It contains "chlorpheniramine", which can make people extremely sleepy, and it is not as strong/strong as ordinary narcotics, and there will be no residue on the body after use.

Yang Bing took off the bottle caps and put them on Huarong, Du Zhishan, and Du Ke's nose respectively for half a minute.

Let the gas of the medicine enter/enter their blood along with the breathing of several people.

After finishing, Yang Bing's movements suddenly became casual.

She closed all the windows in the room tightly, and opened all the doors of the bedroom.

Then, he came to the kitchen and turned on the natural gas switch.

After the natural gas in the room reached a certain level, she quietly put on her shoes and left the room.

She didn't walk out of the building right away, though.

Instead, he waited quietly outside Du Ke's house.

After the general natural gas reaches a certain concentration.

A normal person will be unconscious within 5 to 10 minutes.

Shock within 10 to 15 minutes.

More than 15 to 30 minutes, heart failure, brain death.

When gas poisoning occurs, the patient initially feels headache, dizziness, nausea, vomiting, and weakness.

When he realizes that he has been poisoned, he usually struggles to get out of bed, open doors and windows.

But generally only a few people can open the door.

Because most of the patients will develop convulsions/convulsions, coma, and shortness of breath quickly, which will restrict their actions.

However, just to be on the safe side, Yang Bing had used "Pulmin" to knock Du Ke and the others into a coma beforehand so that they wouldn't wake up due to shortness of breath.

Yang Bing was just outside the door, waiting quietly for forty minutes.

She didn't hear the sound of struggling in the room. She opened the door slightly and felt that the gas inside was extremely strong. Then she nodded, closed the door and left the building.

Then, by the same route, they dug out the fence of the community.

With a calm expression, Toyota left Shuangwan International and disappeared into the night.

So far, there is only the last ending that has not been resolved.

That is Cui Xiaowei whose trunk is tied up.

But this is easier for Yang Bing.

She has already thought of the ending method, which is to make Cui Xiaowei into a drunk driver who fell off a cliff and died...

Yang Shuhe didn't sleep well that night.

It wasn't that he was worried about Yang Bing's actions.

It's because of the smell of the hospital, which is really bad, and because grandparents have to get up at night to go to the bathroom.

He didn't make his father tired. His father was old and took care of his grandparents for several days. He never had a good rest, so tonight, he personally supported and served him.

The old man used to urinate frequently, so he had to wake up every two or three hours, so it was no wonder he could sleep well.

At three o'clock in the middle of the night, he received an email from Yang Bing.

Even if he knew that the matter had been resolved smoothly, he didn't show any excitement.

Really tired!

In the morning, just after six o'clock, Yang Shuhe got up from the folding bed rented by the hospital.

He has to go back to make "longya rice" porridge for his grandparents.

……

Half past six in the morning.

Shuangwan International Community.

The twentieth floor of six buildings with four units.

Duan Hongliang, [-] years old, is going out to do morning exercises in the community.

However, when he just walked out of the room, he suddenly smelled a pungent gas smell from room T201.

Immediately knew something was wrong.

Duan Hongliang first slammed on the door of room T201.

There was no reaction in the house.

Duan Hongliang acted decisively and called 110 to call the police.

Duan Hongliang's movement also shocked several residents on the same floor.

They came to check on the situation.

It's human nature to watch the fun.

But even though they called 110, the gas accident was dealt with by the fire brigade.

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