"Huh? Who are you? A voice of confusion came from behind Chiba, who was concentrating on thinking.

"Huh?" Qian Yu turned her head in confusion, only to see the fat police officer in orange clothes walking in. "I remember, you are... Officer Twilight, huh? ”

"Ah, you're a friend of Conan, right? I remember you were called ... Chiba Tachibana? ”

"Yes." Qian Yu nodded. "Excuse me, so I'm going to continue reading the dossier?"

"Actually, I don't think the serial kidnapping case during this time is the first case," Twilight walked to the side and took down another file. "Look at the dossier, be careful not to- ah, you're wearing gloves, when I didn't say it."

"I brought it with me before I read the file, brand new plastic gloves," Qian Yu moved her fingers. "There will be absolutely no defacement of the dossier."

With that, Chiba closed the file of the recent kidnapping case, put the notebook aside, and opened the file handed over by Officer Twilight.

On December 10, 1993, three kidnappers were surrounded by police after planning a bank robbery. The police promised to prepare a car for them and let them leave with one of the hostages, on the condition that they could not harm or take other hostages.

The police reneged on their promise and planted four miniature explosives under the seats of the car, which were limited to a dose that could only kill the person directly above the seats, intending to detonate the explosives under the robbers' seats according to their position in the car after the robbers had fled and rescue the hostages.

Unfortunately, in the end, the explosives killed only one robber - all three robbers were wearing full body armor and pants, and if it weren't for one of the robbers, the bomb might have blown into the dead corner of the body armor because of the wrong sitting position, and the robber might not have been killed.

In the early morning of December 11, 1993, a letter was found in front of the Metropolitan Police Department in a package containing minced meat containing the hostages.

"Huh?" Qian Yu swept halfway through the ten lines at a glance, and was suddenly attracted by a line of harsh words.

"Families can trust the police, they're just a pile of patina anyway!" (copper has two meanings, one is copper, and the other is slang for strips)

"This..." Qian Yu frowned, then closed the file and reopened the file for the past few days.

"Just call the police, they're just a pile of patina anyway!"

"If you want to call the police, call the police, anyway, the police are just a pile of patina!"

"Call the police or whatever, anyway, the police are just a pile of patina!"

These three sentences were recorded directly in the file, and were recorded by the police officers around the family members who had already called the police with a voice recorder, and the authenticity was 100%.

"So, Mr. Police, do you suspect this is the beginning of it all?" Chiba came to her senses and asked Twilight.

"Well, after all, the letter from a few months ago is top secret, and the average person has no way of knowing it. Oh yes, our side should close the dossier at ten o'clock, so let's get out of here. ”

"Can you give me some more time?" Qian Yu glanced at his watch and found that it was already half past nine, so he hurriedly pleaded. "Human life is really at stake!"

“。。。” Twilight pondered for a moment, then walked to the side of the dossier administrator. "Zoff, what time can you leave today? Oh, half past ten, then you can leave on time, and I will take over when the time comes, and the key will be given to me when the time comes. What if the door opens tomorrow? It's okay, I'll just be here at six o'clock and open the door. ”

After seeing that Twilight must have acquiesced to her actions, Chiba began to deduce from her original train of thought again.

The candidates, the time, and the kidnapping process have all been listed, and nothing new can be found with the new clues provided by Officer Twilight. Then, one of the aspects that should be taken into account and led by the kidnappers' various non-mainstream behaviors is the location!

"Officer, do you have a map?" Qian Yu raised his head and asked the dossier roomkeeper. "Rice Flower Town and the surrounding area, especially including the northern border of Rice Flower Town!"

"On the shelf over there, a paper map of Rice Flower Town." The administrator gestured to a nearby shelf, on which were several maps that looked like many people had flipped through them.

If you want to use the location related to the case to convey the kidnapper's information, you should consider the possibility that the kidnapper intends to express the information only by using the location where the family is informed by the phone or by using a place that the police can know.

1. The kidnapping location of each event - the ransom delivery location - the place where the body is thrown is connected by three points.

2. All events are chronologically connected with the place of abduction, the place where the ransom is delivered, and the place where the body is dumped.

3. Connect the kidnapping locations of all events, the ransom delivery locations, and the corpse dumping locations.

4. The ransom delivery location of each event - the place where the body is thrown is connected by two points

5. All events connect the ransom drop-off location in chronological order

6. Connect the ransom drop-off locations for all events and the drop-off locations

Just by researching the first possibility, the results have already been achieved.

The line of the first case is a greater than sign, the line of the second case is a less than sign, and the line of the third case is a straight line. What's even more interesting is that the three lines are actually written on the same straight line as if they were written on manuscript paper! Moreover, the turning points of the greater than sign and the less than sign are actually connected! (That is, the three connections look like this: XI)

This is obviously the message that the robbers want to leave behind, but the question is, what does this message mean?

"The name of the robber who was killed is... Qian Yu opened the old file again, and his eyes full of hope were full of helplessness again. "Hirata Hidetake... It has nothing to do with xi... ”

"xi, xi, shi-ne (to die)?" Chiba tried to spell out the possible pronunciation of xi. "But if you want to pronounce the sound of ne, that tail note can't be made with a three-point line... Neither nI nor ne will work. ”

"Huh?" A voice came from the door of the dossier room. "Zoff, what is this?"

"The Twilight Police Department specially approved him to come in and let him go through the files of the serial kidnapping cases."

"Is that so? Will I also show him the autopsy report I just made? The man, who was obviously a forensic doctor, took the report and walked up to Qian Yu and asked.

"Show me, it might work." After Qian Yu finished speaking, he took the autopsy report from the forensic doctor.

When Chiba read the column of the time of death, her pupils suddenly contracted.

The third victim was found at 5:53 a.m. at a garbage dump in Sanchome. The post-mortem was at 6:18 a.m., and the results of the post-mortem were very delicate. The body parts were placed in strict human order, the body temperature was close to normal body temperature, the relatively intact left thigh was not stiff at all, and there was a lot of evidence that the third victim was victimized between 5:40 and 5:53.

The third victim's file was reopened and turned to the testimony section.

Two residents who lived next to the dumping site and were awake before 5:30 said they did not hear any engines.

So, how did the body pieces get here?

Motorcycles and cars are engine-driven and will definitely be heard.

If you want to carry nearly 20 kilograms of corpses on a bicycle, you must use a bag. But in that case, the order of the corpse pieces would be completely confused, and could it be done in just fifteen minutes to rearrange the corpse pieces? What's more, the murderer didn't even make a mistake in a single limb when he spliced the corpse! Even the almost identical thighs, calves and other parts are perfectly spliced correctly! The reason why the medical examiner submitted the autopsy report in the evening was to check whether there was really not even a single splicing error that was reversed left and right.

How could such a reorganization be possible in 15 minutes, in a place where there were no sophisticated examination instruments at all, such as the place where the body was dumped?

The first possibility is that the murderer did not put the body in the package, but brought the body untouched, such as on a flat plate.

If the body is directly dismembered in the kidnapper's house, and then placed on the flat plate and carefully transported over, it will definitely take a lot of time to lower the body pieces from the flat plate and then put them together in turn. Thankless relative to the second possibility.

The second possibility is that the murderer took the girl to the scene of the dumping of the body and dismembered the body on the spot!

Qian Yu continued to read the autopsy report sent by the forensic doctor, and became more convinced of the second situation.

The first reason is that large doses of sedatives and sleeping pills have been extracted from the muscle tissue, which is obviously to prevent the girl from resisting, and if she had been killed in her own home, there is no need to do such a thing. (A rag is enough to prevent a voice, and only when you need to take a girl alive out of the house does you need to prevent her from resisting)

The second reason is that the garbage dumping point in 3-chome is more than 1,000 meters away from both exits in 3-chome, and for the girl who died at 5:40, it is impossible to cross 1,000 meters by manpower alone, and then place the body slowly and methodically. Even if you use dry ice as a backing plate and let the dry ice sublimate naturally at room temperature and then disappear, it is impossible to sublimate it at 5:53, and such a large amount of dry ice is by no means easy to move by personal strength. (The weight of the solid board of dry ice for girls is about 45 kg.)

Well, now Chiha's top priority is obvious, intercept Ayumi before the kidnappers take them to the place where the body is killed and dumped!