"This is a test report that confirms that the residual fibers on the crystal are a good match on your glove. And on this phone, there are indeed no fingerprints on you, but there are fibers on the gloves you wear. I shook it in front of his eyes, "You're smart, but what you're ignoring is that you're wearing velvet gloves, not leather gloves." ”

"You ......" Zheng Lei was speechless again.

I went on to say that Li Na was not kidnapped by him and taken to the warehouse. I went with him voluntarily, there is a small alley on Huaming Street, where there is no surveillance, the alley is extremely narrow, but the battery car can just pass.

That day, Zheng Lei did have the owner to prove that he delivered the takeaway at 4:30, but he actually took two orders, and the other one was from Boss Li's restaurant, and it was far away, and the buyer was himself.

Zheng Lei only needed to place an order with his other mobile phone when he went to deliver food that day, went back to Boss Li's store, and then said to deliver that copy. In this way, he has a witness and an alibi. This is known to the registrant who checked the number of the takeaway.

When he said this, Zheng Lei didn't talk anymore, his eyes rolled around, and he didn't know what he was thinking.

It's really easy to coax a fourteen-year-old girl away. Especially when the other party is still a friend for a long time, he often treats and sends things or something. Li Na was deceived by him into going to the warehouse, and then was tied up by Zheng Lei, who showed his fierce appearance, and imprisoned in the warehouse.

At the same time, he also made that killing device. Because he didn't intend to keep Li Na alive in the first place, I am afraid that Li Na was also killed by someone he trusted, so her soul did not give me clear instructions.

Speaking of that device, as mentioned earlier, Zheng Lei used an iron fan blade to cut off Li Na's head. In fact, the device was a bit more complicated than I thought, the hole behind the electric fan was for the iron wire to pass through, and the role of the iron wire was to pull the iron fan blade at a certain angle of inclination, and the iron fan blade was attached to the worn-out fan, but it was simply fixed. Make sure that it won't spin and fly out until the wire breaks.

In fact, I found more wires in the garbage heap, two of which showed signs of being burned by fire, and the wires themselves were strong and not easily broken. However, it can be burned with fire, and the iron wire that holds the iron fan blades in place is roasted by a tongue of fire that is not very strong like an alcohol lamp.

Above the wire, there is something like a balance held in place with more wire, with a machete at one end and an item of equal weight at the other. As long as the machete is clamped with a clamp and the blade is downward, it is good to ensure that it will not fall easily, and on the roof on the side of the machete, the mobile phone is simply fixed.

We went back last night to check the roof of the warehouse, and there were traces of clear glue. And on the ground, a small piece of wood was indeed found. This was originally very unnoticeable, but it was this piece of wood that kept the phone from falling. The ends of the wood chips are glued together with transparent glue, but they are not stuck to the roof, so that there is some space for the phone. You only need to tilt one end of the phone slightly into the air, and when a call comes, the phone will fall due to vibration.

The iron wire, which was already roasted by the flames, was about to break, and the machete lost its center of gravity on the scale and fell down because of the mobile phone. The wire breaks, and then, bam! The iron fan blades flew out.

We didn't find the machete, but we confirmed that the wire had indeed been roasted by fire and then cut by a sharp weapon. The balance is nothing more than a few branches, which are hoisted from a point in the middle with an iron wire to ensure that they do not tilt, and then a weighted object is placed on the right. Then fix the knife on the left with a hollow dry branch, of course, to meet this condition, the knife itself must have holes. This, I don't think it's difficult.

And the knife with a certain weight fixed by a hollow dead branch will crack more and more, and sooner or later it will break. If you are smashed by a mobile phone, you can break it directly. The branches had been examined, showing signs of strangulation by iron wire, and the hollow broken branches and leaves had been confirmed to have broken due to excessive weight.

Zheng Lei was right, a few branches, a worn-out mobile phone, and iron wires appeared in the garbage heap, which really didn't make people think of anything. But no one entered the warehouse, and the murderer couldn't get in, so how he killed people, these made me very concerned. So when I reasoned about the iron fan blade killing, I kept thinking about whether there was any way to make the murderer kill without being at the scene!

When I learned Zheng Lei's background information yesterday, I concluded that he was the murderer. As a high-achieving student, it is really not difficult to calculate these, so I boldly guessed that there were still tools left at the scene, and I deliberately went back with Liu Yiyi to find them last night. And there are rules for a person to deliberately stuff things into a pile of things, so it is not difficult to find them.

Zheng Lei has been behaving as usual since Li Na's disappearance, and he has no time to go to the warehouse at all. In addition to the footage captured in the surveillance, I think he was trying to confirm whether his plot was successful and whether no one really dared to enter.

Liu Yiyi and I asked people who had been there in the surveillance in the past few days, and yes, we dragged it up in the middle of the night and asked. In fact, it is best to know why you don't go in and ask the person concerned, and I haven't taken this step because I think that as long as you deduce the identity of the murderer and his method of killing, this is not a problem.

The answer was Zheng Lei's piece of wood, just big enough to fit into the takeaway box behind his electric car. He knew that there was surveillance in Boss Li's store, so as long as he was photographed taking it in, but not taking it out, he felt that no one would think of it.

In that woods, some unscrupulous guy would throw away some animal carcasses. Quite a few of them stink, as I said earlier. Then it's as simple as getting some rotten carcasses of animals and throwing them at the door of the house, and then using that wooden sign to write on it: Dispose of animal carcasses, no idlers are allowed to enter.

As long as people get closer, see the brand, and smell the smell, they naturally don't want to explore further. According to our questioning, those who were curious to look in the past answered unanimous. There is a very disgusting smell, and there are signs warning idlers not to enter.

The last question is the slightly thicker thread on Li Na's body and the lost front teeth. We also found some plastic cylinders in the garbage heap, and the display of an electronic calculator. Together, this thing is like a bomb, and the materials found are just enough to combine two fake bombs.

I think Zheng Lei deliberately told Li Na that there was a bomb, and then tied a wire to her and connected a bomb to the other end. And let her keep her balance, so that she doesn't fall to the ground and be moved, otherwise the bomb will explode, and the other is tied to her front teeth, and the other end is also connected to the so-called bomb. Then tell her not to shout for help, because if you open your mouth, you will touch that thread and the bomb will still explode.

The same fibers were found on the plastic cylinder and the display screen as on Li Na's gums, and the iron wire was not easy to tie to her teeth. Therefore, I conclude that he used this trick to deceive Li Na.

In this way, let Li Na stay obediently, not daring to move, and not daring to call for help. And he, after learning from the bugging that Li Yi called the police, became angry and made Li Na lose her life with a phone call.