After Baiyan Zhenyu and others visited the injured postdoc Ali, the Mumu police department shouted aside, took out a paper product similar to the shape of number 8 and said, "brother Maori, the prisoner left this thing at the scene. It seems that the previous inference is correct. The prisoner should be the same person."

"Well, but what does the prisoner mean by leaving these things?"

Maori Kogoro's eyes swept back and forth on these items, trying to analyze the clues that the prisoner wanted to leave.

Baiyan Zhenyu carefully observed the paper product. Like seeing the paper Western dagger before, he also felt an inexplicable sense of familiarity. He quickly asked for three paper products from the Mumu police department and put them on the empty hospital bed from left to right.

"Eh? This pattern..."

Soon after, Baiyan Zhenyu seemed to find something. He immediately ran to the canteen outside the hospital to buy a pair of playing cards and compare them with the above patterns.

For Bai Yan Zhenyu's strange behavior, Maori xiaowulang was very confused and asked in surprise, "Zhenyu, have you found a clue?"

"Well, I think I've solved the secret."

As like as two peas of K, Q and J, three cards were put out by Shii Masawa, smiling at the top of the card. "Do you see what the prisoners left behind is exactly the same thing as the ones in the playing cards?"

When they heard the speech, they found that the characters in the three playing cards were holding a Western dagger, a white flower and a strange weapon similar to the shape of number 8, as Bai Yan Zhenyu said.

"It's as like as two peas."

Xiaolan looked at the props left by the prisoner in surprise and asked curiously, "but why should the prisoner use the weapons in the playing cards and choose the color of spades?"

Baiyan Zhenyu picked out all the spade playing cards and guessed: "the use of playing cards may represent the order of crime. As for the color, spades, also known as sunflower fans, represent spears, symbolize soldiers and death."

"I see, so do the prisoners commit crimes in the order of playing cards?"

At dusk, the police department showed a suddenly enlightened look in its eyes, and then saw the remaining ten spade playing cards. His face suddenly changed and said nervously, "there are thirteen spade playing cards in total, that is to say, the prisoner will continue to commit ten criminal activities?"

"Yes, at present, this possibility is very high, but not necessarily only ten times. There are two special ghost cards, big and small kings, which may also represent the number of crimes."

Baiyan Zhenyu nodded solemnly and continued, "and I also found a clue, which may be the key to solving the case."

"Oh, brother Zhenyu, talk quickly." Mu Mu asked the police department excitedly.

"The prisoner probably chose the target according to his name."

After Bai yanzhenyu finished speaking, he found that Mumu police department and others didn't seem to understand, so he explained in more detail.

"If sorted by numbers, spade K is spade 13, and the first person attacked is Mu Mu police department, which happens to have the number of 13 in his name;

The second attacker was my aunt. The word "imperial concubine" in English refers to queen, that is, the spade Q ranked as 12;

The third person attacked is Dr. Ali. Dr. Ali's full name is Dr. Ali. The word [Shi] can obviously be divided into ten and one, that is, the spade J ranked as 11. "

After hearing Bai Yan Zhenyu's meaning, Maori xiaowulang touched his chin and speculated with intuition: "so the murderer is using playing cards to hint and is going to kill people whose names contain 13 to 1 numbers one by one?"

"Yes," Bai yanzhenyu nodded and concluded, "so the next target of the prisoner's attack must be the person whose name is related to ten!"

Conan, who also analyzed a lot of information, came over and said, "Mumu police department, I also found a clue that the people who were attacked were related to Uncle Maori."

"Ah?"

When they heard the speech, they were stunned and immediately found that the injured people were indeed people who had a good relationship with Maori Kogoro.

"Can you say that the prisoner is my enemy? Damn, who is it?"

Maori xiaowulang frowned and thought about the people who had enemies with him. Unfortunately, he had no clue and could only complain helplessly.

At dusk, the police department's eyes lit up, like thinking of something, and quickly said, "brother Maori, if the prisoner is someone who has a grudge against you, I have a suspect here, that is, the Murakami father-in-law who was released from prison a few days ago."

"What? The guy from Murakami is out!"

Hearing the name in the mouth of the Mumu police department, Mao xiaowulang's look suddenly became dignified. After pondering for a moment, he said bitterly, "if it's that guy, it's really possible, asshole. Is he going to torture me slowly in this way?"

Baiyan Zhenyu was confused and asked: "Mumu police department, who is uncle Murakami?"

"Mr. Murakami is a bachelor who specializes in gambling on cards. His nickname is [ghost card]. He was arrested by his Maori brother who was a policeman at that time because he killed a man ten years ago. He was not released until a week ago."

Mumu police department pulled out a picture from his mobile phone, pointed to a dealer who was licensing gamblers and said, "you see, the man in this picture is Murakami ten years ago."

"I also heard about that case. I remember when the man was taken to the police station..."

"White bird, don't talk about the next thing!"

Officer white bird also recalled something and looked inexplicably at Mao lixiaowulang. Before he finished, he was interrupted by the Mu police department.

Although Bai yanzhenyu and others were surprised by the overreaction of Mumu police department, they didn't say much. They checked the photos in the mobile phone of Mumu police department together.

"Wait, I've seen this man. A week ago, he came to the office to find his uncle, but his uncle was playing mahjong outside, so he left and said he would visit again later. As a result, he never appeared again."

Seeing the appearance of Murakami's father-in-law, Bai yanzhenyu found that he was the strange man he saw in Maori office a week.

This clue provided by Bai Yan Zhenyu exacerbated the suspicion of Murakami. Mu Mu's police department immediately ordered officer bainiao: "bainiao, take someone to investigate Murakami immediately."

"Yes, police department, I'll act now."

Officer white bird took the order and led the police of the first search class to investigate and find the whereabouts of Murakami.