The room was empty. Okazaki Chengjiang, who should have been honest at home, disappeared. After finding no results in each room, Bai yanzhenyu took out his mobile phone and told the situation to officer Sakata who came here.

"Eh? Miss Okazaki is not at home? What's the matter? She was told not to go out?"

Officer Sakata's angry voice came from his mobile phone. He was obviously dissatisfied with Okazaki's self assertion.

"Yes, we threw ourselves into the air." the service department looked at the TV still broadcasting the news for the first time and asked solemnly, "brother Sakata, did miss Okazaki call you again?"

While driving the car to adjust the route, officer Sakata replied, "I didn't tell her cell phone number. How could she call me?"

"That's what I said. In a word, hurry up. I think something's wrong."

Sakabe hung up the phone and heard a scream of panic outside the window before he could survey Okazaki's residence with Bai yanzhenyu.

"The sound came from below!"

Baiyan Zhenyu moved and appeared at the window of the living room. He lifted the curtain and looked in the direction of the sound. He found that outside the downstairs public toilet, a figure in gray clothes was sitting on the ground, backward with hands and feet. It seemed that there was something that frightened him.

"Let's go. Go to the public toilet below."

Baiyan Zhenyu didn't have time to explain. He took the lead and ran out. When Nobu and Conan saw it, they followed him there.

When the three rushed to the public toilet, they saw Okazaki Chengjiang lying on his back on the floor. Like the previous victims, he stabbed a sharp knife into his heart through his wallet.

Baiyan Zhenyu tried her pulse, shook her head and sighed, "she's dead."

"How could it be like this? Why did you have to come out?" Nobu Pingci beat the wall with a depressed face. Unexpectedly, the clue he finally got was broken in this way.

Before long, officer Sakata hurried to the scene. After learning that Chengjiang Okazaki was killed, he immediately reported to the police and led the team to investigate the scene.

The murderer was quite cunning. There was no obvious trace left at the crime scene, but an important clue was found in the Chengjiang house in Okazaki.

The clues are two telephone voices left by the voice transformer, which are [you come to Xinzhai bridge now, I'll let you meet your past friends] and [see, it's your turn to die next].

The recording time of the two calls was 1:08 p.m. and 1:10 p.m. such a short interval immediately aroused the suspicion of Bai Yan Zhenyu and others.

The Xinzhai bridge mentioned in the first recording was next to the place where yean and human bodies fell, that is, Okazaki Chengjiang appeared near the scene after hearing this telephone recording.

The second telephone recording that followed showed that the murderer should also be at the scene. After discovering Okazaki Chengjiang's escape, he deliberately threatened Okazaki Chengjiang with yean and human bodies.

In this way, this can explain why Chengjiang Okazaki was so nervous and frightened when he received a call from officer Sakata.

Conan touched his chin and said solemnly, "these four cases are really strange. It's like being controlled by the murderer. I have a bad feeling."

Listening to Conan's remark, nobuji's heart also filled with some ominous foreboding. Thinking of the previous dream, he suddenly took off his amulet and put it on Conan's neck.

"Service department?" Conan looked at service department Pingci strangely, obviously some did not understand his practice.

"Ha ha," said Hattori, grinning casually, "this is an amulet that can bring good luck. I'll lend it to you for the time being and return it to me before you leave."

"Well, thanks." although Conan didn't believe in amulets and other things, he didn't refuse the kindness of the Department of clothing.

After the on-site investigation, no other useful clues were found, but a new clue came from the police, that is, the victims and the township Secretary members all participated in the same driving test training class 20 years ago.

This new clue connects all relevant personnel, and the murderer's criminal motive is likely to be hidden in it.

After returning to the police station, officer Sakata transferred the information of the training class and showed it to Bai Yan Zhenyu and others. It was found that in addition to the five students, the wanted robber and murderer, Ichiro Murakami, was also a student of the training class at that time.

According to the data, although all six students have successfully graduated from the intensive training class, Miss Okazaki was the only one who got the driver's license that year.

In addition, the data also mentioned a case. On the day of graduation 20 years ago, the instructor in charge of guiding the six people, michiki Inaba, died in a car accident because of drunk driving.

After reading all the information, the service department held his chin and guessed, "do you think it will be like this? Miro yuanjiichiro lacked the running fee, so he used this as an excuse to blackmail the township secretary. After being rejected, he killed other people, so as to intimidate the township Secretary again."

Bai yanzhenyu put down the information in his hand and added: "there is another possibility that the township secretary, as an alternate for the next congressman, used Ichiro Murakami to kill his former companions in order to destroy the previous scandal."

"In that case, both of these situations are possible, and I also heard that Nagao Yingmin and yean and others don't get very rich severance pay when they resign."

Bai yanzhenyu's conjecture was approved by police officer Sakata. When he drove with the people to investigate the township szetoro, the police suddenly came the news that the car abandoned by the wanted man Ichiro Murakami was found in Jimian mountain area. It is necessary to search Jimian mountain area for police support.

"It seems that we should go there first."

Officer Sakata reluctantly scratched his head, then changed his route, took Bai Yan Zhenyu and others to Jimian mountain area to search for UMA yuanjiichiro.

After all, Pingci and others of Baiyan Zhenyu and service department are not police, so the police did not allow them to participate in the search work that may be dangerous, and asked them to wait at the foot of the mountain with the police responsible for remote monitoring.

With the efforts of many police officers, the search for Jimian mountain area was soon completed, but the absconded Ichiro Murakami was not found.

When the police judged that Yoshiro Murakami had left Jimian mountain area and was ready to close the team, Baiyan Zhenyu suddenly pointed to a building on the hillside and warned: "Yoshiro Murakami didn't leave, so he hid in the abandoned shrine on the mountain!"