Ouyang Ping and Liu Dayu were very interested in this special pair of cloth socks, and they felt that this pair of socks revealed a lot of valuable information.

Now, let's take a look at the autopsy records:

The sex of the deceased, male.

The age of the deceased was between fifty-two and fifty-five years of age.

The height of the deceased, one meter sixty-one.

There were some abrasions on the forehead, knees, shoulders and back of the deceased, which were not fatal.

There is a depression about one centimeter wide at the base of the middle finger of the deceased's left hand, the degree of depression is not deep, but the color here is different from the color of the rest of the finger, we all know that wherever the ring is bagged, such marks will be left.

There was also a depression on the deceased's right wrist about 1.5 centimeters wide - the depression was not deep, indicating that No. 2 had carried a watch with him before his death.

On the edge of the hollow of the wrist - near the palm of the hand there is a two-centimeter-long wound where the wound has coagulated the solidified blood clot, and when the glove touches the solidified blood clot, the blood clot immediately becomes powdered.

Number 2 has a thick layer of calluses on the palm and fingers, the nails of the right thumb and little finger are at least 0.4 centimeters long, and the other nails, including the nails of the left hand, are also relatively long, with some black dirt between the nails, to be precise, black soil. A corner has fallen off the nail of the left thumb, and the flesh under the nail has been exposed under the horn.

No. 2 had a total of six pockets on his body, and Liu Dayu rummaged through the six pockets, but he didn't find anything.

Needless to say, the contents of the bodies of Number One and Number Two were cleaned by the murderer.

The on-site investigation work is very simple - to be precise, the on-site investigation work has not been carried out at all, we all know that the scene is at the bottom of the stone crack, Ouyang Ping has reason to believe that at the bottom of the stone crevice, there must be something, but due to the particularity of the scene, the comrades could not go down to the bottom of the stone crevice.

The four spent a lot of time on the autopsy, and at present, the only way to obtain valid information is the autopsy.

What Ouyang Ping and his comrades didn't expect was that Yang Dafu offered to take a trip under the stone crack: "Captain Ouyang, there may be something down there, I'll go down again." ”

Ouyang Ping and Liu Dayu also firmly believed that there should be something under the stone crack.

"How's the width down there?"

"Anyway, I can go wherever I can? I really can't get down, so I'll stop. ”

"It must be very deep down there." Liu Jialu said.

"I'm afraid the length of the rope is not enough." Zhang Zifeng said.

"It's not a problem, there's a rope in the warehouse, I'll send someone to get it." The horse farm said.

Yang Dafu's proposal was in Ouyang Ping's arms. He couldn't ask for it, if he could extract some valuable objects from the bottom of the stone crack, it would be of great help to the next criminal investigation work.

"I'll go get the rope," Zhang Zifeng said, "You guys take the rope in your hand first, and I'll come when I go." Zhang Zifeng said that, and rushed down the mountain.

Liu Jialu connected the two ropes together, and combined the third thinner rope into two strands and two thicker ropes together.

The head of the horse farm measured the length of the rope with both hands, and it was about fifty meters.

How deep is the crack underneath the stone?

Ouyang Ping tied a stone wide at the end and narrow in the middle to the head of the rope, and then put the stone into the crack of the stone.