Conan reborn as a detective

Chapter 592 Another case

The death scene at dusk has a unique sense of horror and beauty. There are obviously no ghosts or ghosts, but once the topic of death is involved, it always makes people feel chills.

As a collective charcoal-burning suicide site, Sato Masa's family quickly fell silent after experiencing the initial uproar. The crowd of spectators dispersed, leaving only the blockade surrounding the house.

Under the leadership of Maori police officer, Gao Cheng and Dr. Sancheng walked through the blockade and entered the yard, and then entered the house after putting on shoe covers.

The typical Japanese-style house is somewhat similar to the old house where the spiritual incident happened in the past. I don’t know if it was affected by the case. It always looks a little depressed, and there seems to be a sense of despair in the air.

The scene of the incident was in the living room, a room of about 16 square meters. Except for the corpse being removed, the rest remained the same.

Gao Cheng checked the sealed doors and windows with a flashlight, and silently looked at the room furnishings based on the photos provided by the police.

There were 4 coal stoves on the low table, and the body was lying on the tatami around the low table, which looked normal.

"It's so sad..."

"That's it anyway."

Police officer Maori is always a little cautious in front of Gao Cheng. After all, to be a special consultant to the General Administration, the energy must be careless.

"We suspect that Masaichi Sato moved here by car after freezing the girl to death, and then committed suicide by burning charcoal with the other two..."

"But why do you have to freeze to death before bringing it here? Since you are planning to commit suicide by burning charcoal, wouldn't it be better to just do it here?" Gao Cheng questioned.

"Well, so it may be that after killing the girl, he thought of burning charcoal to commit suicide..."

"There is also a contradiction in time."

Gao Cheng browsed the convening post posted by Masaichi Sato in the suicide forum.

"It was posted a few days ago, that girl couldn't have been frozen to death for too long..."

"And this doesn't match the calculation results," Sancheng wrote in the information, "I heard that when the police arrived at the scene, the indoor carbon monoxide level was 204ppm, but judging from the volume here and the amount of charcoal burned, There should be a maximum of 1800ppm of carbon monoxide in the house..."

Sancheng walked to the taped window, the scene was sealed off tightly, and only one door could be opened and closed.

"The ventilation holes are blocked, the window seams are sealed with paper and tape, and the door seams are also very small. The airtightness of this room is already quite high. Judging from the suicide results, 204ppm is too low."

"It's indeed a bit low," Police Officer Maori wondered, "But what does this mean?"

"From the time when the three of them died to the time when the police came," Sancheng ignored Maori, looked at Gao Cheng and said, "someone opened the door of this room, so the carbon monoxide level decreased...it was this person who put the girl's The body was moved into the house."

Gao Cheng looked away from the room, and turned to Sancheng in a daze.

He is obviously a forensic doctor, yet he is so professional in investigating cases...

"So the prisoner is someone else?" Officer Maori said in a daze.

"That makes the most sense."

"That is to say, the prisoner knew that the corpse that committed suicide by burning charcoal would turn orange-pink, so he mixed the frozen corpse into the suicide scene?"

Police officer Mao Li was a little confused, so he interrupted Sancheng to think again: "Is this really possible?"

"If there is no autopsy, this is a perfect crime." Sancheng looked at Gao Cheng indifferently, "Detective Kido, if it were you, you should be able to profile the criminal, right?"

"Character profiling?" Gao Cheng came back to his senses, "I'm not good at this kind of thing... It should be someone who knows suicide very well and knows that there will be people who burn charcoal to commit suicide in this room. It is possible that they have logged on to that suicide website." He is very big, lives alone, has a withdrawn personality, and the age difference with the murdered girl may not be too big, and there is a high probability that they met after meeting the two girls through the Internet..."

Seeing police officers Sancheng and Maoli all looking at him, Gao Cheng had a headache and said, "There are too few clues, so I can only guess these things, but starting to investigate from that suicide website, maybe there will be something to gain."

"No," Police Officer Maori said in a daze, "It's already amazing to know so much. If there is really another girl named Xiaohua, it's like a prophet. Detective Kido knew from the beginning that Sato Masaichi was not. The murderer?"

"It's just basic logical reasoning. Isn't the detective trying to know what's inside the box before opening it?"

Gao Cheng put away the materials and smiled at Sancheng: "Please, Dr. Sancheng, I will follow up on this case. If we find the culprit quickly, the girl named Xiaohua will be less dangerous."

"I should be the one who is in trouble," Sancheng handed Gao Chengdao his business card, "I will notify you when the test results come out."

……

At night, Kido Detective Agency.

When Xiao Ai was preparing dinner, Gao Cheng was still looking at the information on the second floor, fascinated by it.

"Discussion on the use of coal to kill and commit suicide, and the forced suicide case of a family of four in Urawa City... Sansumi Mikoto?" Xiao Ai moved to the side and looked at the computer screen, "Is it the thesis of Dr. Sansumi?"

"Research Papers."

Gao Cheng rubbed his sore eyes.

"The mother mixed sleeping pills into black tea to make her husband and son fall asleep, and then lit coals indoors to fill the room with carbon monoxide. In the end, only the daughter who was sleeping in the next room was sent to the hospital in time for rescue. If it was 30 minutes later, it would have been possible. Can cause brain damage..."

"Doctor Sancheng?"

"Yes, I checked the case. The president, couple and eldest son of Yugong General Hospital died collectively in the residence in Urawa City. The only girl who survived seems to be Sancheng, who was adopted by the president's sister's family. Mikoto changed her name to Sansumi Mikoto..."

Gao Cheng put a case file faxed by the Metropolitan Police Department on the table.

"What kind of mother is able to do such a thing, I don't seem to have found out back then, but it's amazing that Dr. Sancheng didn't become a radical criminal when he encountered such a thing..."

Xiao Ai didn't read the information: "Why do you care so much about Dr. Sancheng all of a sudden?"

"Huh?" Gao Cheng was taken aback.

"Do ordinary people look up these information when they meet for the first time?"

"This is..."

Gao Cheng let go of the file under Xiao Ai's scrutinizing gaze.

"I'm just a little bit interested in cases of compulsive suicide..."

"and then?"

"Then, don't you have to investigate the case tomorrow? Although the murderer should not be Masaichi Sato, I still want to understand this kind of suicide case..."

"Really?" Xiao Ai put away her suspicious eyes for a while, "It's obviously just to participate in the forensic science exchange meeting, why did it become an investigation?"

"Isn't it just right? You can clearly see the importance of forensics in solving crimes. If you want to become the world's number one detective and maintain a [-]% detection rate, you have to keep learning."

Gao Cheng thought of Dr. Sancheng during the day, and crossed his fingers deeply: "Forensic doctors are really good. With the information they collected, it seems much easier to investigate the case. I feel that my thinking has become much clearer. I didn't know it before. Knowing that the appearance of freezing to death will be the same as that of carbon monoxide poisoning, and judging the cause of death from the hemorrhage in the heart, inferring from the concentration of carbon monoxide in the room that someone entered the room halfway, if the gastric juice detects the ingredients, maybe you can know where the girl had her last meal, and have……"

"Are you still eating?" Xiao Ai asked.

"eat."

(End of this chapter)