Jiang Xu quietly looked at Qiao Jing in front of him and listened to him.

Qiao Jing was not polite, and said lightly.

"First of all, the strange thing about these cases is the motive, we have no way of knowing for the time being what the murderer wanted to kill the deceased, but one thing is certain, that is, the murderer, only possible for two reasons, first, he knew early on that the deceased would come here, and he also came with the deceased, waiting for the opportunity to do it; second, it is indiscriminate to commit the crime, that is, in fact, it does not matter to the murderer who the deceased is, the important thing is that he wants to kill. ”

Jiang Xu looked at Qiao Jing incredulously, because he really didn't expect it at this level, he always felt that the reason why the murderer would hurt the deceased so cruelly must have something to do with the deceased.

Qiao Jing saw Jiang Xu's expression and smiled.

"Of course, that's just my judgment as a psychiatrist. From the perspective of criminal psychology alone, there must be some problems in the psychology of the murderer, which have been implicit for a long time. For example, when he saw this person, he thought of some painful experiences, so he killed him. There is also a possibility that there was a festival between the deceased and the murderer, and this festival was so big that the murderer wanted to kill the deceased so brutally, if this is the case, I think this festival, through the background investigation of the deceased, should be screened out soon. ”

Jiang Xu got up and nodded lightly.

"That's right, if the festival is so deep, it is impossible for no one around to know about it, generally speaking, before the murderer will kill the killer, he will definitely go to tear the deceased face to face on the grievances of the two, and there is no tearing process, and the killer will be directly killed, which is an impossible crime in itself. ”

Qiao Jing nodded, this is what he wanted to express.

That is to say, the murderer and the deceased must have been in contact at any level, and as long as the two are in contact, it is possible for others to know. ”

"Even if the murderer did not know the deceased until he arrived here, the two of them either had an argument in front of everyone, or they had met in private, and if they had met in private, then, in the group activities, there were scattered activities, and the companions who came with the deceased should also know. ”

While the two were talking, Wu Lei had already come back, panting and running in front of them.

"Captain Yang has gathered all the people here, there are a total of four groups of teams who come here for activities, two groups of teachers from the school with students, come to do team building, and two groups are company parties who come here for annual vacation. Captain Yang separated these four groups of people, requisitioned the remaining empty rooms, and interrogated them, let me come and ask you if you want to listen to the interrogation?"

Jiang Xu nodded immediately, after all, there is a shortage of manpower now, and it is difficult to ask one by one by relying on Su Yang and Yang Wen alone.

Jiang Xu and Qiao Jing glanced at each other, and the two followed Wu Lei back to the residence quickly.

A group of people were sitting in the living room of the house where they lived, whispering and talking to each other.

As soon as he walked in, Qiao Jing immediately frowned.

Jiang Xu noticed that Qiao Jing's expression was a little strange, and then looked back at him.

"What's wrong? I don't think I'll find something as soon as I come in!"

Qiao Jing didn't speak, nor did he look at him, but looked at the ground under his feet.

Jiang Xu followed his eyes and looked at the ground, there were some footprints on the ground, Jiang Xu asked in a puzzled whisper.

"What's wrong?"

Qiao Jing squatted down, touched a few rows of footprints on the ground, and then took a step back and looked at his feet, but there were no footprints under his feet, Qiao Jing stood up and looked at Wu Lei.

"Are these footprints left by them?"

Wu Lei nodded at a loss.

Jiang Xu was a little puzzled, why did he ask like this, and then looked at the group of people, that group of people didn't look strange, judging from their age, they should be the people who went out on annual leave in Wu Lei's mouth.

"What's wrong with these footprints?"

Qiao Jing smiled and said.

"No, I don't have any questions, but I have some questions. We had just walked the road on both sides of the villa, but when we came back, we left no footprints, why did they leave such obvious footprints in the same area as ours? Could it be that they had gone into the water or stepped on something that could easily cling to their shoes? ”

Jiang Xu was a little curious by what he said, and raised his foot to look at his feet.

Indeed, although they had just walked through the dirt hillside and walked on the plank road, they had not left any marks under their feet!

Jiang Xu was a little incredible.

"Will there be a problem for us, generally walking on mountain roads, there will always be some dirt or something!"

Jiang Xu actually didn't know why Qiao Jing was concerned about this issue.

Qiao Jing turned around and looked at Jiang Xu!

"If it's our problem, then why didn't the murderer's footprints leave in the wooden house?"

Jiang Xu suddenly realized, and then looked at Qiao Jing in a daze.

"No footprints left ......"

Qiao Jing nodded.

"We all went inside the house, not to mention that there were no footprints of us inside, not even the murderer's. You saw the killer when he came out of the house, did he wear shoe covers?"

Jiang Xu raised his head and thought about it, and shook his head affirmatively.

"I'm sure he didn't wear shoe covers, the kind of shoes he wore were very old-fashioned sneakers, and they looked tattered and old. ”

Qiao Jing asked again.

"Did you feel anything strange when he walked, for example, that it made people feel like he was wobbly, or that the shoes didn't fit in particular?"

Jiang Xu shook his head, his eyes a little confused

"I didn't notice this, mainly because I was attracted by a smell, and all my attention at that time was on what he was wearing, and the smell. So, didn't notice that. ”

Until now, Jiang Xu still didn't understand why Qiao Jing suddenly paid attention to the issue of footprints.

Qiao Jing looked at the incomprehensible expression on Jiang Xu's face and said lightly.

"In fact, the problem of footprints is not very related to these cases, but the problem is that if the murderer only kills on impulse, then no matter what, there should be traces of the murderer in the wooden house, whether it is a handprint or a footprint. You've also checked with multi-band lights, and have you found any strange marks?"

Jiang Xu shook his head.

"No, I also find it strange that there are so many blood stains in the house, why there is no mark of the murderer. Besides, the room looked like it hadn't been used for a long time, and if there were any fresh marks left, the forensic staff must have found it at the time, and the report hadn't come back yet, so we had no way of knowing what it was. ”

When Jiang Xu said this, Qiao Jing fell into deep thought.

Seeing that Qiao Jing didn't speak for a long time, Jiang Xu looked back.

With just one glance, he instantly held his breath and felt a chill down his spine, because the expression on Qiao Jing's face made Jiang Xu feel familiar.