Xia Zhihuan's eyes fell on paper A4, which had a very simple record: the corpse transport case on a tricycle.
"The tricycle corpse case has been investigated several times before, but there are no clues. The only location we can find is the deceased's last sighting, which is a fishing spot in the suburbs."
"A fisherman saw him and greeted him. After that, he disappeared. When he was found, he was in that pile of luggage," said Yu Muyang.
Xia Zhihuan frowned slightly.
"The murderer found a rickshaw at the train station and asked the rickshaw driver to help him deliver his luggage to a residence. In order to reassure the driver, the murderer gave him money in advance."
"So the driver went to the house according to the address given by the murderer. When he arrived, he found only the woman inside. She thought it was luggage sent back by her husband, so she accepted it."
"The driver had good intentions and wanted to help the hostess move her belongings into the room. However, he accidentally fell as he entered the room, and the luggage fell to the ground, leaving a pool of blood on the floor."
"The two men realized something was wrong and immediately reported it to the police. When the police came to check, they found a body that was completely disfigured in the luggage."
Yu Muyang sighed.
"When I saw this case, I wondered if I could solve it. Who was so cruel?"
"The body was taken away from the train station. Was it brought here by train, or did the person specifically go to the train station to dump the body?"
"The driver was so frightened that he fell ill for several days. I heard he simply threw the tricycle away and didn't even dare to sell it. His family also suffered a huge loss."
"He didn't describe the man's appearance clearly at the time. He only remembered a pair of eyes and couldn't describe anything else. That's why the case remains unsolved to this day."
"Didn't anyone ask my mother for help drawing a portrait three years ago?" Xia Zhihuan asked.
"I thought that Teacher Song is so busy and travels all over the country, and it's impossible for her to handle all the cases. Plus, this case is not within our jurisdiction, so I didn't come to see Teacher Song."
"It's not in our jurisdiction. Where did you see this case?" Xia Zhihuan asked.
"I'm not someone who likes to travel around, but I stumbled upon something and was quite interested, so I did some in-depth research."
"But my dad won't let me touch this case, saying there are no clues and the identity of the deceased is rather unique."
"He's an orphan and doesn't have many friends. Although his job is okay, the people he interacts with on a daily basis, that is, his coworkers, say he doesn't have a close relationship with anyone."
"But he's a responsible person and doesn't have any conflicts with his coworkers. He simply doesn't like socializing, so it's not a big deal."
"So no one could tell who had a grudge against him and was capable of such a cruel act."
Yu Muyang looked up at Xia Zhihuan.
"Do you have any ideas?"
"You think I'm a detective. There are only simple case records on this piece of paper, nothing else. I can get an idea just by looking at it. Then there is no case that I can't solve." Xia Zhihuan said.
Yu Muyang said happily, "In my heart you are the detective."
"Stay away from me." Xia Zhihuan pushed Yu Muyang away with disgust.
"If my mother took over this case, the first thing she would do is find the previous rickshaw driver and ask him what his employer looked like. That person is very likely the murderer."
"The rickshaw driver was terrified. Now, let alone asking about the situation, just mentioning what happened back then would cause him to convulse."
Yu Muyang scratched his head.
"What's the matter? Did you go to look for him?" Xia Zhihuan asked.
Yu Muyang nodded.
"I hadn't said anything yet, and he almost fainted, causing my dad to scold me for a long time." Yu Muyang said in a low voice.
Xia Zhihuan looked solemn.
"Some people will suffer severe psychological trauma under strong stimulation, and this kind of trauma is difficult to heal, so he has no way to face the incident at all."
"But if he doesn't face it, he will never be able to get out of this shadow for the rest of his life."
Xia Zhihuan sighed.
"It's really contradictory, but you know what to do?"
"Let's meet with his family and try to find a way to talk it over and see if he's willing to break through his defenses."
"As long as he's willing, with you and Teacher Song here, we can definitely draw a portrait of the murderer. Even if three years have passed, we can still find clues."
"It's much easier to initiate a joint investigation now than before," said Yu Muyang.
Xia Zhihuan nodded.
"That's an idea. Wait until my mother comes back and ask her opinion."
When the two talked about the case, Xia Zhihuan was more inclined to believe that the perpetrator was an acquaintance.
"If the crime was committed by someone acquaintance, we should have been able to find some clues when investigating the victim's social relationships."
"It's also possible that the crime was committed randomly," Xia Zhihuan analyzed.
Yu Muyang looked bitter.
"If it was a random crime, there would be no way to investigate. We don't know where this person came from, where he went after killing someone, and whether he would kill again in the future. It's hard to say."
The two people gathered together to continue the discussion.
"If it was a random killing, then why did the murderer choose the victim?"
Yu Muyang frowned and thought.
When the two were talking excitedly, Song Qingyun came back.
"Hello, Teacher Song." Yu Muyang immediately stood up and saluted Song Qingyun.
Song Qingyun smiled and waved his hand, "Muyang, you don't have to be so polite at home. Are you here to play with Zhihuan?"
"Teacher Song, I have a case I would like to ask you about." Yu Muyang said.
When Yu Muyang was in college, there was a subject taught by Song Qingyun, so he was instinctively nervous in front of Song Qingyun.
"What case? Let me see."
After washing his hands, Song Qingyun sat on the sofa with the two of them.
Yu Muyang handed the A4 paper to Song Qingyun.
"This case has just been handed to me."
"Really?" Yu Muyang's eyes sparkled.
"Teacher Song, can you temporarily transfer me to your team? I'm very interested in this case!"
"Why are you interested in this case?" Song Qingyun asked with a smile.
Yu Muyang scratched his head a little embarrassedly. Now when he answered Song Qingyun's question, he still had a sense of déjà vu in the classroom.
"Teacher Song, I think this murderer is very clever. He chose to use a tricycle to transport the body. This is something most people wouldn't think of."
"He was both clever and bold. He didn't leave any clues on the body. He also picked the rickshaw driver randomly and wrote the address randomly."
"This is equivalent to leaving our police officers outside the loop, making it impossible for us to understand his true psychology and thus find any clues about him."
"I felt like it was a high-IQ crime, so I was very interested."
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