Guo Lao's prompt provided a path for the comrades to crack the case -- a very important path.

Regarding the second question, Che Huating said: "During the period when the surname Ma rented No. 157, there must be a time when other houses are vacant, because the house at No. 157 is different from other people's houses, and those who want to rent a house will no longer rent a house at No. 157 as long as they inquire among the neighbors, only those who can't find a house for a while and are in a hurry to move will reluctantly live in No. 157 for a while, and they continue to look for a suitable house while living, as long as they find a suitable house, They will move out, and in order to settle the rent, they will usually live for two months - some for less than two months, or more than two months, but they will pay the rent for two months. ”

"When the surname Ma lived in No. 157 for the first time, I really can't remember whether the other houses were rented out, because my father often intervened in this matter, and I asked less, but the second time the surname Ma lived in No. 157, I remember very clearly that when the surname Ma lived in No. 157, the two east wings were already occupied, so the surname Ma lived in the two west wings - he originally wanted to rent two east wings - the first time, he rented two east wings. The second time, not long after the surname Ma moved into No. 157, another family moved out, and after that, several people came to see the house, and two people said that they wanted to rent, but somehow, suddenly they didn't come. At that time, my father had already 'run away from home', and I was in charge of renting the house alone, so I was very impressed. ”

"How long have the two East Wings been idle?"

"More than a month. After the departure of the surnamed Ma, the four houses were quickly rented out. ”

According to Guo Lao's analysis, the purpose of the second entry of the surnamed Ma into No. 157 was to smash the bones of the connecting part of the kneecap and the calf bone, and change Che Rengui's height, so as to completely eliminate all traces of Che Rengui. Comparatively speaking, the second time was much simpler than the first, but no matter how simple, No. 157 could not have other residents.

Regarding the third question, Che Huating said: "I collected the rent, but my father received the surname Ma. I already remembered that my father had been to No. 157 several times since the couple had moved into No. 157, and at that time, I had not thought about it - in fact, I should have thought in this way, and with my father's temperament, he could not have thought of such a beautiful and coquettish woman. ”

"In addition to being pretty, do you think that woman is coquettish?"

"Yes, I have never seen such a beautiful woman, except for the plump body and white skin, those two pairs of eyes alone are enough to seduce the soul. The woman was also dressed in a revealing outfit. ”

"That morning, after I broke up with my father, he finished his breakfast and probably went to number 157." Che Lao Boulevard.

"Captain Ouyang Ping, I remember, when my father disappeared, there was only a family surnamed Ma living in No. 157. It must have been—the man surnamed Ma used a woman as bait to first hook my father's soul, and then—the man surnamed Ma closed the gate of No. 157, so that the neighbors would not hear any movement. No one will notice that he built the wall, and the pile of bricks has been abandoned for many years, and we won't care, and if it weren't for something like this, we wouldn't even remember the pile of bricks. ”