Chapter 1050

"Jiang Yuan, I have organized all the business trip records of Victim No. 1. There are quite a few places she went to, and the frequency is not low. Each time she went, it was for more than three days, and seven days was more common."

In the corridor, Liu Jinghui introduced the situation to Jiang Yuan while walking.

Cao Chujun took people to find the divorced suspect, but the task force would not stop because of this. Unless it was determined that the killer had been caught, the task force couldn't stop and wait every time there was a valuable lead.

Liu Jinghui was engaged in reasoning anyway, and was even more famous for reasoning until the last moment. In fact, he once had a situation where the criminal police team had already arrested a suspect, and after the task force announced the suspension of work, he still kept reasoning, eventually proving that this suspect was not the killer. It was just because such stories were relatively sensitive, and it was not easy to brag about them in the industry.

No matter what, Liu Jinghui was a criminal policeman with his own rhythm and work mode, even in Jiang Yuan's cold case team.

Jiang Yuan was already familiar with this cooperation mode with Liu Jinghui. He took the records Liu Jinghui organized and said while walking: "More than three days each time, is there any particular reason?"

"Their unit has continuous business trips for three days, and they can take an extra day off when they come back, because business trips are equivalent to overtime." Liu Jinghui was trying his best to let Jiang Yuan understand the environment the suspect was in when the case occurred, and then speculated: "I think it was still for that kind of thing. Having an extra day off meant being able to play for an extra day. She wasn't lonely when she went on business trips, and her schedule was probably packed."

"Then did you find her schedule?" Jiang Yuan suddenly thought: "If her schedule was so full, there must be something to record it."

"It was found long ago. She made some of her own codes, and there were no names or anything. I asked someone to look at it, and it is guessed that it is mainly time."

Jiang Yuan raised his eyebrows: "I also understand codes."

"Oh... right, you also understand codes. Then I'll bring it over for you to see later." Liu Jinghui had seen it before, and forgetting it was also true. He wasn't Yu Wenshu and couldn't possibly take notes for fun every day, and Jiang Yuan had too many skills. The 'Flower of Criminal Science' was about the same.

Jiang Yuan responded without being too excited.

Victim No. 1 Zhao Qian's biggest secret should be her unique sexual habits. Her work didn't have any confidential content, and her family background didn't either. What the codes could protect was probably her life that was now completely open. If it was just recording some times and dates, it wouldn't actually be of any help to the case.

Interrogation Center.

Cao Chujun sat outside the fence, smoking a clearly sourced Zhonghua cigarette while watching the suspect in the iron fence press his fingerprints.

Only to see an officer grab the suspect's hand and roll it back and forth on the fingerprint collection instrument.

"How is it?" Jiang Yuan and Liu Jinghui walked in together, followed by Mu Zhiyang and others with bulging waists.

Cao Chujun's eye bags were shaking as he watched. There were big shots who kept Type 79s in their trunks, but that belonged to the legendary level, and it was the greatest demand for personal interest and showing off.

That Jiang Yuan actually had a demand for the Type 79 was something Cao Chujun had never thought of.

Cao Chujun withdrew his gaze and answered the two people's questions: "The suspect is calm and composed, hasn't spoken all along, and didn't even say a word when asked, which is not very normal."

"Does the suspect have a case on him?" Liu Jinghui immediately thought of this point and asked: "Did you tell him what case it is?"

"Of course not, this kind of basic thing..." Cao Chujun paused and added: "However, when we stopped the suspect to arrest him, he neither resisted nor ran away. Judging from his resume, he hasn't received special training, let alone a military background. How he completed the triple killing still needs to be considered..."

"Meaning, he might have a case on his back, but it's not this case?" Liu Jinghui understood.

Cao Chujun nodded and said: "In my experience, someone who committed such a major case should be a frightened bird. Seeing the police come to the door, either running or jumping, the situation of being quietly arrested and then resisting interrogation... I can't say it doesn't exist, but it's still relatively special. The situation of this suspect... I think we shouldn't put our expectations too high."

Although he knew that Jiang Yuan had a judgment on the suspect's body shape and posture based on bloodstain analysis, he didn't know to what extent Jiang Yuan had refined it.

And as far as other evidence is concerned, the most important point is to have superior physical fitness and technology, and also to have professional-level knife-using technology, and even a certain ability to kill. This requirement is actually the same as an alibi; if you don't have it, you don't have it, and if you don't have it, you can't presume him to be the killer.

Liu Jinghui understood Cao Chujun's thoughts, nodded slightly, and said: "Just one of the suspects. I actually considered it before. If the investigation here at Zhao Qian's side is not smooth, we can further investigate Victim No. 2 and No. 3."

Jiang Yuan nodded and said: "It's also a choice. There should be officers following up on the leads of these two people too, right?"

"Yes. But these two people also played very wildly. Preliminary estimates are that there must be dozens of direct contacts. To investigate all of them, just those few people are certainly not enough..."

"No need to think so much for now. I think the suspect brought back by Team Leader Cao looks very suspicious." Jiang Yuan pouted.

"Hope so..."

"Height is, arm span is too, especially the arm span. The error is no more than two centimeters, which is still quite rare." Jiang Yuan's answer was a bit technically non-technical.

Cao Chujun was stunned: "Is the two-centimeter difference literal? Is it so accurate?"

"The arm span calculation is very accurate, unless the killer has some special habits of holding the knife. Currently, it is suitable. Height 1.8 meters, arm span 183 centimeters, basically all fit. If he deliberately retracted it, he should have retracted more than a few centimeters. It is very likely he would have retracted more than ten centimeters..."

"No, I mean, then we just measure the suspect's arm span?"

"No need." Liu Jinghui also withdrew several questions from the shock and said: "A single factor always has inaccurate places. It's quite good now. However, this... Lu Jianchun, does the arm span fit completely?"

"The arm span fits completely, the height fits completely, and I think the shoulder width also fits. Let someone measure the hip circumference and shoulder thickness again." Jiang Yuan spoke across the iron fence, his voice not loud.

At this time, Lu Jianchun, who was being properly arranged by two criminal police officers, seemed to have heard something, turned his head sharply, and stared at Jiang Yuan with shrinking pupils.

Mu Zhiyang stepped forward subconsciously.

Lu Jianchun turned his head back again.

Soon, the data on hip circumference and shoulder thickness were reported back, not only within the range interval but also very consistent with the range Jiang Yuan had delineated.

"Can this be considered identifying the same person?" Cao Chujun was a bit confused, then looked up at Lu Jianchun's back, who had already been pushed into the interrogation room, and couldn't help but add: "Does he have the ability to commit this case?"

"This depends on your in-depth investigation." Jiang Yuan indeed couldn't guarantee it 100%. This thing is different from DNA. The possibility of coincidence does indeed exist, it's just that the probability is very low.