"On the night of January 28, in addition to the sound of the door opening, I also heard footsteps and the sound of people talking."

"Is it about three o'clock?"

"It's about three o'clock."

"Is the sound of the door opening coming from Ran Shimei's house, or is it the back door of the third entry?"

"It's not Aunt Ran's house, it's Grandpa Jiang's house. It's not like the sound of opening a back door. Because the sound of Aunt Ran's house and Grandpa Jiang's house opening the door is relatively shrill, the sound of the back door is relatively deep. ”

"Yes, Xiao Man is right, the door nest of Ran Shimei's house and Jiang Feng's house is made of wood, when the door is opened and closed, the sound is relatively sharp, and it sounds especially obvious at night, the door nest of the back gate is a green brick, and when the door shaft rotates on it, the sound is muffled."

"Did the door ring twice?"

"Yes."

"How long is the interval?"

"Two or three minutes. When I was just urinating, the door rang once, and when I finished urinating, it rang again. ”

Under normal circumstances, the time for a person to urinate is about one minute, and when he gets up at night to urinate, because the urine is held for a long time, the excretion is not very smooth, and the time does take two or three minutes.

"When you got up to urinate, did you turn on the light?"

"No, the toilet is next to the bed."

"Do the footsteps sound from far to near, or from near to far?"

"The footsteps were very small and slow, and when you heard it, you knew that you were deliberately slowing down. Whether it's from far or near, or from near to far, I can't tell. ”

The information provided by Xie Xiaoman was enough for Ouyang Ping and his comrades to ponder for a while.

According to the analysis of the case, the two door rings should be the sound of the door of Ran Shimei's house.

Combined with the 30,000 yuan in the silver box, especially the wrench, Ran Shimei is one of the murderers in this murder of her father, which is already an indisputable fact. Ran Shimei alone could not carry out this case of murdering her father for money, and the participants could only be Ran Shixiong and Ran Shijie, two brothers. Dogs will protect food when eating, and people will deny their relatives when faced with money. Ran Ruzhai didn't want to see his three children at a very early age, and the three Ran brothers and sisters had a long-standing grudge. A locked door has fundamentally cut off the relationship between father and son. In such a historical background, it is logical to explain the behavior of the three Ran brothers and sisters seeking money and killing their father.

The conspiracy had been brewing for a long time, and late on the night of January 28, the conspiracy began to be carried out. Why did the three Ran siblings so eagerly harm their father? Could this be related to the letter Ran Ruzhai wrote to Ran Shikai? In that letter, Ran mentioned the matter of letting Ran Shikai return to Jingnan. Mrs. Gao's words confirmed from another side that it was not just Ran Ruzhai's idea to let Ran Shikai return to Jingnan, he had already put his idea into practice - he had already asked Mrs. Gao's son-in-law for help.

Imagine that if Ran Shikai returns to Jingnan, then, after a hundred years, Ran Ruzhai will definitely hand over the front yard of the Ran family to Ran Shikai, and hand over the front yard of the Ran family to Ran Shikai, which is equivalent to handing over the treasure passed down by the ancestors to Ran Shikai.

As soon as Ran Ruzhai died, the front yard of the Ran family and the heirloom of the Ran family would belong to the three brothers and sisters of the Ran family.

After leaving the school, Director Zhang led Ouyang Ping and his party to Mrs. Gao's tea stove.