After hearing nantiao Fuguo's analysis, Mumu police department also hesitated about the previous judgment, but out of trust in Kudo Xinyi, he still treated this case as a homicide case.

Seeing that nantiao Fuguo, who was going to be a professional, was speechless in the rebuttal of the Mumu police department, she said proudly, "what? If you find out, can you release our guests as soon as possible?"

What nantiao Fuguo said is very reasonable. In the darkness just now, it is really impossible to make the art lamp fall to the set goal without moving, but Pisco still completed the plan. How did he do it?

When Bai Yan Zhenyu was thinking about this problem, ash yuanai found the handkerchief in his hand and asked curiously, "Bai Yan, what's in your hand?"

Baiyan Zhenyu spread out his handkerchief and explained, "Oh, this is the handkerchief that just fell over my head when the crime happened..."

At this point, Bai Yan's eyes brightened because he saw the familiar words "wine roll supervision and memorial meeting" at the edge of the handkerchief, that is, this is a commemorative handkerchief issued by the staff to a guest.

When he just got the handkerchief, Bai yanzhenyu smelled a faint smell of gunsmoke from it. Combined with the faint gunfire he heard at that time and the fragments of art lamp rings he picked up, the most likely way to commit a crime is to shoot off the rings of art lamp when he swallowed his mouth and walked under the giant art lamp.

In this way, it explains why there is a faint smell of gunsmoke on the handkerchief. Obviously, it is covered by Pisco at the muzzle of the gun to block the fire emitted by the muzzle when shooting, so as not to attract the attention of the surrounding guests and expose his identity.

With such a guess, Bai Yan Zhenyu reasoned along this idea, but he couldn't think of a reason for a moment, so he had to use a hidden trick.

"Hey, Conan, there was a murder in the banquet hall just now. The specific situation is like this... At present, the only clues I have found are purple handkerchiefs and ring fragments. Next, it depends on your reasoning ability."

Baiyan Zhenyu dialed the off-site help phone and told Conan everything that happened in the banquet hall and his guess, waiting for Conan to further crack it.

"Brother Zhenyu, according to the current clues, PIs is indeed a killing plan completed by shooting, but to complete the plan, PIs must accurately shoot the art lamp ring."

After analyzing for a period of time, Conan reasoned: "at that time, the banquet hall was dark, and it was absolutely impossible to accurately hit the target as small as the ring. Therefore, there would be two possibilities, either Pisco could be equipped with night vision equipment, or the target was also very conspicuous in the dark."

"The possibility of night vision equipment is very low. After all, although the light in the banquet hall is weak, if someone stands near him, he can still vaguely see the objects on his face, which is easy to arouse others' suspicion. Therefore, the greatest possibility is to let the target, that is, the ring, be clearly exposed in the dark."

After hearing Conan's reasoning, Bai yanzhenyu showed an expression of enlightenment and immediately covered the ring fragments with a handkerchief for observation.

"Conan, you guessed right. There is fluorescent agent on the ring fragments."

Baiyan Zhenyu put away the ring fragments, and then said distressedly, "but even if you know Pisco's technique, it's not easy to find him."

Hearing Bai Yan Zhenyu's complaint, Conan at the other end of the phone smiled confidently and said, "no, brother Zhenyu, the handkerchief you got is the key to find Pisco."

Baiyan Zhenyu was in high spirits and hurriedly asked, "Oh? What do you say? There is no name of Pisco written on it?"

Conan didn't sell off and directly explained: "brother Zhenyu, according to what you told me before, it was a handkerchief issued by the staff at the time of registration, and it was divided into seven different colors according to the famous work rainbow handkerchief supervised by the wine volume. Therefore, as long as you check at the guest register, you can narrow the suspicion of Pisco to a specific range."

"I see. I'll check it now."

Bai yanzhenyu was overjoyed, then hung up the phone, went over to say hello to the Mumu police department, left the banquet hall for the reason of the above toilet, asked the staff of the guest registration office, and got the list of all the people who got purple handkerchiefs in the banquet hall.

There were seven people who got the purple handkerchief, namely, the female writer Nan Tiao Fuguo, the big boss Sanping Kangfu, the music producer tanzhuya, the bright faced belmod, the university professor Biao Fangzhi, the chairman of the automobile company Kan shanxiansan, and the host makang Zhidao.

After learning their identity, Bai yanzhenyu told Conan the identity information of these people for analysis.

"Brother Zhenyu, maicang Zhidao who presides over the work in front can be ruled out. After all, his position is too obvious. Once he takes action, it is easy to be found;"

"Sanping Kangfu, the big boss who ate the ring fragments, can't be Pisco, otherwise he won't spit out the ring fragments as a clue and make a noise to attract attention;"

"Biao Fangzhi, standing at the edge of the art lamp, can't meet the shooting angle requirements, and there is no possibility of committing a crime."

"But apart from the three of them, the other four people may be the murderer of this murder - Pisco."

After Conan's analysis, the scope of Pisco's suspicion was further reduced. After excluding belmord, who could not be Pisco, there were only the last three suspects.

At the same time, the guests in the banquet hall also made some commotion. Officer Takaki gathered around the Mumu police department and whispered, "Mumu police department, what should we do now?"

The Mumu police department was also very embarrassed. After frowning and considering for a while, he decided to say, "I'm afraid it will cause riots if we leave them here again. Although the guy told me that there will be homicides here, it looks like an accident from the current situation. I think it's better to let them leave first."

"Yes."

Officer Takagi nodded, then arranged for the police to remove the blockade of the banquet hall, and the guests left the scene by themselves.

Seeing that the police let the guests go, Bai yanzhenyu immediately changed his face. He quickly found the Mumu police department, told him the reasoning, and asked him to immediately recall the suspected Liangshan xiansan and nantiao Fuguo's bottle.

After hearing Bai Yan Zhenyu's reasoning, Mu Mu's doubts in the police department were cleared away. Without hesitation, he agreed to Bai Yan Zhenyu's request, recalled the three suspects who had left the scene for a period of time, and inquired about their situation at that time.