Just by proposing such a key person, Lin Feng didn't need to listen to Zhao Bingtao.

Because this was a case of an acquaintance committing a crime, Lin Feng guessed from the scene that when the victim was killed, he obviously saw clearly from upstairs that someone had come in from outside the community downstairs.

Zhao Bingtao's wife Li Hong has no acquaintances, and she usually has no friends, but now according to what Zhao Bingtao said, she actually has a younger brother.

This is certainly a key figure in this case.

"Brother Feng, I'll check it out right away!" Wu Liang finished speaking, and quickly walked out.

Zhao Bingtao was taken aback, looked at Lin Feng and said excitedly: "The murderer can't be my wife's younger brother, what reason does he have to kill his parents?"

"It's hard to make a conclusion now, and we have to bring him back for interrogation. Lin Feng said.

"I didn't remember that my wife also has a younger brother, that's because that younger brother, for my family and even for my father-in-law, is a complete stranger, even if it is the New Year, the younger brother does not go home, all the year round, after a long time, our relationship is estranged, I also just suddenly sounded. Zhao Bingtao then explained.

"What's the name of your wife and brother?" Lin Feng asked again.

"Li Jin. Zhao Bingtao said without hesitation.

The name "Li Jin" is a bit interesting.

Lin Feng followed out of the interrogation room and walked towards the place where Wu Liang worked.

Wu Liang sat in front of the computer and looked at a female policeman who specialized in managing household registration next to him, playing the keyboard quickly.

"Did you find it?" After walking in, Lin Feng immediately asked.

"Not yet, although I don't know what her brother's name is, but as long as I find her household registration book, it must have been recorded. Wu Liang followed.

"Her brother's name is Li Jin. Lin Feng reminded.

"Good. The policewoman nodded and quickly checked.

A few minutes later, the female policeman suddenly said happily: "I found it, Li Hong does have a younger brother, his name is Li Jin, who lives in the urban area of Yanjing City, not far from us, and now he seems to be a foreign trade businessman with a net worth of more than 10 million, but according to the information, this Li Jin was not born to Li Hong's parents, but was adopted by them since he was a child. ”

"Since it's an adopted child, their relationship should be good, but why doesn't he ever go home?" Lin Feng felt a little strange, this Li Jin, didn't he repay his parents for their nurturing kindness?

"It's useless to think about it now, let's catch that Li Jin back first. Wu Liang said suddenly.

"There is no evidence, it is useless to arrest him, there is no evidence at the scene. Lin Feng said helplessly, he was not sure if it was Li Jin, if the Dragon Carving Order had a reaction, he would quickly know if he was a murderer, and he was afraid that the Dragon Carving Order would not reflect.

Besides, Li Jin is so rich now, what is his motive for killing people? Why did he kill his adoptive father and adoptive mother?

The property at the scene was not taken, and there was no trace of the property being turned over in the place where the property was stored, which means that the murderer did not kill for the property.

"Then what do you say?" Wu Liang said with a headache, he hadn't slept well for almost a week for this case.

"You say, what did the murderer kill for, and what was his motive?" Lin Feng suddenly asked Wu Liang and the female policeman.

"Brother Feng, I don't know, but it's definitely not for money, because there is a lot of money in the house on the site, and it's all intact. Wu Liang smiled awkwardly, Brother Feng, didn't he ask in vain?

"Could it be for love?" The female policeman next to her usually watches a lot of Korean dramas, and she likes to watch those romantic dramas the most, she knows some murderers, and she can do anything for love.

The words of the female policeman completely woke up Lin Feng.

"Yes, it's for love. ”

After Lin Feng finished speaking, he rushed out and immediately ran into Zhao Bingtao's interrogation room, with Wu Liang following him closely.

"Zhao Bingtao, before you married Li Hong, did Li Jin never go back to Li Hong's home? When you didn't marry Li Hong, how was the relationship between their family?" Lin Feng looked at Zhao Bingtao and suddenly asked.

Lin Feng's words made Wu Liang dizzy, and he didn't know what was going on with Brother Feng.

Zhao Bingtao was silent, his thoughts seemed to return to more than ten years ago, he and Li Hong were not married fifteen years ago, at that time, his sons were so old.

Things have to go back to more than 20 years ago, because the time is too long, Zhao Bingtao doesn't remember very clearly, but he still remembers important things very clearly.

"Before I married Li Hong, their family relationship was really good, that Li Jin is also a filial son, often give money to my father-in-law and mother-in-law, my father-in-law and mother-in-law also like him, and even almost want to inherit a property under his name to him, but since I married Li Hong, Li Jin's attitude towards my father-in-law's family has changed, first occasionally go home, and finally don't go home at all, even if his parents are sick, he doesn't go home, he becomes a complete stranger. Zhao Bingtao explained.

"That Li Jin, like Li Hong, you are married, he will naturally not go home again, because that situation makes him very embarrassed, and your father-in-law and mother-in-law also know that Li Jin likes Li Hong, but because Li Jin is an adopted son, so your parents naturally strongly oppose him and Li Hong being together, and then you get married, then Li Jin holds a grudge until you have a child, and all his resentment erupts, yes, it must be so, this is the motive for killing!" Lin Feng was so surprised that he couldn't speak, he didn't expect that Li Jin to do such a thing.

Then Wu Liang also suddenly realized, and suddenly said, "Brother Feng, why didn't I expect that?"

"Go and get Li Jin back, the truth will naturally be revealed. Lin Feng said.

According to the scene, the deceased almost did not resist, since there was no resistance, it was naturally an acquaintance who committed the crime unexpectedly, they did not have time to resist, or they would not have thought that the murderer would attack him.

"Brother Feng, do you want to go and have a look. Wu Liang suddenly looked at Lin Feng and asked.

"Okay, let's catch it!"

Lin Feng followed, went out with Wu Liang, took a few policemen, and after getting into the police car, he drove to Li Jin's foreign trade company.

If it weren't for Lin Feng, Wu Liang wouldn't have thought of Li Jin so quickly, he didn't know that Li Hong actually had a younger brother, although this younger brother was not biological, but he was also a key figure in the case.

Li Jin's foreign trade company is located in a prosperous office building in Yanjing City, and the location is relatively easy to find.

Police cars roared by, and Wu Liang and Lin Feng quickly rushed to the front of the company.