It only took Hou Changhong more than twenty seconds to unlock the door of No. 403.

No. 403 is a medium suite, with two rooms, one large and one small, and a living room (the house at that time did not have a dining room).

There is a small table and two small benches in the living room, a simple bed in the large room, and a desk in the small room, which is the desk used by the students in class, and a chair - exactly the same as the chair in Mr. Xia's office.

At first glance, you know that this is a bachelor's nest. Li Dongting's life is not organized at all. Things are placed in a haphazard manner. There is also a rattan box in the large room, and when the rattan box is opened, there are some washed and changed clothes. There were two pairs of black leather shoes under the bed, and some socks were stuffed into the sockets, and the smell of feet was in the air. Two quilts were laid out haphazardly on the bed, unfolded, and there was a woolen coat and a down jacket at the feet.

There is a square stool in front of the bed, on which is a glass teacup, and between the square stool and the bed, a plastic water bottle. Ouyang Ping opened the cork, and the water inside was warm.

Outside the large room there was a balcony, and on the rope of the balcony cool clothes, hung a hanger made of wire, and a raincoat hung on the hanger. This is a military raincoat in yellow color.

Judging by Li Dongting's journey to school, he doesn't need to wear a raincoat. So, what is this raincoat for?

The careful Ouyang Ping also found a piece of medicine under the pillow, the pill had been pressed into three petals, and this medicine may have been accidentally dropped on the bed by Li Dongting when he was taking the medicine.

What kind of medicine will this be?

Ouyang Ping wrapped the medicine with paper and put it in a leather bag.

There is an electric kettle on the small table in the living room, and under the table, there are two wine bottles of Tanggou Daqu, and there is no wine in the wine bottles.

By the way, there is one thing that cannot be missed: more than a dozen photos of female celebrities are posted on the walls of the big room, all of which are sexy photos of scantily dressed.

Li Dongting is in his thirties and has not yet married, and these celebrity photos are consistent with Li Dongting's identity.

Li Dongting is a teacher, but in his room, the comrades did not have a book, not even a professional book.

At eight o'clock that night, Ouyang Ping and his entourage drove to the black camp, and the other three were Liu Dayu, Chen Jie and Han Lingling.

Before leaving, Ouyang Ping sent Yan Jianhua and Li Wenhua to the bureau's forensic department to test the pill.

The black camp is on the outskirts of Jiangbei.

After the car drove over Yongwang Mountain, there was a dirt road below. At 8:50, the car drove into a small town and through it, a river blocked the way.

There is a ferry crossing not far away.

Chen Jie parked the car on the shore and the group got on the ferry.

The ferryman was an old man about 60 years old, and he was very talkative: "Comrades, where are you going?" ”

"Uncle, let's go to the black camp."

"Black camp, that place is not close!"

"Uncle, how long will it take to go to camp in the dark!" Han Lingling said.

"It will take at least half an hour, and you will have to cross a river, and after crossing the river, you will take two bags of dry tobacco, and you will camp in the dark." Who are you looking for? The old man probably saw the uniforms and hats worn by the four men.

"Uncle, Li Dongting - Teacher Li, do you know each other?"

"Yes, he is the black camper, and he often takes my boat."

"Did Mr. Li take your ferry this evening?"