Of course, Lü Qingqing didn't actually go to Chengdu in the end, because Ouyang Wen, leveraging his connections, found a local police officer to help.
During the investigation, that police officer discovered that he wasn't the only one chasing this person.
If Tong Meng knew about this, she would likely be so angry she'd faint. She had arrived in Chengdu much earlier, yet her progress was the same as Lü Qingqing's, who remained in Chongqing.
Here, she hadn't even solved one case, and Lü Qingqing was about to tackle another.
Huang Jin was also frustrated. A person named Li Han contacted him, saying Yue Bo had some matters to attend to and that insulin procurement could be arranged with him from now on.
However, Huang Jin knew that Yue Bo's insulin source was irregular. He didn't believe Yue Bo would dare entrust such an important matter to someone else. Moreover, even if he were to change contacts, Yue Bo should have notified him beforehand.
Therefore, he was cautious and did not admit to purchasing insulin at that moment.
He wanted to contact Yue Bo first to confirm Li Han's identity, but he couldn't reach him at his workplace after calling for two consecutive days.
This was incredibly agonizing.
...
Just as things in Chengdu were making some progress, a piece of good news and a piece of bad news arrived simultaneously.
First, the bad news: the police, under various pretexts, secretly collected the handwriting of Cheng Qian and his close friends and family. However, after comparison, no suspicious findings were discovered.
Next, the good news: Wen Fei mentioned that a little girl, their neighbor, had once seen the person who delivered the letter.
This was crucial information. Lü Qingqing and Ouyang Wen, without a second thought, rushed to Wen Fei's house.
The little girl was only 7 years old, at an age of innocent curiosity and budding awareness. She couldn't accurately describe the delivery person's facial features or physical characteristics. So, Ouyang Wen showed her several photos of individuals related to Yue Bo for identification.
As a result, the little girl did indeed recognize the delivery person from the array of photos.
However, this outcome surprised everyone. She pointed not to Cheng Qian, but to Ren Canglong.
Ren Canglong, the warehouse keeper, was the first to step forward and accuse Yue Bo of theft.
It was then that he truly entered the sight of Lü Qingqing and the others.
Lü Qingqing analyzed that this person was likely colluding with Yue Bo to resell insulin. For some unknown reason, they had fallen out. Yue Bo was either on the run or had already been murdered and silenced.
To gain a more accurate understanding of Ren Canglong's information without alerting him, Ouyang Wen began to discreetly gather evidence.
During this same period, Ouyang Wen also received feedback from his colleague in Chengdu.
The colleague informed him that the person who made the call had been identified as Huang Jin, who specialized in handling certain underground transactions in the local black market, and his trading partner was Yue Bo.
However, the Chengdu colleague also mentioned a specific detail: the person who initially introduced them was someone named Cheng Qian.
In simple terms, Yue Bo was just a runner; the true mastermind was Cheng Qian.
All the information aligned. Lü Qingqing saw a glimmer of hope for solving the case in Ouyang Wen's eyes.
Subsequently, Luo Wenwu also brought back some news. While investigating Ren Canglong's relatives and friends, they discovered a person named Ren Cangying. This individual made a living by writing letters for others and was skilled in various handwriting manipulations. The forged letter, written under Yue Bo's name to Wen Fei, had indeed come from him.
Soon, Ren Canglong was brought to the police station for questioning. He claimed that Yue Bo had indeed gone to Chengdu, but due to his hasty departure, he had no time to inform his family, so he asked Ren Canglong to deliver the letter.
However, he was quickly contradicted by his brother, Ren Cangying. Ren Cangying readily admitted to writing the letter, stating that he did so at Ren Canglong's behest.
Faced with Ren Cangying's accusation, Ren Canglong no longer denied it.
"I was also entrusted by someone to carry out their wishes," Ren Canglong said. In fact, all the arrangements were made by the warehouse supervisor, Cheng Qian. Cheng Qian had issued an order for Yue Bo to pick up the goods. Ren Canglong had noticed irregularities in the previous few times and confronted Cheng Qian.
But Cheng Qian told him that the black market profit from one box of insulin was equivalent to his monthly salary. If he turned a blind eye, he would receive one-third of the profits.
"Let me clarify, I wasn't doing it for the money. I just didn't want them to be sentenced for theft." Even at this point, Ren Canglong was trying to create a favorable persona for himself, which genuinely amused Lü Qingqing.
"Criminal motive is merely an inciting factor; the outcome of the crime is the basis for judging the punishment you deserve," Guan Jinsong said sternly. "Therefore, don't think you can escape punishment. What you need to consider now is active cooperation to seek leniency."
"Yes, yes, yes," Ren Canglong agreed meekly, nodding repeatedly. He explained that because the asset team was coming to inspect the warehouse, Cheng Qian feared the theft would be exposed, so he wanted to send Yue Bo to Chengdu. He planned to use Yue Bo's departure to create a false impression of "fleeing in fear of punishment," thereby shifting all the blame onto Yue Bo.
"But whether Yue Bo is dead or not, I don't know. All this was orchestrated by Cheng Qian." After confessing about the insulin, Ren Canglong then spoke about Wen Feixue.
As Yue Bo's wife, Wen Feixue naturally knew about their theft and resale of insulin. Cheng Qian, fearing that Wen Feixue might leak the secret of the insulin resale, had attempted to murder her on the evening of March 6th.
"Didn't you participate?" Lü Qingqing asked, her face turning ashen. Ren Canglong was still trying to absolve himself.
"I..." Ren Canglong hesitated for a long time, then nodded. "I confess!"
Ren Canglong admitted that he had gone to find Wen Feixue, told her about Yue Bo's escape, and informed her that Yue Bo was waiting for her by the Huangsha Stream.
Wen Feixue was very worried and, without thinking, followed Ren Canglong to the Huangsha Stream. It was there that Ren Canglong saw a barrel of lamp oil that Cheng Qian had prepared in advance.
He knew Wen Feixue was doomed.
Before taking action, Cheng Qian had also assaulted Wen Feixue. Wen Feixue, likely realizing Cheng Qian intended to kill her, pleaded desperately for her life.
However, Cheng Qian ignored her, knocked her unconscious with brute force, and tied her hands with wire.
"I heard Wen Feixue begging him. I felt unbearable and wanted to step forward to help her. But Cheng Qian threatened me, saying that if I showed any womanly kindness, I would be utterly defeated and end up in prison." Ren Canglong said that Cheng Qian told him to leave, and he ultimately hardened his heart and walked away.
However, from the hillside, he heard Wen Feixue's scream and saw flames coloring the night.
"I am guilty. I deceived Wen Feixue. If I hadn't lured her out, she wouldn't have died. Although I didn't personally commit the act, I am still an accomplice," Ren Canglong said, becoming increasingly agitated, even sobbing.
Upon hearing this, Lü Qingqing could no longer contain her anger. If they hadn't been in the interrogation room, she would have wanted to punch Ren Canglong to the ground.
This scumbag!
"Continue!" Ouyang Wen slammed the table. He couldn't stand Ren Canglong's crocodile tears.
"Later, the asset team arrived. Cheng Qian set fire to the drawers. Afterwards, we heard the police wanted Wen Fei to identify a body. Cheng Qian, fearing Wen Feixue's identity would be exposed, instructed me to write a letter impersonating Yue Bo, falsely claiming he had gone away. But I was worried the police would track me down, so I had Ren Cangying make a copy."
Hmph!
Lü Qingqing glared at Ren Canglong heavily. "The heavens have eyes, and their net is vast but misses nothing. You should have had Ren Cangying copy that saying!"