Since Lee Jin-joo and Park Hyun-he were talking in Korean before, Zhao Yu only heard the word "black pupil", he interrupted and asked.

"There is a misunderstanding here... when it came from Japan, it was called this name..." Park Heon-he explained to Cho Yu, "Maybe...well... maybe it's for rhyme, right?

"After all, it's called black eyes, black eyeballs, black eyeballs, etc., which sounds bad!"

"Oh?" Zhao Yu raised his eyebrows, becoming more and more puzzled, "What does it mean when it came from Japan? Is there something wrong with our understanding? Aren't you talking about a case?"

"Yes, yes..." Park Heon-he nodded, "This is a case, it's quite a sensation!

"Look..." He suddenly realized something, and pointed at Zhao Yu with wide eyes and said, "I forgot that Zhao is a big detective! Hahaha..."

"After the murderer killed someone, he dug out the eyes of the deceased and replaced it with a black stone," Li Zhenzhu said. "Detective Zhao shouldn't have heard of the famous Black Eye case in history, right?"

"In history? What does it mean?" Zhao Yu was confused, "I have never heard of this! I have seen all the world-famous unsolved cases? Gumantong or me... well..."

Although the Gumantong case was solved by Zhao Yu, it was not announced to the public for various reasons.

"This is not a unsolved case," Li Zhenzhu explained, "the case has been solved!"

"Oh? This is a bit interesting. Let's talk about it!" Zhao Yu immediately became interested.

"Well..." At this time, Park Hyun-he looked at her watch and said to Zhao Yu, "Sorry, Detective Zhao, the case is urgent, I have to deal with it! If it is too late, something might happen again!"

"Oh..." Zhao Yu naturally nodded in agreement.

"The documents are all here, don't worry," Park Heon-hee said. "I'll come here to get them tomorrow. If you have something you can't understand, just ask the police here!"

After saying that, Park Hyun-he sorted out her clothes and hurriedly left the office.

At this time, through the floor-to-ceiling window, you can see that the rain outside is getting heavier and heavier, and the slumbered water lines keep sliding on the glass, making people feel a little nervous.

"Detective Zhao, I came up with a good idea," Li Zhenzhu said to Zhao Yu with a little excitement, "Aren't you bored? Why don't I apply for it for you? Have you ever been addicted to solving cases in our South Korea?"

"Don't!" Zhao Yu waved his hand quickly, "I have solved a case and almost even lost my life. It's better to eat my barbecue honestly!"

"Haha, just kidding!" Li Zhenzhu smiled slightly, and then told Zhao Yu about the history of the Hei Tong case. "This case can be traced back to Yokohama, Japan in the 1970s.

"My memory is a little blurred. The first case should have happened in 1974...

"At that time, someone found a male corpse on the beach. The body did not rot, but it was very scary because people found that the eyes of the corpse were black!

"Later, through police inspection, it was found that it was not a real eye, but a stone carved into the shape of an eye...

"And the deceased's eyes have been poached by the murderer..."

"Oh..." Zhao Yu grinned and couldn't help asking, "What about the cause of death?"

"Diet from suffocation!" Li Zhenzhu replied, "But the deceased was not drowned or strangled."

"No way?" Zhao Yu wondered, "Hanging?"

"Well... the police found a synthetic drug containing succinylcholine in the body, and suspected... suspected..." Speaking of this, Li Zhenzhu suddenly stuttered.

"Succinylcholine?" Zhao Yu thought for a moment, "Why does it sound a little familiar?"

"That is a drug that paralyzes muscles and nerves," Li Zhenzhu introduced. "After using it, it will paralyze the human nerves and the muscles are uncontrolled.

"If used excessively, it will cause people to fall into a severe coma and eventually die because they cannot breathe...

“In medicine, this is a strictly controlled drug!”

"Oh my God!" Zhao Yu took a deep breath, "It's not that he lost consciousness directly. In other words, when the murderer changed his eyes, the deceased... did the deceased feel?"

"This is only the first," Li Zhenzhu continued, "In the next six months, similar cases have occurred in the same city one after another, with 5 victims!

"Although the case has reached a very serious level, the police still don't have many clues!

"These five people are engaged in different occupations, different ages and genders, and have no connection...

"Because the deceased was replaced with eyes made of black stones," Li Zhenzhu said intriguingly, "This serial murder case is also called the Black Eye Case!"

"Oh..." Zhao Yu nodded and asked again, "What about it later? Didn't you say that this case has been solved?"

"Yes!" Li Zhenzhu nodded, "Just after the fifth victim appeared, the police dug out the background of the five victims in detail, and finally found a crucial common point!

"It turns out that all five of them have participated in the local court's jurors and have appeared in an important court defense."

"Oh? Jurors?"

Although he has never had direct contact, Zhao Yu often hears this term from film and television dramas, and knows the responsibilities of foreign jurors, probably to listen to court defense and then give his own opinions.

Especially in countries like Japan, jurors often play a very important role. The judges will even end up jurying the defendant’s guilty through the voting of the jurors.

"At that time, the five jurors unanimously made the defendant's guilty decision in that defense, which eventually led to the defendant's death penalty!"

"Oh..." Zhao Yu instantly realized, "The murderer is probably the relative of this death row prisoner?"

"Yes!" Li Zhenzhu nodded, "The death row prisoner is a butcher shop vendor who was suspected of killing two children under 10 years old, so he was arrested and prosecuted by the police.

"After a court ruling, he was eventually executed.

"The murderer of the Hei Tong case is the son of the death row inmate!" Li Zhenzhu said, "Perhaps, he thinks his father was wronged, and it was the jurors, lawyers and judges who killed him!

"That's why we have to kill these people and seek justice for his father in this way!"

"Wait... Wait..." Suddenly, Zhao Yu heard something and asked hurriedly, "What does it mean to say 'maybe'? Did the murderer not undergo interrogation? Did he commit suicide or was he beaten to death because of resisting arrest?"

"Abducted, but not killed!" Li Zhenzhu said, "When the police arrested the murderer, they found that the murderer was not at home, so they quickly sent someone to protect the other jurors in the case, as well as the plaintiff's lawyer and judge!

"Coincidentally, when the police entered the judge's house, they happened to encounter the murderer committing the crime, and had already replaced one of the judge's eyes...

"When the murderer realized that his crime was exposed, he fled and the police chased him on the spot.
Chapter completed!