Through the splashing of blood and the cut of the wound, I determined that Feng Chicheng was killed by a throwing knife, and Lao Lu agreed, but Tang Zhenguo raised a point worth thinking about. He said that it is impossible to practice the flying knife technique to kill people with a single knife, and it must be achieved through very professional and rigorous long-term training.

I asked, "Do you know who has that ability?" ”

Tang Zhenguo shook his head and said, "Among the people I know, except for myself and Tang Zhijie, I really can't think of anyone else. ”

"Hmm!" I nodded. Thinking about Tang Zhenguo's words, of course Tang Zhenguo will never be the murderer of Feng Chicheng, he has the most perfect alibi, that is me. What about Tang Zhijie? What is the connection between a knifeman in a local circus and a Chinese-American who has just returned to China? Or is there a third knife hand we don't know about? It's hard to draw conclusions now.

After that, I walked around the living room of this villa, which was about 70 square meters, and based on the location where the deceased fell, I deduced the place where the murderer released the murder weapon.

About 4 meters away from the murderer, there is a floor-to-ceiling window, and in front of the window hangs a beautiful and heavy curtain, which hangs all the way to the ground, and it is extremely difficult to find if anyone is hiding behind.

So I said to Lao Lu: "Look at that curtain, the murderer is likely to be hiding behind the curtain, waiting for the opportunity, and then suddenly jumped out and dealt a fatal blow to the deceased." ”

Lao Lu then walked to the curtain, opened it and looked at it, and said, "This curtain is not transparent, how can the murderer know that the victim is turning his back on him?" ”

I said, "This means that there is an accomplice, this man must have known the deceased, and the two are likely to be talking in the living room, and when the deceased has his back to the curtains, the accomplice can alert the murderer by coughing or other agreed sounds." At this point, the murderer jumped out of the curtain and killed again. ”

"Could it be that the murderer is alone, when he shows that he wants to kill, the deceased is frightened, turns and runs away, and the murderer releases a throwing knife behind him to deliver a fatal blow. Don't you see the direction of the deceased lying down, facing the gate? Lao Lu questioned.

I said, "That's what I've thought about too." However, if you look at it, the deceased's lying position is obviously a natural fall to the ground after losing consciousness, his hands are close to his torso, and his feet are together, which shows that he fell to the ground while standing. There is no sign of panic on the face, indicating that he lost consciousness in a very short period of time, so the facial expression is relatively normal. These are good illustrations of the fact that the deceased did not run and was frightened before he died. ”

Lao Lu said: "Then there are at least two more murderers in this case." ”

I said, "Yes." And these people were very careful, as you said, they did not leave footprints in the villa, and even after the death of the victim, they did not step on the blood stained by the deceased around. We've been careful, but to examine the body, we still inadvertently step on the blood stains around it. So the question is, there was no murder weapon at the scene, and by what means did the murderer take away the murder weapon without stepping on the blood stains on the ground? If you take the murder weapon directly with your hands, you can see these blood stains splashed on the ground, no matter which direction you stand, you will step on the blood stains! ”

Lao Lu looked at it and said, "It is true that the murder weapon cannot be close to the corpse without leaving traces. ”

Tang Zhenguo came up and said, "Could it be stepping on the back of the deceased?" ”

I shook my head and said, "It's even more impossible, not to mention that there are blood stains on the deceased's back, just look at the black tweed coat worn by the deceased, and the stampede marks can easily be reflected on this clothes." ”

Tang Zhenguo nodded, and said, "I know a way to retrieve the flying knife without using my hands." ”

I said, "Tell me about it!" ”

Tang Zhenguo said: "When we practice flying knives, we will practice catching flying knives at the same time, but how can a person practice catching flying knives? So we twisted three sturdy soft ropes into a rope and tied them to the handle of the flying knife with our unique knotting method, so that the flying knife could be thrown out by itself and pulled back from the target, and at the same time practiced catching the flying knife. ”

Lao Lu hurriedly said: "Oh, it is very likely that the murder weapon was also pulled back like this." ”

Tang Zhenguo's statement reminded me, and I quickly looked at the blood splattered again, and this statement was confirmed. Because there are indeed some different blood spills from the wound to the back, which are like the splashes of water when you put one end of the cloth strip in a basin full of water, and then drag the cloth strip out of the basin with force.

In this way, the method of murder and the method of recovering the murder weapon have been solved. But there was no trace of the murderer in the house, which was a headache.

I am not a person who gives up lightly, and Lokar's law of material exchange tells us that as long as the perpetrator commits the crime, he will inevitably act directly or indirectly on the object of the violation and its surroundings at the crime scene, and will consciously or unconsciously leave traces.

There are no traces left inside the house, so what about the outside? Lao Lu said that no suspicious footprints were found in the courtyard, could it be that they flew in, this is obviously impossible. Well, footprints I don't know how the killer was hidden right now, but there is one trace that certainly can't be hidden, and that is the wheel prints, unless they are walking up the hill.

I walked out of the villa and out of the fence, the clearing was mottled with the marks of many wheels. I squatted down, comparing and eliminating the on-site vehicles one by one, and finally, I found a very new wheel mark that was different from the on-site car. The end of the mark in the clearing had been blocked by a police car, and I asked the car to move out of the way because I was going to find the shoe prints around me based on the wheel track.

When the police car moved away, the mud was already very messy, and the footprints and car marks were staggered, especially the car marks, and the car marks of the rear car almost crushed and covered all the car marks in front. However, the footprints around are still very clear, there are a few small footprints that interest me very much, I measured it, the footprints are 24.7 cm long, it is estimated that this person's height will not exceed 160 cm, it should be about 158 cm, it is very likely to be a woman, of course, it is not excluded that small men and minors. The position where this footprint appeared was on the left side of the car mark, almost at the end of the car mark, then this small footprint must have been left by the driver, so minors are excluded. So I shouted to my surroundings, "Is there a female driver or a male driver under 160 cm tall?" ”

The police officers exchanged a bit, and there was no one who met, it seems that this was left by the person who came up before.

But the strange thing is that this little footprint disappeared after a few turns. However, among the chaotic footprints next to me, I found a pair of deep footprints, which obviously went back and forth. The footprint is 29.1 centimeters long, and the height is inferred to be around 176, which is inferred from the length of the stride, and it is a man.

Following the pair of footprints, I walked along the fence wall, and when I went around to the back of the villa, I found a locked back door, and the footprints disappeared at the same time. Apparently, someone entered through this back door.

I hurriedly trotted all the way through the fence gate into the yard, bypassed the villa, and found this back door. The back door is less than three meters away from the marble pavement of the villa, and the path that connects the back door to the marble pavement of the villa is a cobblestone path, which is difficult to leave footprints, and even if it does, it is incomplete, and the path has been washed with water.

Looking at all this, I smiled. I thought: Although the criminals tried their best to cover up the footprints in the villa, but they couldn't cover the footprints on the muddy ground outside the villa, it is estimated that they have a fluke mentality in their hearts, as long as they do not find traces of crime in the villa, traces in other places, it is difficult for the police to find them. How stupid.

So I called Lao Lu, pointed to the car marks, small footprints and deep footprints I found, and said: "These three traces must be recorded, and they are the most important evidence at the scene left by the criminals." And judging by the trajectory of the criminal's movement into the villa. It was a man who was more than 176 cm tall and carried a woman about 158 cm tall into the house, and I would say that it was a woman on his back, because a man carried another small man into the house, and I don't think it was reasonable for a man to carry a woman into the house. To finally confirm the gender of the little man, you can show the little footprints to Mr. Wang. ”

Lao Lu nodded.

I continued: "One more thing, their trajectory is clear, very directed, obviously familiar with this villa. The search for the killer can be carried out around the people associated with the villa. Of course, everyone knows who Feng Chicheng's death is most beneficial. ”

Lao Lu is an anxious man, he heard me say this, and hurriedly called the housekeeper of the 'Fengzhuang' villa and asked, "What is the height of your second son and third lady?" ”

The housekeeper frowned and said, "I haven't measured it, how do I know?" ”

Lao Lu said impatiently: "Tell me a rough idea." ”

The housekeeper said: "The third lady is about 1.6 meters, and the second son is a little shorter than him." The housekeeper pointed at Tang Zhenguo and said.

Lao Lu wiped his chin and nodded.

I took the opportunity to ask the butler, "Are you generally taking care of this villa?" ”

The housekeeper nodded and said, "Yes, I usually come up every other day to take a look, this is what the old man told me before, ventilating the villa, cleaning and the like, it must be implemented." ”

I asked, "This villa is obviously used for summer escape, who else has the key here?" ”

The housekeeper said: "In addition to the eldest son who lives in the United States, the second son and the third lady have keys. ”

"Where were you yesterday?"

"Yesterday I was at the bottom of the mountain to deal with the afterlife of the master."

"Do you know what the second son and the third miss were doing yesterday?"

"I didn't see them in the mourning hall, they have been quite tired lately, so they should rest at home."

"Where do they live?"

"Their homes are all in Chongqing, because the old man passed away before returning to Wanzhou, the second young master doesn't know where to live, it is estimated that it is a hotel. The young lady lived in the villa at the bottom of the mountain. ”

"The exact location of the villa."

"Haojue Garden!"