I want to be a super cop

Chapter 567 Accomplices Are Not Human (Thanks for the reward, thanks for the monthly pass!)

"Why am I so naive!"

Ah Xiang puffed her mouth a little unconvinced, and her pretty face deliberately put on an unhappy expression.

"Any industry has its own rules, similar to their apartment, and it is still a chain, even if the room is rotten and empty, people will not rent it out at a lower price."

Zhong Tianzheng smiled and shrugged his shoulders: "To give a very simple example, there must be many shared houses in Shangnan City now. It is very common for a two-bedroom and one-living room to be converted by the second landlord into a three-bedroom and four-bedroom apartment. There are also many five-room apartments, which are rented out to different groups.”

"Like apartments, they are usually rented by white-collar workers or young couples. If you need them, they will come to rent them if you don't give them a discount. If you don't need them, your discounts will not be effective. It's better to maintain the brand effect."

"Similar to this kind of apartment, the rent is much higher than that of a shared house. If you calculate the water and electricity bills, they must charge the electricity bill at one yuan and five degrees, which is more than two or three times higher than that of civilian use. Especially In summer, once the air conditioner is turned on, hundreds of dollars will disappear in a month, so how can there be such a good market.”

"Forehead"

Ah Xiang clicked her tongue when she heard the words, and it took a long time before she said quietly: "How do you know so much? Did you work as a real estate agency before?"

"Don't worry, I can't earn that money."

Zhong Tianzheng waved his hands and stopped talking, standing directly under the monitor, squinting at the entire passage, thinking about everything.

"You said the wild boar Peppa's balloon, who put it up?" Ah Xiang also looked up at the monitor, her eyebrows slightly clustered: "Could it be the murderer's accomplice, the two colluded, the murderer is in the house Give him the signal, and he lifts the balloon up?"

"not necessarily?"

Zhong Tianzheng's tone seemed to be answering Ah Xiang's question, but also seemed to be asking himself: "Two people appearing together on the scene, the goal is too big, and it is easy to make people suspicious."

"Then who put this wild boar page?"

"Maybe it ran up by itself."

Zhong Tianzheng whispered, staring blankly at the camera in the corridor.

Because the floor is not very long, only two probes were set up when the apartment was set up for floor monitoring.

One is facing the elevator.

One is facing the corridor passage.

It can not only grasp the situation of the whole floor, but also won't appear redundant equipment.

and so.

There is no picture to see what will happen under this monitor.

……

Soon.

The elevator door opens.

The cleaning aunt came over under the leadership of the apartment manager. Looking at the group of people in police uniforms, she couldn't help feeling a little flustered. She grabbed the hem of her clothes with her fingers, feeling uneasy.

"Don't panic."

Zhong Tianzheng took a step forward and spoke first before the police officer spoke: "I came here to ask you a question. It's very simple. Once I ask it, everything will be fine."

"okay."

The cleaning aunt nodded, and glanced at Zhong Tianzheng's sunny smile, feeling that kind of affinity, her whole expression relaxed a lot.

Zhong Tianzheng asked: "This morning, you came to do the cleaning, right?"

"Yes."

"Then you found some balloons with Peppa the Boar, and you pulled them away, right?"

"Yes."

The cleaning aunt spoke a little faster and explained: "I thought no one wanted it, so I took this balloon back to my granddaughter to play with. If you are here, I will go get it back and return it to you now. "

On the way here, she heard about what happened in the apartment. Now that the police called her over, how could she not panic, even if it had nothing to do with her.

"Auntie, didn't you tell me, don't panic."

Zhong Tianzheng smiled and shook his head: "What I want to ask you is not this, what I want to ask you is, when you went upstairs to the fifth floor and saw the balloon, did you notice any difference on the ground below it? Yes."

"Different? No."

The cleaning lady looked at Zhong Tianzheng suspiciously and shook her head in denial: "There is no blood, it is just a very clean thing."

"Is there any water stains on the ground!"

Zhong Tianzheng was afraid that he would mislead his aunt if he said it directly, so he asked her to recall it by herself.

As a result, the cleaning aunt kept thinking about the case, so he had to take the initiative to express his conjecture: "There is a puddle of water on the ground that has not dried up, and then, the rope at the end of the wild boar page balloon is tied with a knot, similar to Knots that tie things."

"Correct!"

The cleaning aunt responded excitedly: "You are so right. It was exactly the same as what you said at the time. When I came up, I saw this wild boar's balloon and pulled it down. As a result, water came from under my feet. Sound, I saw that there was a puddle of water, so I mopped it up."

"???"

A hint of surprise flashed in the eyes of the police officers nearby.

Xin said how Zhong Tian knew there was a puddle of water below.

"Row."

Zhong Tianzheng nodded and asked: "Is the balloon still there? You can return it to us later."

"Don't worry, it's still there."

Aunt Cleaning nodded: "At that time, I thought the knotted rope was ugly, so I cut it when I got home."

"..."

Zhong Tianzheng was speechless for a while.

What he wants is this string of knots, so that he can deduce when the murderer left.

"How about this, a comrade will go back with the aunt in a while, bring back the string of knots, and send it to the technical department."

Zhong Tianzheng gave an order, and then noticed the confused eyes of everyone, and explained: "At the beginning, I was wondering if there were accomplices outside to help him set up this wild boar Peppa's balloon rising up to block the camera. "

"But then I overturned this idea. If there is only one murderer, then the wild boar page's balloon can be raised by tying a piece of ice underneath it, as long as the weight of the ice is greater than the stretching force of the hydrogen. The balloon won't go up."

"As time goes on, the ice gradually melts, and when it melts to a certain extent, the balloon will naturally rise up to block the camera. As long as the murderer calculates the time, he can come out of the room without being seen by the camera. "

"Yup!"

"That's the truth!"

Under Zhong Tianzheng's explanation, everyone suddenly realized.

The cleaning aunt said there was a puddle of water on the ground, which was exactly in line with Zhong Tianzheng's conjecture.

"Last night, the temperature was about 23 degrees. The indoor temperature may be a little higher, but the difference is not bad. Take the balloons back and calculate the stretching force of the three balloons, and then calculate the approximate size of the ice cube based on the knots. size."

"The temperature is constant, and the melting speed of the ice cube is related to its surface area. As long as the melting time is calculated, it can be determined when the murderer left."

"Determining the time when the murderer left, we can filter out the surveillance of the entire apartment and even the surrounding roads at that time, and catch this person."

(End of this chapter)