8

At 7 p.m. on the same day, the medical examiner presented the post-mortem report after the autopsy:

The deceased died from 10 a.m. on August l4 to noon on August l6.

Cause of death:

(1) Death by suffocation from the direct cause of death

The cause of suffocation is strangulation of the neck.

The deceased had a 6.5 cm long and 1.2 cm deep wound on the back of his neck, which was caused by a kitchen knife blow. However, this injury was not fatal to the deceased. Because the wound was on the head, there was a lot of bleeding, but it did not cause death, and the victim still struggled physically after the injury. There were a total of 11 abrasions and bruises on his hands, legs, abdomen, and chest.

Tian Chunda thought, what is the right time to commit a crime?

The forensic doctor presumed the date of death from 10 a.m. on the 14th to noon on the 6th, which was within these two days. The body was found between 4 and 6 days after Xu Lixiang's death.

Generally speaking, it is relatively easy for a corpse to be presumed dead within 48 hours after death, but it is very difficult to determine whether it is more than 3 days after death. It is difficult to tell from the condition of the body whether he died 3 or 4 days ago.

Because of the different experiences of forensic doctors, there are also differences in perceptions. The date of the forensic determination of the inexperienced medical examiner is relatively short, but the forensic doctor who has accumulated more than 10 years of experience in the post-mortem examination, although the time of death is roughly known, still writes the time within two days, which is more stable.

The results of the post-mortem examination only identify a general range of the time of death, and then narrow it down on the basis of the scene information or other relevant information, which is the work of the Major Crime Unit.

The Serious Case Group and the Taohua Town Police Station jointly held a case analysis meeting.

Tian Chunda made a concluding speech at the meeting:

According to the current investigation and the analysis of everyone, the following conclusions can be drawn:

First, the murderer is a strong man, and he should be young and middle-aged to succeed in the very strong Xu Lixiang.

Second, the murderer should have been someone Xu Lixiang knew well, so he could enter the kitchen of Xu Lixiang's residence, and took advantage of his unpreparedness to cut the back of his head with a kitchen knife from behind.

Third, the motive for killing, as everyone has analyzed, should be to kill people and kill people. The murderer is likely to be Xu Lixiang's accomplice, or at the behest of his accomplice boss. The murderer was very cunning, and after committing the crime, he removed his fingerprints, footprints and other traces, which increased the difficulty for us to solve the case.

Fourth, the forensic analysis of the time of the case was from the mid-morning of August 14 to the noon of August 16, and we will further investigate and refine it.

Fifth, the deceased's money and goods were not stolen, and it was not murdered for money. This increases the likelihood of death.

I have the following thoughts on the next steps:

Because Taohua Town is in the center of the tourist resort area and close to the border, the local government has a strong sense of safety precautions, and surveillance cameras have been installed at various intersections and important departments in the town. We have to look at all the surveillance footage from August 14 to 16 to see if we can find people related to Xu Lixiang, as well as suspicious people.

It is necessary to investigate the neighbors of Xu Lixiang's residence in Taohua Town to see if he can find suspicious people and useful information from them.

It is necessary to investigate Xu Lixiang's Guan people, including relatives, friends, and colleagues, to see if they can find useful clues from them.

19

New clues were soon discovered. When investigating the situation with Xu Lixiang's neighbors in Taohua Township, Mrs. Cai said that when she went to the morning market to buy groceries on the morning of August 16, she saw Xu Lixiang looking out of the window. In this way, the time of Xu Lixiang's killing can be determined to be the morning of August 16.

And asked Cai Bin to observe the road surveillance video brought back from Taohua Town, he found a suspicious figure, it was Yu Youde, deputy general manager of Xingda Real Estate Company, the original car driver Du Wei, and now he is the company's vehicle management and management driver. Although he wore a cap and sunglasses, Cai Bin recognized him by his body shape and walking posture. He and Xu Lixiang are not only familiar with each other, but also have a close relationship, and Xu Lixiang will not guard against him. During the incident, he was born in Peach Blossom Town, which is indeed very suspicious.

Tian Chunda returned to Nanshan City and interrogated Dewey with two criminal policemen. Inquiries are made in the meeting room of Xingda Real Estate Company.

Dewey enthusiastically said to the criminal policemen: "I heard that the police officers are coming, so I specially prepared some good tea." As he spoke, he made tea and sent tea to the criminal police.

Tian Chunda watched him carefully. He was seen to be in his forties, with a strong body, and the muscles under the close-fitting T-shirt bulged one by one. He thought that with his physique, he should have the upper hand in fighting Xu Lixiang. He also saw that Dewey walked with obvious splayed feet, so that he swayed from side to side, like a duck's step. He also noticed that Dewey was left-handed, and he used his left hand to pour water and serve tea. He looked at Dewey and asked, "You've worked on a ship in the past, haven't you?"

Dewey replied with a smile: "Yes." As a young man, he worked as a seafarer for several years. Later, I changed my career to become a car driver. Team Leader Tian is really sharp-eyed, and even I can see that I have worked on the ship in the past. ”

Tian Chunda smiled and said, "I'm also guessing." He looked at Dewey again with sharp eyes and said, "We are here this time to learn something from you, to do a routine."

Dewey smiled and said, "Just ask, what the officers want to know." ”

"What are you doing in Peach Blossom Town in mid-August?" Tian Chunda asked.

"Our company bought a car from abroad, and I went to the border port to pick it up. By the way, I went to the nearby Taohua Town Tourist Resort. Dewey replied calmly.

"Can you show us the customs clearance procedures for buying a car?"

"Yes. It's stored in the finance department, and I'll pick it up. Dewey said and got up.

After a while, Dewey came back and handed over the customs clearance procedures for the car he had picked up to Tian Chunda.

Tian Chunda carefully inspected and saw that the formalities were indeed handled in mid-August, and the signatories were all Dewey. It seems that what Dewey said is true. Then, there is a valid reason for him to go to Peach Blossom Town in mid-August.

"Are you in Peach Blossom Town, have you seen Xu Lixiang?" Tian Chunda asked again.

"Xu Lixiang? Did he go to Peach Blossom Town? I don't know. I didn't see him either. ”

"Xu Lixiang was killed in Taohua Town in mid-August. What do you know about this? Or have you heard of something?"

"I don't know, and I haven't heard anything. I heard about it from you. ”

"What did you do on the morning of August 16th?"

"On the morning of August 16th?" Dewey raised his head as if in memory. After a while, he said: "On the morning of August 16th, I had breakfast at Want Want Snack Bar, and then went to the cinema next door to watch a movie, and I saw it from half past eight to more than 12 o'clock, which were two films."

"Which two films have you watched?"

"One is "The Thirteen Hairpins of Jinling", and the other is "The Return of the Mountain".

"You keep watching, didn't you leave the scene halfway?"

"I watched it all the time, and I didn't leave the field halfway through."

After talking to Dewey and returning to the office of the serious crime group, Tian Chunda immediately called Hao Dong, who was still investigating in Taohua Town. On the phone, Tian Chunda told him about the conversation with Dewey, asked Hao Dong to verify that Dewey had breakfast and watched a movie on the morning of August 16, and sent Dewey's photos through the Internet. Tian Chunda also asked Hao Dong to carefully examine Xu Lixiang's wounds to see if the murderer had cut them with a knife in his left hand.

The next day, Hao Dong called Tian Chunda back, saying that Dewey had indeed gone to Want Want Snack Bar for breakfast on the morning of August 16, and the restaurant waiter recognized him after looking at Dewey's photo. The cinema attendant looked at the photos and decided that Dewey had entered the theater at the beginning of the film. But he didn't pay attention to whether he left halfway through. Hao Dong also said that he and the forensic doctor carefully examined the wound on the back of Xu Lixiang's head and found that it was indeed a knife cut with his left hand.

Tian Chunda said that Dewey was left-handed.

Tian Chunda and his subordinates again inspected the surveillance cameras on the roads in Taohua Town on the morning of August 16, but did not find Dewey. Tian Chunda thought that Dewey might have noticed the surveillance cameras on various roads at this time and avoided them.