More brutal than criminals, is he really a policeman?

Those who work in criminal investigation are familiar with hydroxide.

When used in large quantities and with hot water, bones can be quickly dissolved.

Sure enough, the next second Zhao Zhen said: "According to the detected ingredients, it is analyzed as a pipe unclogging agent, which contains sodium hydroxide, a strong alkali."

"The calcium in human bones is mainly composed of calcium carbonate and other calcium salts. After sodium hydroxide is heated, it will react chemically with calcium, causing the calcium salt to decompose."

After that, Zhao Zhen took a piece of chicken wing to chew.

Yu Jing looked at him quietly, "Forensic Doctor Zhao, don't you know not to talk about this kind of thing when eating? It will lose your appetite."

"Really? I feel okay."

Zhao Zhen blinked and deliberately said: "At least I can eat two more bowls of curry chicken nuggets."

"No, is it appropriate for you to eat such a heavy taste so early in the morning?" Yu Jing sighed, looking at the pork sausage in his bowl and suddenly lost his appetite, "The point is where did you find the curry chicken nuggets? Isn't this a dish for lunch?"

"The aunt in the cafeteria made it for me in advance, do you want it?"

Every word of Zhao Zhen is quite irritating.

Jiang Yang laughed and returned to the topic: "Pipe unclogging agents are generally used for kitchen sewer blockages, and cannot be used for bathroom toilets. The body parts we salvaged from the middle and lower reaches of Tongjiang River weighed less than 100 kilograms in total."

"But according to the physical examination report of the deceased and his mental state when he appeared in front of people for the last time before his death, we can know that the deceased weighed at least 115 kilograms."

"I thought the remaining meat parts sank in Tongjiang River or were eaten by small fish. Now it seems that some of them should be in the toilet of the apartment room and dissolved by the murderer."

The flesh and bones are decomposed, so naturally no DNA can be found.

Seeing the two people lost in thought, Jiang Yang said: "In ordinary families, pipe unclogging agents are not very common and necessary items. Most people will only think of buying them when there is a problem, or directly report to the property management, and professionals will come to unblock them."

"The deceased in this case lived in a hotel-style apartment, and the kitchen was in the lobby of the floor, which was shared. The usual cleaning and maintenance were handled by the hotel, and the residents did not need to bear it themselves."

"So, there should not be such things in the deceased's room."

Jiang Yang concluded: "This bottle of pipe unclogging agent was most likely brought in by the murderer. It was a planned and premeditated murder case."

After sorting out his thoughts, Yu Jing nodded in agreement, but he had a question.

"But since the murderer beat the body of the deceased into pieces, why didn't he just throw them all into the Tongjiang River? He had to take out some of them separately. Aren't you afraid of being discovered?"

After half a year, it is too late to check the hotel sewer.

The traces left behind have long been washed away by various sewage.

This is because the murderer was lucky. The body of the deceased was found late, and the apartment did not care about the whereabouts of the residents.

What if it doesn't go well?

What if the murderer is found the next day, and the traces are still there, wouldn't that be a trap?

Of the two methods, throwing it into the sea is safer.

Zhao Zhen didn't quite understand this point, and felt it was unnecessary.

Jiang Yang had his own opinion.

"Maybe the murderer had to destroy it on the spot?"

He said: "According to common sense, the murderer must have cleaned up the traces immediately, and there must be evidence for the police to find him."

"Hair, dandruff, or blood."

Jiang Yang speculated: "The deceased may have had an argument with the murderer, scratched the other's skin with his fingernails, or bit the murderer?"

"As for why the meat grinder left an arm almost intact, it is probably because it was in a hurry and afraid of being discovered? This shows that the murderer's location is not so desolate that no one is there."

While he was talking, other people from the team came to the cafeteria to get food one after another, and gathered around to listen to the general situation.

With Yu Jing's supplement and Zhao Zhen's affirmation, everyone understood the new progress of the case.

"Brother Yang is quite awesome. You figured out so many things while I was at home taking a nap?" Gao Jinyang applauded and took a sausage from Yu Jing's bowl.

"What are you doing? If you want to eat, why don't you go there by yourself!"

The canteen aunt bought the pork hind leg meat and added some chili peppers. It was fragrant and delicious.

Yu Jing would take it every time he saw it.

"I'm helping you share the burden, Old Yu. Didn't you say you couldn't eat meat? I have a good tolerance. Not to mention eating meat, I can even make dumplings!"

As he said that, Gao Jinyang quickly took two more and didn't forget to give one to Jiang Yang.

"... Damn!"

Yu Jing had a point but couldn't explain it.

"I'm kidding. How can a policeman like me not be able to eat meat like this?!"

At this point, it was too late.

He could only protect the few remaining sausages with resentment.

"It's just speculation," Jiang Yang didn't bother to be polite with them, and ate the sausage in just a few bites. "The biggest doubt at the moment is the murderer's motive for killing."

Yao Yeyun's interpersonal relationships are so clean that they are abnormal.

Let alone grudges, there are no disputes.

Coworkers in the law firm look down on her at most, and there is no grudge.

Who would make enemies with people with poor performance?

There is no competitive relationship, and people don't even look at Yao Yeyun.

Who would take the initiative to come to her door and hate her so much that they premeditatedly kill her?

Zeng Gaojie sat down opposite Jiang Yang, while picking at the preserved egg and shredded chicken porridge in his mouth, he said: "Could it be a random murder case? Who does he kill whoever he doesn't like?"

"The possibility is very low."

Jiang Yang shook his head.

"With Yao Yeyun's personality, she would not let anyone enter her territory casually. Especially in the apartment where she lives alone. By the way, have you investigated all her clients?"

"I checked, nothing special."

Zeng Gaojie replied: "They are all trivial cases. There are divorce lawsuits, work injury cases, reputation rights and claims for compensation."

"The amount is not large, ranging from a few hundred to a few thousand. I asked their law firm, the deceased's business ability is weak, and the commissions assigned to her are all unwanted. And legal aid is the main thing, big cases and profitable cases are given to other people."

For cases with legal aid, lawyers do not get any fees, it is completely free.

Sister Wang added: "I called them one by one, and I forgot the name of the deceased for several of them. I am not familiar with the others, and there is only one contact number. There was no contact after the trial. The two sides cooperated happily and there was no dispute, so the murderer is unlikely to be the client of the deceased."

After checking, the only case that met most of the suspicions was the divorce case of Zhang Yixuan and Huang Siyan.

But both of them have clear alibis.

More importantly, Jiang Yang has confirmed it with the crime radar.

He took the last bite and asked everyone to go back to the office.

"Everyone, please work harder and look for new clues," Jiang Yang had a rare headache and regretted not increasing the radar's detection range. "Let's go to the law firm again in the afternoon to see if there is anything missing."

Everyone responded.

Jiang Yang frowned and thought, and suddenly, he thought of something and stopped abruptly.

"The small meat workshop has not been thoroughly investigated."