At the scene of that year, the duty room stood alone in front of Lin Lei.

Lin Lei did not immediately enter the scene of the crime, but took out a piece of chewing gum from his pocket and chewed it slowly.

Lin Lei seemed to be thinking about something important, and the whole person fell into deep thought.

Lu Yun and Qiao Yan stood beside him, and Tian Chuan stood behind him, but no one spoke, and everyone was afraid that it would affect Lin Lei's thinking.

Qiao Yan brought her forensic suitcase today - this box was provided to her by the forensic doctor of the University of the United States, Inspector Mike, which contained the world's most advanced testing instruments and reagents. Whether it is physics or chemistry, there are many advanced things that are not available in Huaxia or the police.

As long as Lin Lei gave an order, Qiao Yan could immediately start a new round of on-site investigation, but-

Lin Lei didn't say a word, and Qiao Yan could only wait quietly.

Lu Yun didn't watch the scene, she kept watching Lin Lei......

What Lin Lei was thinking about was the question that Lu Yun was most concerned about.

Lu Yun once again focused her eyes on Lin Lei, and she suddenly found that Lin Lei's gaze had unintentionally or unintentionally, many times, looking at the roof of the duty room!

That's right, it's the roof!

The first discoverer of the case, Koichiro Taken, hung a mobile phone from the chimney on the roof and filmed the scene!

Chimney?

Is it that chimney?

Lu Yun followed Lin Lei's line of sight, raised his head, and stared at the chimney on the roof!

When I heard Lin Lei introduce the case before, he probably said that the diameter of the chimney was not large, and adults of normal size could not enter it - now when I looked at the scene, I immediately had an intuitive impression.

The chimney is cylindrical in shape, with an outer diameter of about 50 centimeters.

If you only look at the outer diameter, then as long as you are not too fat, you can enter and exit normally. However, the chimney has a thickness, and the key to getting in and out of the chimney is not the outer diameter, but the inner diameter.

Obviously, the chimney should be built relatively thick, and the inner diameter is not large, so it is difficult for adults to get in and out......

Sure enough, Lin Lei suddenly spoke.

Lin Lei turned his head to look at Tian Chuan Police, and asked in a very calm tone: "Tian Chuan Police, what is the inner diameter of the roof chimney?"

Tian Chuan was very clear about the details of this case, so he didn't think about it, and replied directly: "Mr. Lin, the inner diameter of the chimney is twenty-two centimeters. ”

With an inner diameter of 22 centimeters, adults will definitely not be able to enter.

Lin Lei nodded and walked straight to the corner. In the corner, there is a ladder. The ladder was very old, and it was clear that it was from the scene of the crime.

It was with the help of this ladder that Takekoichiro climbed to the roof......

Lin Lei climbed onto the roof himself, while the others waited for him below.

The house is in a bit of a state of disrepair, and it is not suitable for many people to climb on the roof to investigate. Lin Lei goes up alone, it's not a big problem, it's very dangerous for everyone to go up.

After Lin Lei climbed onto the roof, he quickly came to the chimney. Except for the eaves, the roof of the entire duty room is a horizontal plane, and there is no slope, which is no different from walking on the ground.

Coming to the chimney, Lin Lei focused on checking the inner diameter of the chimney.

With only a cursory glance, Lin Lei knew that what Tian Chuan said was not wrong at all. The inner diameter of the chimney is also twenty centimeters, not to mention entering people, even adults stretch out one leg to get in.

At that time, the Hokkaido police also carefully inspected the inner wall of the chimney, and there were no traces of climbing at all, so it could be ruled out that people entered and exited the chimney.

Merely......

Lin Lei's eyes stared at the bricks on the inner wall of the chimney, and his gaze deepened.

The inner walls of the chimney were not smoothed with cement, and the brick walls were still in their original state - the point is that there were gaps between the bricks and the bricks......

If, just say that if-the means of arranging the secret room with the "fishing line" that often appears in the detective or TV series can completely form the original state.

This case is somewhere between a secret room and a non-secret room.

The key to the room is only available to police officers such as Koichiro Take.

If the police themselves have no problem and are not the suspects in the case, then this is a case of murder in a closed room.

If the police commit a crime, of course, it will not be a secret room, after all, these policemen in Beetsu Town back then had the keys to the room.

As for the nature of the case, Lin Lei has his own judgment.

This is definitely a vicious serial murder case, not some XING suffocation, death......

In fact, through a large number of investigations, the police also believe that this is a serious criminal case, so they will ask the detectives of the United States to help solve the case. It's just that the great detective of the United States, Inspector Mike, is unwilling to wade into this muddy water, and recommends Lin Lei to come to solve the case.

Lin Lei quickly got off the roof and returned to the group.

"Lin Lei, did you find anything from above?"

"BOSS, do you want me to go up and survey again?"

Lu Yun and Qiao Yan couldn't wait to throw the question at Lin Lei, but Lin Lei just shook his head and didn't answer.

Lin Lei glanced at the Tian Chuan police officer, and suddenly asked: "Tian Chuan police officer, regarding this series of cases, the police have been investigating for several years, has there been any suspect who has emerged?"

This is the core of the problem.

Betsutsu is not a big town.

In such a small place, or a relatively isolated place, if a serial murder case occurs, it is actually easy for the suspect to emerge.

Of course, this is only about the suspect, not about the murderer.

The difference between the murderer and the suspect is well known. For example, people who appeared near the scene of the crime during the time period of the crime can be called suspects. The murderer is different, these are two concepts.

Tian Chuan took a deep breath, nodded slightly, took out a pile of materials from the document bag in his arms, and handed it to Lin Lei: "Mr. Lin, this is the person we have found out that may be related to the case." There are more than 20 in total, but the more suspicious ones are just a few people in front. You can see the specific situation by looking at it. ”

Lin Lei took the materials handed over by the Tagawa police and looked at them carefully.

Of course, the materials were all in Japanese, but Lin Lei looked stress-free.

Lin Lei was taken aback at the first glance when he saw this material-

The first in line among all the suspects is actually a woman!

That's right, it's a woman!

Yoshiko!

These thousand percent are female names.

Lin Lei took a closer look, and it turned out that the full name of this Yoshiko was Kagawa Yoshiko!

Her profession is actually a priest.

There is a small temple in Beetsu Town, and the temple is dedicated to the god Hyakome.

Kagawa Yoshiko is the priest of this small temple, and according to Huaxia parlance, he can also be called the abbot.

The point of the point is that Yoshiko Kagawa is only twenty-one years old!

How could such a young girl be a priest, and she was also the "abbot" of the temple?"

Lin Lei couldn't wait to flip through Kagawa Yoshiko's materials, and the more he looked at it, the deeper the doubts in his heart became......