Among the four villains of the barren mountains, Takato is the oldest, approaching forty, and Dr. Li is the youngest, who has only passed the age of the weak crown. But among the four villains, the most famous murderer is the youngest Dr. Li, and he is also the one with the highest education, and he must be the one who kills the most.

His name is Dr. Li, and he is actually a real doctor. is not only a doctor, but also a phoenix man, a noble son from a poor family. From the day of literacy, he is the most outstanding among his peers, and he is also the most motivated and diligent.

Dr. Li's family is not well-off, his parents died young, and he has only one grandmother at home. Dr. Li has been dependent on his grandmother since he was a child, and Dr. Li is so sensible that he is inseparable from his grandmother's education.

Dr. Li's family is poor, and Dr. Li's grandmother is old, and it is inevitable that there are some physical problems, such as asthma, and coughing all the time. Coupled with years of hard work, this body is getting worse day by day.

Dr. Li tried his best, but he didn't have the money to treat his grandmother. I went to the doctor, but I didn't have any money, Dr. Li was still a ten-year-old kid at the time, where did he go to get money?

Dr. Li had no choice but to kneel in front of several big families in the city, crying, and begging at the door of the house: "I, Dr. Li, am willing to sell myself to you, and be a cow and a horse for the rest of my life, just ask you to see my grandmother."

"Go, go, what's the use of who wants you! A poor man who wants food, get out of the way, don't stand in my way." The Zhao family's shop drove him away.

". Don't stain the steps of our house. "The janitor of the Qian family is more horizontal than a dog.

The Sun family never opened the door at all.

The Li family was more direct, and a stunned young man came out and beat the little Dr. Li half to death.

Dr. Li, a scholar, is still a very strong student with excellent grades, and kneeling down to sell himself is already a great torture for his spirit. Now there are people who insult him and beat him, which makes Dr. Li even more painful.

When Dr. Li knelt in front of the doors of the city's big houses for a day, there was still no progress. When she got home, her grandmother was even more distressed, took his hand and said, shedding muddy tears and saying, "Let's not go, don't go, grandma is a lot older, and it's time to go"

Dr. Li also took his grandmother's hand and wailed, feeling that he was useless. What's the use of having good grades? What's the use of being filial? At a critical time, you can't do anything.

The next day, before dawn, Dr. Li went to kneel in front of the door of the big family again, hoping to get some sympathy and alms, in order to treat his grandmother, in order to see a doctor for his grandmother, Dr. Li had already given up. But it was still in vain, and after three or four days, I still didn't get a penny.

Eventually, Dr. Li's grandmother couldn't survive it, and one night, when Dr. Li came home, her grandmother was already cold. Dr. Li hugged his grandmother's corpse, but did not cry.

Dr. Li personally dug a hole in the field for his grandmother with his hands, and the fingers of both hands were bleeding, but he still did not stop. When it came time to bury his grandmother, Dr. Li vowed to be the most powerful man possible.

At this time, what was buried with my grandmother was Dr. Li's conscience.

Since then, Dr. Li seems to be a different person, stronger and harder. At the same time, people have become hypocritical, snobbish, ruthless, and unscrupulous in order to achieve their ends. In Dr. Li's eyes, there is no conscience, only interests. As long as there are interests, no matter what, he dares to do it.

Dr. Li, who has been studying hard in his studies, was already a master's student at the age of fifteen, and by the time he was twenty years old, he had already obtained a doctorate degree in medicinal chemistry from the highest university.

At this time, he was not looking for a job, because his own ideal was a career. A high-achieving student with a doctorate in medicinal chemistry has developed a new drug in just a few weeks, which has not yet been banned by law.

This drug is a bit like "laughing gas". "Laughing gas", the chemical name is nitrous oxide or nitrous oxide. In addition to being used as an anesthetic, it can be used as an aerosol spray for hair growth cream and cooking spray in the food processing industry, and can also be used as an accelerant for automobile engines, rocket oxidizers, etc. The cream guns that can often be seen in cake shops and cafes rely on "laughing gas" to beat the cream into a thick foam.

"Laughing gas" is not harmful to humans when used in food processing, but "laughing gas" has a mild anesthetic and anxiety-reducing effect, which is the main reason for recreational use or abuse by teenagers. The euphoria usually disappears within a few minutes, and the side effects of "laughing gas" include instantaneous vertigo, arrhythmias, hypoxia, impaired memory and cognition, physical weakness, etc., and abuse of laughing gas may also lead to poisoning death.

The "Measures for the Listing and Management of Non-medical Narcotic Drugs and Psychotropic Substances" promulgated by the state also include a number of narcotic drugs and psychotropic substances that are not drugs under supervision, but "laughing gas" is still not among them. Regulation of laughing gas is not currently on the agenda, which means that buying and selling "laughing gas" is a legal business.

It's just that Dr. Li made it hundreds of times more powerful than this "laughing gas". And this thing is a hundred times more expensive than "laughing gas", and ordinary people can't afford it. Only the sons of those big families, the "rich second generation", can afford to consume. And under his design, almost overnight, the "rich second generation" of the whole city became obsessed with this thing.

Soon, in major cities near and far, well-to-do young people from well-to-do families made it fashionable to smoke the gas. If someone at a young person's party doesn't suck it, it must be because he has no money, or he has no knowledge, is too dirty, and is too humiliating.

In just a few years, Dr. Li has become the richest young man in the city and the most valuable young entrepreneur in the city. He was a rich man, but also a rich man who hated the rich.

Dr. Li hated the rich to the core, believing that "those who are rich must be unkind" and "those who kill the rich are helping the poor". And those who have obtained wealth are also in fear all day long, and if they are not killed in secret, they will be defeated by Dr. Li's financial means, and the worse thing is, of course, that the family property will be destroyed by his son, who can no longer take care of himself. There is always a reason for the so-called "rich for three generations".

Of course, Dr. Li does not hate all the rich. For example, Yuan Longping has a lot of money, and Dr. Li doesn't hate him in his heart. His hatred is only part of it, and if he were poor, he would be equally hated for doing the same.

He's not a drug lord because he's not breaking the law, he's just a professional who runs a chemical plant.

He is also an out-and-out villain, a criminal in the moral court. His products will forever lose the ability to take care of themselves after making people flutter.