After Wu Jing and Ma Long separated, they went to the laboratory department, and sure enough, there was a new discovery, three syringes and a medicine bottle, after the comrades of the laboratory department, the medicine bottle was a general cold medicine. One of the syringes was concluded to have come from inside the hospital, and the residue on it was penicillin, which was common in hospitals, while the other two syringes, one was injected by a hypocrite* and the other was copper acetyl arsenite.

The case is already very clear, Wu Jing's guess is not wrong, and she has also asked the comrades in the laboratory department that this chemical of copper acetyl arsenite is normally a solid state that can be dissolved when encountering water.

Moreover, this chemical is highly toxic, once it touches a person's skin, it will inevitably cause major traumatic skin damage, and if it is injected into the human body, then the person is basically hopeless.

After coming out of the laboratory department, Wu Jing made a phone call to the sanitation worker's daughter, first politely said a few words, and then asked her which trash can the sanitation uncle fainted from.

Uncle Sanitation just touched the syringe that had been injected with copper acetyl arsenite, the poisoning was not too deep, at this time Uncle Sanitation had come to his senses, he took the phone and told Wu Jing that he fainted from the trash can across the road from the Medical Building, Wu Jing asked when he fainted, and the sanitation uncle told him that it was around half past eight in the morning, Wu Jing hung up the phone after thanking him, and then went to the Transportation Bureau.

I just dealt with the people over there, so Wu Jing successfully got the traffic surveillance video near the medical building at about half past eight in the morning, and sure enough, he saw the situation of the sanitation uncle fainting in the video, and then was rescued by a taxi driver, which is basically the same as the description of the sanitation uncle and his children.

Pushing the video forward again, after more than an hour of screening, a gray Hummer off-road attracted Wu Jing's attention.

The Humvee apparently paused for a few seconds at the trash can before an arm poked out of the front right window and a small white object was thrown into the trash can.

The picture in the video was frozen, and Wu Jing enlarged the picture, but because it was night, the person sitting in the car threw something into the trash can and couldn't see it clearly, the license plate number was local, and the numbers behind it couldn't be seen clearly.

Wu Jing's brows were tightened, and Captain Qian of the Transportation Bureau patted his thigh attentively, saying that this matter was easy to do, and he immediately looked for the owner of the Hummer off-road on the traffic intranet, and found out a few, and the car was gray, and after a simple elimination, there were three left.

Among the three heads of households who own Humvee off-road vehicles, one of them is named Sun Erlin.

Wu Jing asked Captain Qian to call up Sun Erlin's household registration information.

Sun Erlin, male, 38 years old, Chinese, Han, born in the third group of Lianshuigou, Hulan County, Jiangcheng City, Jiangdong Province.

Further on, this Hummer off-road was driven from the hospital and stayed in the hospital parking lot for about fifteen minutes.

Wu Jing became excited after getting this information, and it seemed that her guess was correct.

After he came out of the transportation bureau, he drove straight to a rural village on the border of Jiangcheng.

Previously, he had already inquired about He Tao's home address from the public security intranet.

After galloping all the way, half an hour later, Wu Jing arrived at a village called Songjiazhuang.

Under the old locust tree at the head of the village, several old men and old ladies were chatting, Wu Jing parked the car on the side of the road, and then walked over and asked politely: "Uncle, may I ask, is there a person named He Tao in your village?"

"He Tao, who are you?" the uncle looked at Wu Jing vigilantly.

"I'm a friend of his, and I heard that something happened to him, so I came to see him. ”

The simple rural uncle easily believed Wu Jing's words, and pointed to the west: "You go west along this road, go to a crossroads, then turn north, and then go to the end, the red gate is very recognizable." ”

"Thank you, uncle. ”

Wu Jing thanked her and turned around to leave, but at this time, she heard a few people talking in whispers, saying that He Tao's death was too tragic and unjust.

Wu Jing, who heard this, frowned, he hesitated for a moment, turned around, and pretended to be surprised: "Uncle, what did you just say, my friend He Tao, he is dead......"

"Hey, don't mention it, don't mention it. The rural uncle waved his hand again and again, shouting tears in his eyes, and he didn't know if it was choking on the drought smoke or because of He Tao's death.

"Uncle, what's wrong, I was still having dinner with He Tao last month!" Wu Jing grabbed the uncle's hand tightly and said in a hurry.

"Hey, three days ago, a car sent Xiao Tao home, wrapped in a white cloth, the person had already died, all the injuries on his body, it was his colleagues who sent him back, saying that he had been robbed, Xiao Tao had no money, was killed by bad people and thrown into the Huai River, and was seen by the fishermen who were fishing in the river. ”

The fisherman took a puff of the cigarette on his mouth and continued: "If you want to say that the boss of Xiaotao is really interesting, seeing Xiaotao work with him, he also gave him 100,000 yuan to settle in. I have long told Xiao Tao not to associate with those indiscreet people in society, but this kid just doesn't listen. You see something is going on now!"

Wu Jing, who heard this, quickly understood what was going on.

It seems that this Sun Erlin is not a bastard yet.

After saying goodbye to the uncle, Wu Jing got into the car, and according to what the uncle said, a red gate stopped at the end of the village.

This is a very magnificent two-story building, the roof is paved with glazed tiles, there are four sacred beasts in the four corners, and the square mosaic tiles on the outer wall are water, this kind of house is placed in the countryside, and it definitely belongs to the mansion. It can be seen that He Tao's family background is good.

It's just that on the red gate, there is also white rice paper, which is the custom of Jiangcheng City, if there is a funeral, this kind of rice paper must be pasted on the gate.

Wu Jing got out of the car and walked into the courtyard, and the scene in front of her made her feel a little sad.

The floor of the living room was covered with weeds, and a wooden bed was placed in the middle, on which He Tao lay with a white cloth on his body.

This is also a custom in the rural areas of Jiangcheng City, people can only be cremated after three days of death, to put three days at home for relatives and friends to come to worship, family members will sprinkle a special gray grass powder on the deceased's body, to prevent the deceased's body from being bitten by mosquitoes, or rotting.

In front of the wooden bed, there was a porcelain basin for burning paper, and the yellow paper money quilts were still inside, and a woman wearing a white cloth and a white hat was hiding her face and crying bitterly for her husband.

Beside the girl was a little girl of about three years old, also dressed in a white cloth and wearing a white hat, and she was fiddling with a doll in her hand, and she probably didn't know why her mother was crying, and she didn't know that her father was lying there, and he would never get up.