Before long, the police completed the investigation of the crime scene, and after questioning and investigating the people, they determined that Machida Hao was the murderer who killed Uncle Machida, and were ready to take uncle Machida's body and the criminal Machida Hao back to the police station.

"Please believe me, I really didn't mean to kill my father!" Machida Hao has pleaded guilty. He just hopes that the police can reduce some penalties for his manslaughter.

"I know. Let's talk to the Bureau. I'll listen slowly."

Officer Xiayi said he understood. Then he turned to Machida zezi and ordered, "miss zezi, you also come with us. We suspect you are suspected of abetting murder."

"What?" Machida zezi was shocked and flustered and denied: "officer, I said, I didn't instigate ah Hao at all..."

Officer Xiayi ignored Machida zezi's words and said impatiently, "well, miss zezi, whether you have committed the crime of instigation or not, we will judge according to the evidence. Now come with us first."

Seeing that officer Xiayi was ready to take the relevant personnel away, Bai yanzhenyu said, "officer, Machida Hao is not the murderer. There is another murderer."

Officer Xiayi looked back at Baiyan Zhenyu and said, "what are you talking about? Even he himself has admitted it."

Baiyan Zhenyu smiled confidently and asked, "officer, if Machida Hao is a murderer, how do you explain the glass debris on the ground?"

"Glass ballast?"

Officer Xiayi looked at the broken glass on the ground, frowned and said, "didn't Machida ho just admit it? He shot Mr. Machida with a bow and crossbow outside. The broken glass fell on the floor. What's the problem?"

"Of course there's a problem," Bai yanzhenyu nodded seriously and reminded, "since the glass was broken by arrows outside the cluster, why are the broken glass residues lined up in a straight line?"

"The reason why it is arranged in a straight line means that something should have been put here. When the glass debris breaks and splashes, it is blocked by that thing and slides down that thing into a straight line. Is that right?"

After explaining the reasons for the strange distribution of the glass chirp, officer Xiayi complained angrily: "I said you laymen are really troublesome and like to destroy the crime scene when you have nothing."

"Yes, there was a piece of tempered glass."

Bai Yanzhen Yu stretched out his hand and pointed to the tempered glass leaning against the wall. He commanded, "officer, please put that glass in front of the broken window. Naturally, you can understand my reason."

Although officer Xiayi was puzzled, he still moved the tempered glass to the window and found that it could just cover the hole of the original ground glass, and the lower edge was also consistent with the straight line of glass slag.

"Look, the toughened glass blocks the glass chirp, so it can be arranged in a straight line after falling. Look, it doesn't match very well... Wait!"

Speaking of this, officer Xiayi suddenly reacted. After comparing the window with Uncle Machida's position, he said in surprise: "you're right. There is a problem. If there is tempered glass here, the crossbow shot by Machida will be blocked by tempered glass."

"Yes, that's it. The arrow fired by Mr. AHAO hit the toughened glass. That's why there are scratches on the toughened glass and the floor."

Seeing that officer Xiayi understood, Bai yanzhenyu was not selling off. He continued: "because the tempered glass was transparent, Mr. AHAO in panic didn't notice at that time. He mistakenly thought he shot uncle Machida, and then ran away."

"I see."

After listening to Bai Yan Zhenyu's explanation, officer Xiayi suddenly realized and asked eagerly, "so where did the arrow shot on the victim's chest come in?"

"The crossbow was shot from the stove."

Baiyan Zhenyu glanced at machita Bao, whose face changed slightly, and explained: "in the heater, the coal ash in several places has fallen off, which was worn off by the murderer when setting the crossbow."

Officer Xiayi personally went to check it and found that the situation inside was indeed as Bai Yan Zhenyu said. He asked in some confusion: "even if the cross bow is set here, how can it be launched in the synchronous time?"

"Use this. I found it in the heater."

Baiyan Zhenyu takes out the small wooden block he saw before with a handkerchief, and infers the murderer's modus operandi in combination with the light color traces in the fireplace chimney.

"First, the murderer set up a cross bow in the heater, then clamped a small wooden block bound with thin wire in the trigger, and then fixed it with a rubber band."

"Then, the thin wire tied to the wood block is led to the outside through the pipe of the chimney. At that time, as long as the thin wire is pulled, the wood block blocking the trigger can be separated, and the trigger will be pulled under the elastic force of the rubber band, so as to launch a crossbow."

"The murderer holding this line can observe the position of Uncle Machida through the skylight, then pull the thin line when Mr. AHAO launches the crossbow, launch the crossbow that really killed Uncle Machida, and after Mr. AHAO escapes, enter the room from the window and remove the tempered glass."

After Bai yanzhenyu explained the modus operandi, he said with a light smile: "the light color marks rubbed by the thin line in the chimney and the coal ash stained on the crossbow can well prove this."

"It seems that this is a planned murder."

Officer Xiayi became serious and looked at machita Bao and Machida zezi, trying to find out the real prisoner.

"Yes, Mr. AHAO can rule out the suspicion, so the person who can set up this mechanism and take the crossbow later..." Baiyan Zhenyu turned to machita Bao and asked, "it's you, Mr. apo."

The strange distribution of glass chirps, traces on reinforced glass and wood floors, small wood blocks in the heater, light colored traces in the fireplace chimney and the Red Crowned Crane sketch painted by machita Bao all point to the real murderer, machita Bao.

Machita Bao's face changed greatly and denied, "how could it be me? At that time, I painted red crowned cranes at the feeding ground."

"Mr. Bao, the reason why I doubt you starts with your paintings, because there are many common sense mistakes, such as the Red Crowned Crane's tail is not black, and its head is not facing the upper air outlet when sleeping..."

After Bai yanzhenyu pointed out the mistakes in the painting, he sneered: "your sketches should be drawn according to your imagination with reference to the specimens in the room. They were already drawn a few days ago. The former mold maker took a blank sketch book to show us. The purpose is to make an alibi. Am I right?"

Machita Bao's forehead burst into a cold sweat and struggled to defend: "it's true that my painting is wrong, but with this alone, you can't prove that my painting wasn't painted in the feeding farm today?"

"Evidence, of course."

Baiyan Zhenyu picked a corner of his mouth and said two key evidences that he was the murderer.

"First, there are no fingerprints left on your sketch book when I was in the hot spring. As long as you search in your room, you should be able to find a blank sketch book with my fingerprints."

"Second, the feather in the buttock pocket of your pants is a pigeon feather nesting on the chimney. I think you inadvertently clamped it together with the emission line in your pants pocket when you took back the radiation. In addition, there should be some coal ash in your pants pocket."

In the face of irrefutable evidence, Machida Bao finally bowed down and pleaded guilty, admitting that he designed to kill Machida's uncle, and framed Machida Hao and Machida zezi, so as to deprive them of their inheritance rights and swallow the 300 million yuan inheritance of Machida's uncle.