"There is no need to check the property, because the target of the gangster has locked the wife from the beginning. Of course, this is only my personal view."

They looked at the position at the door of the living room and found that the speaker was a white bird police officer who had not seen for some time.

Officer Gaomu looked at officer white bird and said in surprise, "white bird police department, why are you here?"

After hearing officer Gaomu's words, officer bainiao showed a slightly proud smile and corrected with a smile: "no, I'm not the police department anymore. Just today, I've been officially promoted to the police department! Incidentally, I'm fully responsible for this case now."

"Eh? You're already a police department... Congratulations."

Officer Sato was a little surprised and congratulated the promoted white bird police department. Then he asked, "but why do you say that the target of the gangster is not property?"

"The key is the scream of the victim you hear on the phone."

The white bird police department put his hands in his trouser pocket and a confident smile on his face. He explained: "generally speaking, thieves who steal property can't deliberately attack people who are talking on the phone. If they see their face and make a sound, they will only run away in fear."

This point of the white bird police department is the fourth doubt found by Bai Yan Zhenyu before. It can be seen that the ability of the white bird police department to solve cases is indeed better than officer Sato and officer Takaki. No wonder it will be promoted to the police department at such a young age.

Seeing that everyone recognized his reasoning, the white bird police department became more confident and turned to officer Takagi and asked, "I heard that the victim is going to come to the police station to make a confession today?"

"Yes, she said she remembered the details of the robbery a few days ago..." officer Takagi nodded and truthfully told what had happened these two days.

After listening to officer Takagi's words, the white bird police department looked thoughtful and asked again, "when the victim was talking, did you know that the person talking to her was the police in our police station?"

Officer Takagi nodded and said confidently, "I should know. After all, I had contact with her last night."

"That's not wrong. The gangster killed the victim when she was on the phone just to keep the victim from talking to the police."

In the eyes of the white bird police department, a look like this flashed and speculated: "if I guessed correctly, the gangster should be the robber of the bank robbery. He thought that the victim saw their appearance when he was a hostage, so he came to kill people."

"Yes, very likely,"

After listening to the reasoning of the white bird police department, officer Takagi added excitedly: "when the victim was taken hostage, because of fierce resistance, he once grabbed a robber's wool hat. The gangster just couldn't subdue her, so he would catch Mu Tai who happened to go to the bank as the second hostage..."

Reminded by the two of them, Zeng Wei Guizao seemed to recall something and echoed: "yes, I remember what you said. Last night, my wife seemed to be talking about foreigners..."

"That's right. Your wife must want to tell the police the characteristics of the robber."

With the words of Zeng Wei Guizao as supporting evidence, the white bird police department was more convinced of its reasoning and immediately ordered: "brother Gaomu, contact the special search headquarters immediately and say that one of the robbers can now be determined to be a foreigner."

"Wait, officer Takagi."

Baiyan Zhenyu shouted to the Gaomu police officer who was about to leave and reminded him, "don't you think it's strange that the back of the fitness car is only about one meter away, and there are no doors and windows behind. How did the gangsters go around behind her and attack her without being detected?"

Officer Sato looked at the location of the body and interrupted: "although the deceased died after being stabbed in the back, it doesn't mean that he must have attacked from behind the fitness car. It may be that when the deceased found the murderer and wanted to escape, he was killed from behind by the murderer."

Bai Yan Zhenyu shook his head and denied: "if so, the body should be farther away from the exercise bike, and the sweat stain of the dead is only on the pedal of the exercise bike, which means that the dead was carried to the exercise bike by the murderer after he was killed on the exercise bike."

"So it is..."

After re analyzing the information on the scene, the white bird police department felt that his reasoning was not rigorous enough and asked Zeng Wei Guizao, "Mr. Zeng Wei, does your wife usually use a fitness bike? And when did your husband and wife get up today?"

Zengwei Guizao nodded and replied, "yes, she exercises at two o'clock in the afternoon every day. Today, I left home early in the morning because I had to go to the bank to deal with some time. She drank with her friends late last night. It is estimated that she didn't get up until noon."

The white bird police department went to the bookshelf behind the exercise bike and opened the shutter of the bookshelf. It found that there were three layers of bookshelves behind, which were empty, and the partition in the bookshelf was movable, enough for an adult to completely hide in it.

"I think the killer probably investigated the living habits of the family. Before Mr. Zengwei left and Mrs. Zengwei didn't get up, he ran in and hid in this bookshelf. When Mrs. Zengwei came here to exercise, he killed her from behind."

This speculation of the white bird police department was recognized by police officer Sato and others, but Bai yanzhenyu still found a loophole in the reasoning.

"White bird police department, the killer was obviously worried that the victim would tell the police the information, so he couldn't wait to kill her when she answered the phone. In that case, he should be right immediately after the crime is completed. Is it necessary to tidy up the partition and curtain?"

Bai Yan Zhenyu's reminder once again made the white bird police department and others reflect.

Sergeant Sato went over to check another bookshelf next to him and agreed: "there is really something wrong with this. The bookshelf next to him is full of books."

Just then, a policeman ran over and reported: "white bird police department, a very strange photo album was found in the victim's room, and most of the photos were painted with strange circles."

Seeing the photo album reported by the police, Zengwei Zao seemed a little nervous. He grabbed the album and stammered: "ah... This... Is just my wife's prank. I've stopped her before, but she didn't listen to me."

The abnormal reaction of Zeng Wei Guizao makes Bai yanzhenyu more convinced of his murderer's identity, but more clues are needed to find out the evidence.