Hosui serikawa stood on the side with his hands drooping, staring at Gao Cheng's serious discussion with police officer Henggou.

"If the murder weapon is a thin thread, it's either hidden, or rushed into the sewer or burned directly. It's not likely to be found. Maybe it's much more convenient to investigate the source of the murder weapon..."

Gao Cheng temporarily puts down the murder weapon, continues to observe at the scene, and notices that there is blood on the shower head in the bathroom.

Connecting the previous clues together, we can see that 10 minutes before the crime, the murderer entered the room under the duck and took a bath in the bathroom. After that, he cheated the duck into the bathroom, attacked the duck's back with a shower head, and then took the opportunity to entangle the duck's neck with a thin thread. However, he was secretly photographed by the duck before taking a temporary photo

"Isn't this a movie with Hui Henggou picked up a video tape in front of the TV set and said, "how could there be this?"

"That video is rented by Mr. yaxia," the police officer explained. "It seems that this hotel has a rental service for tenants..."

"That is to say, Mr. yaxia has seen this tonight."

Henggou looks tight and inserts the video tape into the player.

"I don't know if there will be any clues..."

Gao Cheng starts to watch the video.

The film is a horror film called "the steps of the primary school". Henggou looks at the strange picture on the screen and changes his face instantly. His forehead is in a cold sweat.

"This... This movie looks scary..."

"Officer, are you afraid?"

"How, how..."

An hour and a half later, Henggou teeth trembled to see the end of the movie, turned to Gao Chengqiang and said with a smile: "ha... Ha ha, it's very interesting... But there seems to be no clue..."

Ignoring the stiff smile, Gao Cheng thinks about picking up the video box, looking at the 94 minutes marked above, and then looking at the movie that ends in 93 minutes.

"One minute less..."

"Ah?"

"Most movies have a beginning, at least they have to release movies, companies and creators, right?" Gao Cheng tried to replay the video and said, "Mr. yaxia, this video is one minute less than normal..."

"What's the matter?" he said vaguely

Gao Cheng put the videotape box on the table, raised his eyelids, and said: "if other videotapes are normal, there is only one possibility. The murderer may have cut a one minute long tape and used it as a murder weapon. Just check whether there are any adhesive marks in the videotape."

"But the black thread in the picture is as thin as a kite... Is it twisted together?"

"It's not so troublesome. In fact, you just need to stretch the tape hard. The video tape has good extensibility. It's 80 cm in length in one minute and can be pulled to more than 2 meters. It's more than enough to wrap around the duck's neck as a murder weapon, and it's easy to handle because it's flammable..."

Gao Cheng gets up and walks to the bathroom door.

"Moreover, the reason why the murderer put the corpse under the duck in the bathtub should also be convenient to wash off the magnetic powder left by the tape on the duck's neck to avoid showing traces. Now the biggest problem is..."

Gao Cheng's eyes swept over the wound on the back of the duck's head and turned to the shower head hanging on the wall. The clues in his mind seemed to be strung together and quickly flashed a bright line.

"The reason why the killer didn't wear clothes... Should be to avoid the blood splashing on the clothes under the duck, so he would enter the bathroom under the excuse of taking a bath..."

"Police department!" A police officer came back with a test sheet and said, "the test results came out. The blood on the shower nozzle was consistent with the blood type under the duck. The killer really stung the victim with the shower nozzle before strangling him!"

Henggou spirit: "detective Chenghu, you are right! But even so, there is still no way to determine the prisoner.... "

"Who are the prisoners... I already know."

"Oh, I see... What?"

Henggou's body shape is like a meal. He stares at Gao Cheng with thick eyebrows.

"Already, already know?"

"As long as you avoid preconceived ideas and start from the origin again, it's easy to think clearly..."

Gao Cheng turns to the three waitresses who are brought over together and raises their fingers in their puzzled eyes.

"Yes, if that spot in the photo is not a mole, everything will make sense... Don't go to Zhizi, the killer is you!"

"Me?" The waitress with short hair turned pale. "Detective Cheng, detective Chenghu, what are you talking about? I don't have a mole on my chest..."

"There are no moles, but..."

Gao Cheng took duck's mobile phone.

"The spot in front of the murderer's chest is not a mole, but the blood splashed on the body when you beat the duck's head with the shower nozzle. It seems that it is easy to be mistaken for a mole, but only when you see the picture, you know that it is the blood that has not been dealt with in time..."

"Wait a minute!" Sanzhi Chaoxiang came forward and said, "why do you say that? Didn't she take the initiative to show you her chest? "

"That's why," Gao Cheng calmly looks at the silent BIE Suo Teng Zhizi, "the blood stains on his chest were washed away when he entered the open-air bath, but the blood stains on his clothes were not dealt with. If it was really checked, it would be easy to find, so he would seize the collar and open his chest, Let the police confirm that there is no mole can avoid the body search... "" how, how... "Sanzhi Chaoxiang speechless, doubt to look at the short hair Hostess:" dengzhizi... "Henggou back to God, face seriously opened the short hair hostess left Neckline:" kimono inside there is a little blood! Sure enough, it's you, Wen Zi, the mother of He Hui, who threatened he Hui Jun's office and killed the people under the duck... What else do you have to say now? "“ I was just joking at first... "The short haired waitress bit her lip and lowered her head“ Because his abandoned child became famous, he reluctantly sent a postcard... I want to separate Hehui from such a mother, maybe it's jealousy, because I can't have a child... "" so to speak... "" yes, I'm not Hehui's mother, and Hehui's father is not a murderer, I just want the office not to give the postcard of Hehui's mother to Hehui any more... "Don't overdo it“ However, after a period of time, I actually had money to deposit into my account. When I didn't know what to do, the duck came to me... I called this room to explain to him, but the guy laughed and said that even if it was fake, it could squeeze me to death... "I was really scared." Yu Guang, a short haired waitress, looks at three branches of incense“ However, a woman's yearning for children should be more or less experienced... "Let's talk about the rest in the police station," officer Henggou nodded, turned to Gao Cheng and said, "well, detective Chenghu, can you go to the police station to help take notes?"“ No, anyway, I'm not the one who called the police, and you all know the case, "Gao Cheng looked at the little kid lying on one side sleeping," and there's this kid I need to take care of... "" er... "Henggou thought of the police rumor, this young detective really seldom takes notes and so on. It's really..." well, I'll get in touch with him if there's anything else. "“ It's already 3:30... "Gao Cheng yawns and walks out of the murder scene with the sleeping kid on his back. What kind of evil has it done? Why are you taking care of kids or kids recently? All the famous detectives are becoming nannies... Sanzhi Chaoxiang stops in the corridor and silently watches Gao Cheng pass by. When he looks at serikawa and Hui, a trace of softness flashes in his eyes“ Are you Wenzi, the mother of Hehui? " Gao Cheng suddenly turns around“ "Ah?"“ The boy still remembers that when he was held by you, he watched the mole and listened to the sound of cutting vegetables while he fell asleep, but he made a mistake... "Gao Cheng said calmly," he Hui was probably held up in church, but most housewives would not cook with their children in their arms. In fact, he was carried on his back, that is to say, His real mother is you with a mole on the back of his neck... "Sanzhi Chaoxiang's eyes are dim:" I... "" I'll explain to his office, "Gao Cheng said with a smile." after being blackmailed, the office didn't give the postcard to Hehui, but it shouldn't be in the future. Go on writing. Although the kid said he didn't like it, But making the postcard dirty and wrinkled is the evidence of repeatedly reading while crying. I'm sure I want to receive the postcard you sent me again... "" Xiaohe... "Sanzhi Chaoxiang sobs and looks at Gao Cheng bringing serichuan and Hui back to Room 308. Don't wipe the corner of his eyes“ Thank you, detective city doo