Wen Xin's words reminded me of our previous inference that the murderer was an insider, and I couldn't help but sigh: "I don't want him to be a policeman..."
After getting on the bus, I asked Wen Xin where she was going, and she said without thinking: "Yintai Hotel."
"Do you still want to check Tang Tianyi?" I asked.
"Anyway, there's not much progress on other clues at the moment. Let's go over there and take a look. After reading it, we'll go back to the team to get the record of the driver's interrogation."
When I arrived at the Yintai Hotel, after identifying myself, I asked the girl at the front desk how long they could keep the housing records. She said that the housing records were in text format and did not take up much memory, so they had not deleted them.
This news made Wen Xin look happy and immediately said: "Then help me find out which room Tang Tianyi lives in."
The girl at the front desk tapped the keyboard and told us after a few seconds: "Room 508."
"What? Isn't it the third floor?"
"Look if it's this person." The little girl pointed at the screen for us to see.
Wen Xin and I looked sideways, dumbfounded. It turned out that the girl was looking for "Tang Tianyi". She probably saw too many advertisements.
I took a pen and wrote down the three words "Tang Tianyi" and asked the little sister to check again. It only took a few seconds for the little sister to say that she had found it.
"Little sister, why are you typing so fast?" Wen Xin was a little curious.
I smiled and said, "Didn't you see the Wubi input method she used? Of course it's fast. All professional typists use this input method."
"Haha, yes, let's see if I checked correctly this time." The little girl said with a smile.
I looked again and saw that it was Tang Tianyi. He had eight check-in records at the Yintai Hotel, and the check-in time was two years ago. The last one was the night Shasha was killed. These were all fine, but when I saw
When the check-in room number was listed, I felt something was wrong.
"205,501,407...309,309." Wen Xin read out the rooms where Tang Tianyi stayed eight times in chronological order.
"How do you arrange rooms here?" I asked the girl at the front desk.
"First ask the guest whether he wants to stay in a single room or a standard room. After confirming the type, we will randomly arrange it in an empty room." The girl answered.
Wen Xin then asked: "If he is a regular customer, will he be given priority in arranging the room he stayed in last time?"
"We generally don't take the initiative to make arrangements like this. If the guest specifically requests it and the room happens to be vacant, that's fine."
"Can you print a copy of this inquiry record for me?"
"No problem, just a moment." After the girl finished speaking, she skillfully operated the computer and printed out a copy for Wen Xin and I.
"Is room 309 occupied now? We want to go in and have a look." Wen Xin asked when she took the order from the younger sister.
"Let me take a look." The little girl checked and then said, "No one is there. You go ahead and I'll ask the people upstairs to open the door for you."
When we went upstairs, Wen Xin asked me: "I saw you touching the back of your head just now. Did you think of something?"
"Touch the back of your head? Have I ever done this before?" I couldn't help but be a little surprised.
"Of course, I noticed that you do this little action every time you think seriously, but maybe you don't realize it yourself." Wen Xin smiled and continued: "Tell me, what did you find?
"
She observed so carefully that I didn't even notice it myself.
After calming down, I analyzed: "Tang Tianyi stayed in different rooms for the first six times, but the same for the next two times. I am a science student. When I saw this set of numbers, my first reaction was that the last two times did not conform to the overall random arrangement.
Regularity. But this is not a big deal. After all, this situation may occur with random assignment, but the probability is smaller. Furthermore, it may be that Tang Tianyi felt that living in 309 was particularly comfortable, so he asked for it when he came for the second time.
This room.”
"Whether living in 309 is particularly comfortable, we'll know if we go up and take a look." Wen Xin smiled lightly, and then said: "Apart from the room number, you can also look at the check-in time. The intervals between the first 6 times are about a week.
, but there was only 2 days between the next two times, which seems a bit abnormal."
I thought for a while and said: "Because of the different work places, many couples in the university will separate after graduation, so they will seize the time to be gentle. But Shasha is going to country M with Tang Tianyi. The two of them will not be separated for the time being. They should not be separated.
It has to be so boring."
At this time, the elevator had reached the third floor. After the door opened, a waiter stood outside. Wen Xin and I stopped talking and entered room 309 under the guidance of the waiter.
To our surprise, room 309 is at the corner and the space in the room is relatively small. I asked the waiter and she said that room 9 on each floor is at the corner and is smaller than normal rooms.
"What's the price?" I asked immediately.
The waiter said: "The price is the same as other single rooms."
Hearing this answer, Wen Xin and I looked at each other with confusion on each other's faces. Given the same price, no one would be willing to stay in a room with worse conditions, unless they really had no choice.
Wen Xin asked: "Is your hotel doing a good job?"
“On weekdays, the occupancy rate is almost 50%. On weekends, there are many students, so it is basically full.”
I immediately took out my phone, called up the calendar, flipped to the time of the year, and compared it with the check-in time on the list. I found that 5 of the first 6 times were weekends, and the last two times I stayed in 309 were not weekends. According to the waiter,
, there is no room available for these two times.
Wen Xin was next to me at that time and saw my contrast. Because there was a waiter, she didn't say anything and I didn't say anything either. We started to observe the room.
The room was very small, the structure was clearly visible, and there was nothing interesting to see. I went to the toilet and looked around, but found nothing. When I came out of the toilet, I saw Wen Xin standing by the window. There was a protective fence on the window, and the protective fence protruded out.
Thirty centimeters.
Wen Xin stuck her head out and was looking at something. I walked over curiously and asked her what was wrong.
"Yuan Chen, are you sure about taking down the protective fence and letting you climb along the drainage pipe to the first floor?" Wen Xin turned around and looked at me and said.
Her words made my heart skip a beat, and I quickly stuck my head out to observe the terrain outside the window.
309 is at the corner of the floor. Less than one meter away from the window is the drainage pipe of the floor. The pipe is the most common white hard plastic material, round, and about fifteen centimeters in diameter. I looked up and saw that the pipe
Starting from the sixth floor at the top, the direction is straight, extending all the way to the first floor, and then submerging underground.
I measured the distance between the window sill and the pipe and made an estimate. If I exclude the fear of heights, I should have no problem stepping from the window sill to the pipe. The pipe itself is smooth, but there are reinforced collars every one meter.
It can bear weight. With a little practice, it is not difficult to climb up and down the pipe with the help of the collar.