Half an hour later, the laboratory results came out, and the substance found in the deceased's colon was indeed a capsule made of resistant starch, and its structure had not been completely destroyed by fermentation.

Su Ping immediately copied the walkie-talkie and relayed the discovery to the criminal police.

Although this discovery does not seem to have much practical significance and cannot be used as an important pointing clue, it is a huge breakthrough to determine the murderer's modus operandi.

At least, they have a relatively more specific understanding of the murderer - don't look at Su Ping and Yan Zhongxin both slapped Qi Yuan in the face one after another, but the common sense that resistant starch is not easy to digest and destroy, ordinary people really don't understand.

I have returned to junior high school, but many people have forgotten this knowledge point, and when others mention it, they may have a feeling of sudden enlightenment, but no one mentions it, and it is difficult for them to remember.

It is even rarer to use it in a murder plan, such as using mosquito coils and cigarette butts to make a simple time-delay device, the principle is very simple, but few can think of it and put it into practice.

After that, Su Ping quickly held a walkie-talkie meeting and asked the public investigation team to add a condition when screening targets - at least one person in the suspect gang is a person with careful thinking, flexible thinking and a wide range of knowledge, and can be combined with the suspect's occupation to conduct a general screening and judgment.

Generally speaking, occupations that require a lot of repetitive, mechanical labor are relatively rigid in thinking. The work is relatively free and flexible, and this aspect will also be much more flexible.

Last night, he returned to his office, and Qi Yuan still followed.

Su Ping glanced up at him, sighed lightly, then shook his head, and said softly: "No wonder no matter how we discussed it before, the logic was difficult to be self-consistent, it turned out that it was because we speculated in the wrong direction from the beginning. ”

"yes." Qi Yuan sat opposite Su Ping, and also said, "Who would have thought that they didn't intend to let Cao Mingyang go at all, but to further provoke our ......"

Su Ping was slightly stunned, and then asked, "You say, what are these guys designing like this for?" Provoking us? Irritate us? ”

"If it's motivated, it's a deep hatred for us." Qi Yuan looked out the window.

At this moment, Xun Mu suddenly ran into Su Ping's office, and said with some excitement: "Old Su, maybe the direction of our previous investigation is wrong, and the target of the murderer is probably not Chu Xunliang and my brother-in-law, but the 'police'."

The two of them were just unlucky and were kidnapped by the murderer, but, at that time, in that place, no matter who they met, as long as they were wearing police uniforms, I was afraid that they would be arrested and killed. ”

Su Ping raised his eyebrows: "You've been eavesdropping outside?" ”

"What do you mean by eavesdropping?" Xun Mu rolled his eyes: "I want to know what I need to eavesdrop?" ”

"Let's not talk about that." Su Ping stood up, walked to the side of the bed, opened the window, then ripped off his mask, lit a cigarette, turned his back to the two of them, and asked, "Ask you a question." Your cousin was divorced, wasn't she? ”

"Well, that's right." Xun Mu bowed his head lightly, did not deny it, and responded directly.

"The reason for divorce is domestic violence?"

"Yes," Xun Mu walked to another window, also pulled off his mask, lit a cigarette, and said: "It happened more than ten or twenty years ago, I don't remember the specific time very clearly, I just had three or four years from the police at that time, and I went to the grassroots police station to train, you know this." ”

"Tell me about it?"

"There's not much to say." Xun Mu shook his head and said, "Regarding the matter itself, the impression is quite impressive.

I was on night duty at the time, and suddenly I received a call from my sister, asking me if it was inconvenient, and she was still crying there, so I was anxious and asked her what was wrong, and then said that I was at the police station and asked her to come over - she didn't live very far away at the time, and she took a taxi and came.

As a result, when I arrived at the police station, I saw that her face was bruised, the corners of her mouth were broken, and Lao Gao, who had a swollen face on one side, was angry at that time, and asked her what was going on, who beat her, and she cried and said that it was her brother-in-law.

I forced myself to calm down, got a colleague to help me file a case, and immediately rushed to my brother-in-law's house and arrested the bastard.

That was the first time I used my connections, ran relationships, found many people I could find, and convicted him of intentional injury, and then persuaded my sister to divorce him, which is probably the case. ”

Su Ping snorted, and then asked, "What happened later?" Do you still have an impression of him? Name, height, figure, and general appearance. ”

"I vaguely remember a little." Xun Mu thought for a while and said: "The word is not high, about one meter seventy-five, it is not strong, and the temperament is still a little cowardly, so it can only bully women who are not superior in terms of bullying power at all. ”

Su Ping nodded, and then asked, "Do you remember the name?" ”

"I've got to think about that...... Call...... The surname is Wei, and there seems to be a word Hao in the name, but I can't remember which Hao. Xun Mu said, and then shrugged: "Wouldn't it be better for you to dig out the case files of the year and check them?" My sister's name is Xun Jingchu, you go to find it according to the party. ”

"It's too much work." Su Ping rolled his eyes: "Most of the case files from twenty years ago were not entered into the electronic database, and there was no way to search by keywords, so they could only be turned through manually, and the ghost knows when they would be turned over." ”

"But the court trial records, at least the criminal case file has been completed and stored electronically." Xun Mu said: "Why don't you just apply for a colleague over there to assist in the investigation." ”

"yes." Su Ping snuffed out the cigarette butt, spit out the last puff of smoke, then put on the mask, nodded lightly and looked at Qi Yuan: "Xiao Qi, I'll leave this matter to you." ”

"Huh? Oh good! Qi Yuan hurriedly nodded.

Su Ping looked at Xun Mu again and said softly, "What, regain your senses and come out?" ”

Xun Mu didn't answer directly, his eyes looked into the distance.

After a moment of silence, he said: "Yes, the person was killed, the thing has happened, except for the initial little unacceptable and a little confused, it slowly eased up, and all that was left was endless anger......"

"yes, anger." Su Ping snorted and said, "If you kill someone in front of us, if you are not angry, just take off your police uniform and go home to be a rice worm." ”

Xun Mu didn't answer.

After a short while, he asked, "What, you suspect my cousin's ex-husband?" ”

"I discussed it with Xiao Qi." Su Ping said: "He thinks that although this person may commit a crime, his motive is far-fetched, and I think so too." It's just that there are no clues left and right at the moment, so it's better to try it and try your luck. ”

"When did you start trying your luck when you solved the case?" Xun Mu chuckled: "What, what do you think, even I am reluctant to say?" ”