"Team leader, what do you want? Do you still drink iced drinks? Li Ming pretended to be courteous, unscrewed the cap of the drink bottle, and presented it to Lao Chen with both hands.

Lao Chen took the iced drink and took a few sips.

Just now, under Li Ming's casual reminder, Lao Chen already had some eyebrows in his heart about the case, but there were too many suspicious points at this strange crime scene, three corpses, among which the stranger who was killed in the kitchen looked like he was killed by the security guard, Lao Chen could be sure that no one in Aunt Wang's house had escaped after the crime.

Regarding the death of the security guard, the main reason is that Lao Chen went to knock on the door after finding out that Aunt Wang's house had a murder, Lao Chen asked the identification department to check the door, and as Lao Chen expected, the appraisal personnel detected two palm prints on the door, but the person who left these two palm prints surprised Lao Chen, originally Lao Chen speculated that it was left by the security guard, but it turned out to be left by the stranger who was killed in the kitchen.

For this result, Lao Chen was a little scary, because this showed a very important thing, it is possible that the stranger who was killed was the murderer who led all this.

Thinking about the history of this case, Lao Chen felt strange at the beginning, why did he have to put translucent window paper on the kitchen when committing the crime? Now I finally found the answer.

"Li Ming, hurry up and investigate the identity of that strange deceased." Lao Chen shouted.

"Yes......" Li Ming ran downstairs happily and quickly drove back to the police station in a police car.

Lao Chen has two ideas.

The first is that the strange deceased is the murderer in this case, and the black shadow that Lao Chen saw at Yi Shuai's house at that time that first appeared in the kitchen of Aunt Wang's house should be a security guard, and the person who later attacked the black shadow was a stranger. When Lao Chen saw this scene, he ran to knock on the door, and at this time, the stranger placed the body of the security guard on the table in the living room, and after doing these details, the stranger stabbed himself and finally hit his head on the glass window of the kitchen.

But then there is a question, why did a pair of stranger's palm prints appear on the door? At that time, Lao Chen knocked on the door for enough time for strangers in the room to do these things, logically speaking, when Lao Chen kept knocking on the door, there was no need for strangers to lie on the door to see Lao Chen, why is this?

There are two explanations for this, the first is that the stranger found that there were other people in the kitchen of Yi Shuai's house at that time, so the stranger leaned on the door and looked through the door mirror to see who was knocking on the door outside; The second is that before Lao Chen rushed here, the stranger leaned on the door and looked out, and there must have been someone else knocking on the door at that time.

Thinking of this, Lao Chen felt a little chill down his spine, no matter which plan made Lao Chen feel very strange.

No matter how you look at this case, there should be another witness, or another insider.

But Lao Chen didn't find anyone else when he was at Yi Shuai's house, which Lao Chen is completely sure of.

This first idea made Lao Chen feel a little unavoidable, and after breaking down the big problems into small ones, the case became more and more complicated, and Lao Chen had to sketch these problems on straw paper.

Regarding the question of whether there was anyone in Yi Shuai's family at the time of the crime, Lao Chen completely believed in his own cognition, and after more than 20 years of experience in the profession of criminal police, Lao Chen believed in himself the most, so Lao Chen believed that if there was a second witness at that time, that witness must not be in Yi Shuai's house.

These questions are put aside for the time being, and the second assumption about Lao Chen is that there was a fourth person in Aunt Wang's house at the time of the crime, and in addition to the dead stranger and security guard, there should be another murderer.

But how did the murderer escape? Lao Chen can be said to have witnessed the entire process of the case at that time, and on this point, Lao Chen also fully believes in his own cognition, and can even be completely sure that absolutely no one has ever come out of the scene of the crime.

In the end, Lao Chen still insisted that the first assumption was correct, that it was the stranger who planned the murder, and as long as the identity of the stranger was found, it was possible to trace the motive for the murder, and with the motive for the murder, the whole case could be explained.

Buzzing......

Lao Chen's phone rang, and the caller was Li Zhitong.

"Hello? Zhitong! ”

"Are you busy?"

"What's wrong? Did you send Si Tong and Si Yan away? ”

"I've been sent on the plane, and now I'm going to go back to you, where are you?"

"I ...... I'm at Yi Shuai's house, and there has been some progress in the case, and I'm investigating. ”

"Do you need me to go?"

"En......" Lao Chen thought for a moment. No need, go back and rest! There's important things to do tomorrow, and your task now is to get enough sleep. ”

"Oh well! Feel free to call me if necessary. ”

After Li Zhitong hung up the phone, Lao Chen felt a little regretful, because Lao Chen couldn't figure out the case at all.

At this time, Lao Chen's heart couldn't help but have an urge to ask Xu Tian for help, but Lao Chen felt unwilling, and Lao Chen kept repeating in his heart that he was a criminal policeman, since he had refused Li Zhitong's help, he had to make up his mind to solve the case, Lao Chen also wanted to prove his strength very much, and also wanted other colleagues to take a look, in addition to arresting criminals, I Lao Chen is also very good at solving cases.

Li Ming hadn't brought the news yet, Lao Chen looked at the time, at this time Li Ming had just returned to the police station, and it would take at least dozens of minutes to check the identity information of the stranger, during this time, Lao Chen had to continue to study the big and small questions on the paper.

After Lao Chen smoothed out those questions, he wrote all the suspicious places under those questions.

1. Why did the homicide happen next door immediately after rushing to Yi Shuai's house, is this a coincidence or did the murderer deliberately let himself see the murder?

2. Why is a layer of translucent window paper pasted on the kitchen window of Aunt Wang's house? Is it just to disguise the appearance of the murderer?

3. The murderer deliberately used the trick of diverting the tiger from the mountain, the purpose was to make the stranger's head hit the glass window of the kitchen, no matter who the murderer was, this action must have its meaning, and it is absolutely impossible to do it just to kill the stranger.

4. Why did the security guard die from electric shock? And where does the powerful current come from?

Fifth, why Aunt Wang died peacefully in the bedroom is also an extremely critical matter.

6. When did a stranger lie on the door and look out? What is his purpose in doing this?

The above six suspicious things are the essence of the whole case, and only by figuring out these problems will everything in this case be solved.