At this time, Xiao Bing, after waking up, was afraid of his heart. In a panic, he knocked out the ashtray that possessed the bloodstains, picked it up from the carpet, and hurriedly ran out of Xu Bingyan's room. This explains why Xu Bingyan's stall is stained with Xiao Bing's blood.

After Xiao Bing ran out, he hurriedly ran to a nearby hospital to bandage his wounds. According to Xiao Bing's recollection, when he left, Xu Bingyan was exhausted, lying on the bed panting, but she did not die.

Later, in the evening, Xiao Bing saw a group of police cars coming to Haoxing Hotel, and only after inquiring did he know that Xu Bingyan was actually dead. This frightened Xiao Bing, and he was afraid that he would not be able to explain it clearly. So he hurriedly asked for leave to go out to avoid the limelight, he originally planned to fly to a farther place in a few days, but he was still caught by the police. At the end of the interrogation, Xiao Bing almost kept repeating the following sentence: "Mr. Policeman, I really didn't kill anyone, I didn't kill people." I beg you, the real murderer is not me, let me go. ”

Jiang Chonglang and Zhang Lanshan watched the video of interrogating Xiao Bing several times, and both of them felt that Xiao Bing's tone and expression did not seem to be lying, he should not be a murderer. And there is the following evidence to show that: first: the head blow that killed Xu Bingyan was caused by a blunt object of small size, and Zhang Lanshan and her apprentice deduced that it should be a wrench based on the shape of the wound; Second: After careful examination and analysis of the occult blood test, there were only traces of Xiao Bing's blood on the ashtray, and there was no trace of Xu Bingyan's blood; Third: After visiting and investigating, after Xiao Bing was injured by Xu Bingyan that day, he immediately went to the big hospital near the hotel to bandage, where he stayed for more than two hours, many doctors and nurses can testify that if Xiao Bing is really a murderer, he should hide immediately after killing people, instead of going to such a conspicuous place.

After a long round of investigation, the case returned to square one, and all the suspects were finally proven innocent. In the conference room of the Criminal Investigation Brigade, Han Yuchao helped Jiang Chonglang, who was in a headache, to sort out the progress of the investigation to the present case from beginning to end:

The time of death of the deceased Xu Bingyan was around 2 to 4 o'clock in the afternoon of the 10th. Before Xu Bingyan died, there were three people in her room:

First, at about half past one in the afternoon, Qian Ruifeng entered the room of the deceased Xu Bingyan and stayed until 2:50 to leave; 15 minutes later, that is, just after 3:5 o'clock, Qian Xiaotong came to Xu Bingyan's room, and the two quarreled for less than ten minutes, and at about 3:15, Qian Xiaotong left; Qian Xiaotong almost left with his front foot, and Xiao Bing entered Xu Bingyan's room with his back foot, but he was kicked out by Xu Bingyan in less than ten minutes.

If all of the above speculations are correct. That is to say, by half past three in the afternoon, Xu Bingyan should still be alive. The time of her murder was further determined, between half past three and four o'clock, to within half an hour.

Jiang Chonglang said: "At present, before Xu Bingyan died, at least three people had entered her room. They are Qian Ruifeng, Qian Xiaotong, and Xiao Bing. All three of them have had more or less intense physical contact with Xu Bingyan, and the female stars eat very little in order to maintain their figures. So after three rounds, Xu Bingyan must be very tired, not to say that she is exhausted. So if a fourth person comes in and has a physical conflict with Xu Bingyan again, Xu Bingyan shouldn't have much strength to resist. ”

Han Yuchao continued his words and said, "Then it is not impossible for us to assume that the murderer is the fourth person, enter Xu Bingyan's room immediately after Xiao Bing leaves, and kill Xu Bingyan when she is exhausted." So this person must have followed Xiao Bing in, he must have known that the hotel's surveillance had been turned off, so he dared to kill people with confidence. So I'm guessing the killer should be a staff member of the hotel. ”

Hearing this, Jiang Chonglang immediately came to his senses and said: "Check, let's see if any of the hotel staff are not on duty and ask for leave during the period between three and a half past three to four o'clock in the afternoon on the day of the crime." Especially those who had contact with Xiao Bing that day. ”

The serious crime team interrogated Xiao Bing again, and Xiao Bing had obviously had a bad time in the detention center these days. The spirit is sluggish. Jiang Chonglang deliberately raised his anger, and said with a fierce face: "Xiao Bing, you should know the phrase "be lenient in confession and strict in resistance." Now all the evidence points to you as the murderer. If you still argue and deny it, you are killing yourself. So, you have to give a detailed account of what you know. ”

At this time, Xiao Bing was already like a frightened bird, and a casual glance of his eyes could make him frightened, "Mr. Policeman." You ask. I will be honest, honest. ”

Xue Ran, who was next to Jiang Chonglang, also had a bearded and glaring expression: "Xiao Bing, let me ask you." When you go to the CCTV monitoring room that afternoon, who else do you see besides the security guards inside? ”

Xiao Bing thought about it carefully and said, "No, there was an old man on duty there that day, named Qin Zheng." We all called him Lao Qin, and that day I saw that he seemed to be feeling a little unwell, so I asked him to go back to the dormitory to rest. Said I'll go find someone to watch for him. Actually, I'm actually going to ......" Xiao Bing couldn't go on, of course, Jiang Chonglang and they also knew the follow-up of the matter.

Immediately afterwards, Shen Bin and the others also found Qin Zheng. Qin Zheng also confirmed that what Xiao Bing said was correct, and Qin Zheng was also resting in the dormitory that afternoon, and told the people in the dormitory that Xiao Bing agreed. Both people in the same room can testify.

Shen Bin continued to ask, "There are four people in your dormitory, so where does the other one go?" ”

Qin Zheng replied: "You said Wang Chenhao, Xiao Wang, that day it was said that the water pipe of one of his friends' house was leaking, and he asked him to take a wrench and repair it for others." ”

Wrench, hearing this sentence, the police officers couldn't help but be shocked. Because according to the autopsy report provided by Zhang Lanshan: Xu Bingyan's fatal wound is very likely to have been caused by a wrench.

Shen Bin immediately said: "Uncle Qin, I want to see where this wrench is." ”

"It should be under his bed, you can look for it." As he spoke, he pulled out a toolbox from the bottom bunk of a bed, opened it and took out a wrench.

However, Uncle Qin Zheng and Qin were still very surprised and looked at this wrench and said: "Hey, Xiao Wang is not usually a person who likes cleanliness too much, how can he wash this wrench so cleanly." It looks like I've washed it at least seven or eight times. ”

After Shen Bin took the wrench to the Public Security Bureau, Zhang Lanshan was like a treasure. After comparing the scars, sure enough, Xu Bingyan's fatal injury should have been caused by this wrench.

But the wrench was scrubbed so clean, it seemed difficult to extract the blood stains for comparison. However, Zhang Lanshan said: "Even if he is clean, the grooves on the internal gears of the wrench are difficult for him to deal with thoroughly." Let's try our luck and see if we can get something out. Jiang Chonglang nodded, on the one hand, he asked people to keep an eye on Wang Chenhao's every move.

Just when Zhang Lanshan was trying to analyze this wrench, Jiang Chonglang received a call: "Team Jiang, it's not good, Wang Chenhao returned to the dormitory this afternoon and learned that you had come and took his wrench away." He resigned in a hurry, and now that he has packed his luggage, it looks like he is going to run away. ”

Sure enough, it seems that Wang Chenhao is really suspicious. Jiang Chonglang hurriedly ordered Wang Chenhao to be arrested. In an instant, the police car started and the siren sounded, breaking the silence of the night.

According to the reports of the surveillance and tracking personnel, Wang Chenhao is fleeing in the direction of the bus station in Yangcheng City at the moment. The police car whizzed by, and finally arrested Wang Chenhao before he could get into the car.

At the same time, Zhang Lanshan's report over there also came out. Xu Bingyan's blood stains were detected in the crack of Wang Chenhao's wrench. At the same time, the members of the task force found Xu Bingyan's missing jewelry in Wang Chenhao's suitcase, including rings and necklaces.

The evidence is ironclad, Wang Chenhao can no longer deny it, and honestly confesses the crime, he killed Xu Bingyan himself.

According to Wang Chenhao's confession, he and Xu Bingyan did not know each other, nor did they know that Xu Bingyan was a star, and the reason for the murder was just impulsive, anger and robbery.

Wang Chenhao didn't have to go to work in the afternoon that day. He received a call from his girlfriend saying that the water pipes in her mother's house needed to be repaired. So when Wang Chenhao was about to leave with a wrench, he suddenly wanted to buy some gifts for his future mother-in-law.

Wang Chenhao and Xiao Bing usually have a good relationship, he used to be a driver for Xiao Bing, and sometimes when Xiao Bing went out to make trouble, Wang Chenhao helped hide it. So Wang Chenhao was ready to go to Xiao Bing to borrow some money to try.

At this time, Wang Chenhao suddenly saw Qin Zheng coming back from the same dormitory, and Qin Zheng told him that Xiao Bing saw that he was not feeling well, so he asked him to come back to rest. Wang Chenhao asked Qin Zheng where he could go to Xiao Bing and told Wang Chenhao that if he wanted to find Xiao Bing. Qin Zheng replied that Xiao Bing should be in the video surveillance room.

So Wang Chenhao was preparing to go to Xiao Bing according to what Qin Zheng said. but they did not see him there. Later, I heard from others that I learned that Xiao Bing went to the chairman's office.

Wang Chenhao didn't dare to go in, so he had to wait outside. A few minutes later, Xiao Bing came out of it. But Wang Chenhao saw that his expression was abnormal, sneaky, and he was still swaying when he walked. seemed to be going to do something, which made Wang Chenhao even more afraid to step forward.

Later, he saw Xiao Bing enter the elevator, and the elevator stopped on the 34th floor, and he remembered that he was going to borrow money from Xiao Bing. So I also pressed the elevator to the 34th floor.

Wang Chenhao had just stepped out of the elevator on the 34th floor and was about to go to find Xiao Bing. I saw Xiao Bing running out of a room with his head in his arms, and a woman's voice came from the room: "The toad wants to eat swan meat, get out, get out, get out." "One is higher than one voice, and one is higher than one scream. Wang Chenhao usually doesn't watch much TV, and he never pays attention to entertainment news. So he hardly knew any singers and movie stars, so he didn't know who that woman was.

Then he saw Xiao Bing holding something in one hand and covering his head with the other. In a hurry, I didn't even take the elevator. Ran straight out of the safety staircase. Wang Chenhao was a little strange, so he ran to the door of the room and looked inside.