mahjong table."

"Then now we need to check the mahjong parlors to see if anyone knows that these four people have played mahjong together. "Matsumoto management adjusted his state, and the momentum of the big leader returned, and he was ready to arrange for someone to visit the mahjong parlors in the city.

"Dry order, Mizuma, I thought you went out early in the morning to search for clues to be lazy!"

There is a ghost in the heart, and the moon is dripping with sweat.

"Don't be angry, in the morning, you stared at a pair of dark circles and told me that you were going out to search, no matter how you looked, you were trying to find a place to catch up on sleep. The Dusk Police Department embarrassedly argued, sure enough, Jiang was still old and spicy.

"Don't worry! Don't forget that we still have a case in front of us waiting to be solved!" said Mizumatsuki with a smile, these two bigwigs just missed the old things of twenty years ago, and seemed to have forgotten that they had not yet found the murderer of Heidong Tangji.

"yes, who killed him?" the Dusk Police Department reacted.

"According to my analysis, there are two possibilities for the identity of the murderer, but they all point to the same group of people. Mizuma Yue raised two fingers: "First, the murderer doesn't want the prosecution period of the case twenty years ago to expire, so he imitates the murderer to commit the crime and prolong the prosecution period, and the experts who make nonsense about the murderer on TV naturally become the best target, and the only people who will have this kind of appeal are the family members of the victim except for the management officer; Mizuma said.

"It shouldn't be limited to the families of the victims, right?" said the Twilight Police Department, who felt that Mizuma's analysis was not correct enough.

"Because of confidential information. Governor Matsumoto said, "Twenty years ago, the murderer whistled and the murder method were all contained in confidential information, and the fact that the imitators could imitate all of this means that they were the ones who knew the confidential information, and apart from the leakage of information from the police, only the victim's family remained." ”

"That's right, so I suggest that the soldiers divide into four ways now, and visit the mahjong parlor and the relatives of the victim. Mizumatsuki suggested, and then changed her words: "No, there should be a few family members who know about it, and now it is less than an hour before the murder, and the murderer should still be dealing with traces now, judging from the scene, the murderer will at least be stained with some splattered blood." ”

"Didn't you look carefully at the information about the families of the victims? The Twilight Police Department gave Mizuma Moon a roll of his eyes: "Jiji Fangchuan has no descendants, only his wife is his family; Atsunori Maida's wife has died, and the only suspect who knows about it is his younger brother, Nabii Jin divorced his wife before he was killed, and only his only son knows the situation." ”

"I took people to visit Naboi Shin's son, Twilight took people to meet Atsunori Maida's younger brother, Mizuma took people to find Jiji Fangkawa's wife, the rest of the people detained the people who maintained the scene, and the rest of the people went to check the mahjong parlor. "Managing Officer Matsumoto arranged it without saying a word.

In the blink of an eye, Officer Matsumoto and Officer Twilight ordered five or six people to follow him, and only Mizuma Moon was left.

"Gongwang!" Shui Jianyue shouted to Gongwang of Shanxian County, and the head of the department under him: "You go and order a few people to go to Fang Chuan's house, this is the address." Ignoring the surprised eyes of the Shan County Gongwang, Mizumayue slapped a note with the address of Fang Chuan's family written on it.

Because Mizuma Moon guessed the little abacus of Matsumoto Management in a second, Fang Chuan Jiji's wife is sixty years old, and Atsunori Maida's younger brother is also nearly sixty years old, compared to them, only Nabii Shin's son is only in his twenties who is likely to commit a crime and revenge, and Matsumoto Management Officer wants to arrest the prisoner with his own hands, so he supports Mizuma Moon and Mudui Police Department to the families of the other two victims.

"Okay, the forensic personnel and the forensic doctor don't have to act together, leave you, you, you and the two of you to guard and protect the scene, and the rest of the people will investigate the mahjong parlor with me. Mizuma took out the map marked with the mahjong hall from his arms, and just wanted to mark the home of Ping Dong Tang on it, only to think of what to do if Ping Dong Tang moved in the past 20 years, so he had to give up, and marked the mahjong parlors that were about the same distance from the homes of the first three victims, and Mizuma Yue was assigned the task of a mahjong parlor in each group in a group of three people, and it happened that Kato Kumashin was left alone, and Mizuma Yue sent him to check if Ping Dong Doji had moved, and where was the address twenty years ago.

……

Mizuma walked into his first target mahjong parlor.

"Hello, are you the only one?" An elderly waiter stood at the desk of the mahjong parlor, with a hairline precarious hairstyle, a little funny, and greeted Mizuma Tsuki warmly.

"Hello, I'm not here to play mahjong. Mizuma smiled and walked over.

"I don't think you're either, very few people come to play mahjong during the day. The waiter uncle smiled and said, "So young man, what do you want?"

"I'm a police officer. Shui Jianyue took out his police ID card and handed it to the other party: "Don't worry, I'm just here to ask about some old things." ”

"Old times?" the waiter uncle didn't understand.

"First of all, how much time have you been working here?"

"Come to think of it, it's probably going to be almost thirty years. ”

"So do you know these people?" Mizuma took out the photos of the four deceased from his arms: "I think they should come to play mahjong often for about twenty years, and the time should be ......" The reason why I didn't make it clear may or may not be here is to add a faint mental hint to the other party and make the other party work harder to remember.

"It's supposed to be every Saturday night, right?" I didn't expect the waiter uncle to answer.

"Do you recognize them?" Mizuma asked in surprise, not expecting the first mahjong parlor to win the lottery.

"I know these three people, as for this person I don't know, could it be that the police officer is afraid that I will lie and deliberately test me?"

"I'm sorry, but I have old photos of the other three, only this person is the current one, so it's not the same as it was twenty years. Mizuma explained.

"Ah, so to speak, the person sitting with them playing mahjong at that time was a college student, who seemed to be studying some kind of psychology, although he didn't have so many beards, but the face shape was really similar. Uncle waiter recalled.

Instead, Mizuma was confused: "Are you impressed with them?" It's hard to imagine that a mahjong parlor waiter would have a fresh memory of the guests from twenty years ago.

"Yes, that's a very powerful table of guests!" The waiter uncle showed a look of reminiscence: "I am clearly anxious, they will come here every Saturday night at ten o'clock to report, doctors, professors, lawyers and college students, although the four of them are of different ages and occupations, they are like-minded, and they always play cards while reasoning about the actual cases that have happened......"

"Wait? You say reasoning. Mizuma's eyebrows furrowed again.

"Yes, from medicine to physics to law and so on, everyone analyzes the recent cases from their own expertise and puts them together, and to my amazement, in the end, it turns out that their reasoning is 100% correct. The waiter uncle said.

"Life is really full of learning!" said Mizuma exclaiming.

'It's another group of idle detectives. Mizumatsuki scolded in her heart.

"yes, it's a pity that they haven't been here since. The waiter sighed.

"Is it because there is some conflict between them?" Although I don't understand the recent hyped murder case, this uncle doesn't know, but Mizuma Yue also pretended not to know about the murder case, and simply followed the topic to ask, in fact, he wanted to ask the motive for the killing.

"You seem to be like that!" the waiter uncle seemed to be thinking about this question: "I remember one day they didn't have any cases to talk about, so they talked about what seemed to be a complete crime, and finally they argued." ”

"Is it the perfect crime?" Mizuma asked, as if those mystery fans like to study this.

"Yes, yes, yes! The waiter uncle said: "They broke up that day, but on the second Saturday they still got together as usual, but this time they quarreled before they started playing mahjong, and finally they left." ”

By the third week, the college student was left alone, sitting alone on the mahjong table and fiddling with mahjong tiles alone. ”

Mizuma Moon estimated that it was probably because two of the four people had died at that time, and the other Nakai Jin guessed that it was Heidong Doji who did the case, so he didn't dare to show up.

"I see, thank you for your answer, in a few days there will be a police officer who will invite you to take notes, don't panic when the time comes, just say this again. Mizuma said.

"I'm sorry Mr. Officer, I don't know what happened to the four of them?" asked the waiter.

"Ah, anyway, I'll see the news soon, and it doesn't hurt to tell you, all four of them have been killed now!"

"Killed!" the uncle was startled and hurriedly asked, "Is it that madman?"

"What madman?" Mizuma, who had already planned to say goodbye, was interested again.

"It was a withdrawn guest, and when the four of them used to reason, he always ran over to find fault with them, but each time he was dumbfounded and fled. The waiter uncle thought for a while and said solemnly: "It was the day when the college student was alone, that person ran over and mocked the weak college student, and the two of them quarreled excitedly, and threw mahjong tiles at each other, and finally the man roared angrily and said, 'I'm going to slaughter you all!', and in the end they never came here again." Saying this, the waiter's uncle's expression became sad.

Woke up, the waiter uncle smiled: "Don't laugh at me, officer, I don't have any special experiences in my life, so that magical guest at that table is my unforgettable memory." ”

"That's right!" the uncle suddenly crawled under the service desk and pulled out a dusty box.

"...... this?"

"Didn't you just say that? After the two of them quarreled and threw mahjong tiles at each other, the people who were all scratched by them could not be used by the guests anymore, so I kept this set ......of mahjong tiles in memory of those people, and I almost forgot it after a long time," the waiter laughed.

"Huh, have you ever wiped this deck of cards?" Mizuma suddenly became excited.

"Shouldn't there be?" Uncle can't think of all the trivial things of twenty years ago.

"If they hadn't been wiped before, they might have been able to check their fingerprints on it. Mizuma said excitedly.

"Yes, yes, yes, I heard the doctor's fingerprints, and I must have found the fingerprints of that madman. The waiter's uncle was even more excited, as if he had already avenged those people.

Mizumatsuki's phone rang.

"I'm Mizuma...... Uh-huh, got it?...... Sure enough, it's the same as we thought.,Okay, I'll go back immediately.,The mahjong parlor has also been found here.,Yes, I got the evidence.,It's a human witness.。 ”

As expected, when Matsumoto entered Nabei's house, Nabii's son didn't have time to deal with the bloody clothes and stun gun, and he had to confess to his actions, that is, he heard out during the morning show that Heido Doji was the murderer of his father, and used the same method as Hebido Doji to kill Heidong Doji.

But tell the truth to the waiter uncle who once longed for and admired those four people, and the uncle will probably not be able to accept it, Mizumayue doesn't want to be this evil person, so ......

"Then I borrowed this box of mahjong first, and I'll get it back after I use it, goodbye!"

In fact, the testimony that the waiter uncle can do can only prove that the other three deceased have played mahjong here, and Ping Dong Tang can only testify that he looks like the college student of the year, and he can't directly judge that it is him, and if the fingerprints of Ping Dong Tang are checked out on this mahjong, and the uncle testifies that the mahjong is only touched by him, the college student, and the quarreling guest, it can be recognized that Hei Dong Tangji has a relationship with the other three.

……

Sending a dirty box of mahjong tiles to the appraisal room, Mizuma came to the interrogation room, but instead of seeing Matsumoto Administrator spraying the prisoner, the prisoner was talking nonsense at Matsumoto Administrator.

"It's not that I've avenged my father! With your policeman's words, it's impossible to find the murderer!I'll let him get away with it right away!" said the young man in his twenties, who was younger than Mizuma, yelling at Matsumoto Administrator.

Mizuma Tsuki, who was originally walking towards the two, stopped.

In a sense, maybe the man was right.

He didn't know that the progress of the police investigation had made a breakthrough, he only knew that the police had been investigating for 15 or 20 years but had no clue, and seeing that there were only three days left to convict the criminal, it was understandable that he would be disappointed with the police.

And if he hadn't killed Heidong Tangji, according to Mizumatsuki's previous route along the mahjong parlor, it is indeed unknown whether he can find Heidong Tangji in three days.

Of course, maybe he didn't say anything wrong, but that doesn't mean that this person didn't do anything wrong, or that his father did it himself.

If Nabii had come out and reported him to the police after Heidong Doji killed Kashikawa Jiji and Atsunori Maida, he would not have been killed by Heido Doji five years later.

If Nabii Jin's son, Nabii Nagai Nagaki, found out that Hirato Doji was the murderer and chose to tell the police instead of taking revenge himself, the ending of this case would be much more beautiful than it is now.

Killing four people, including a policeman, the crime of Heido Doji must be prosecuted by death, and between the two choices of Nabii Yonggui, the only difference is whether he will put himself in it.

"What are you stunned about, the hero who solved the case!" Miwako Sato hooked Mizuma's shoulder from behind.

Mizuma was stunned for a moment, then came back to her senses and saw that Matsumoto was still arguing with Nagai Nagaki, smiled and said, "I was wondering where to put your birthday party." ”

"I hate it, it's good to live like it always does. Miwako Sato was a little embarrassed and punched Mizumatsuki in the chest.

"No, I have to give you a different birthday. ”

It's different, this birthday is destined to be different.