According to the footprints left at the scene, the police could determine where the suspect had entered and exited the sanatorium. However, this was internal police information, so outsiders couldn't know.
Therefore, since the patient named Liu Cheng could tell the exact location, it meant that he had probably seen the suspect that night.
Unfortunately, Liu Cheng was a mental patient. If he had found that the suspect had followed the female employee into the toilet, he could have saved the female employee's life by shouting loudly.
However, Liu Cheng was mentally abnormal and had a serious communication disorder. He was usually silent and seldom spoke. Otherwise, he wouldn't have been sent to a sanatorium by his family when he was very young.
However, no matter what, Liu Cheng was still an important witness of the case. The police immediately sent the best psychologist to communicate with him. In the end, they obtained a relatively complete confession and a portrait of the suspect!
However, even with this portrait, the suspect was still missing. Although the police never gave up on the investigation, they still couldn't find the real murderer.
Now, when Officer Wang found out that the case was in Memoirs of a Murderer, he immediately got the police information from that year and began to compare it.
First, the technician confirmed that it was a pair of common cloth shoes of size 42. The height of the murderer should be about 1.72 meters.
Nong Zhifa was 1.73 meters tall, so he was wearing size 42 shoes.
Then, Officer Wang compared the suspect's portrait with Nong Zhifa's. However, the result was a little surprising.
According to the expert's comparison, it was proved that Nong Zhifa was only 61% similar to the portrait, which was far below the standard.
However, such a ratio couldn't completely rule out Nong Zhifa's suspicion.
After all, the portrait was drawn according to the witness's account, so it was normal for there to be some deviation.
However, now that he had Nong Zhifa's Memoirs of a Murderer, the situation was obviously different.
Zhao Yu thought that as long as he took Nong Zhifa's photo and asked Liu Cheng, the answer would be clear.
It was a pity that although Liu Cheng was still alive, his condition had already deteriorated.
Now, he was living in the Sheng 'an Psychological Hospital in Chaohai City. Every day, in addition to eating, drinking and going to the toilet, he would go to the park of the sanatorium and stare at the flowers in the park for a whole day.
Sometimes, even on cloudy and rainy days, he would go out with an umbrella. His behavior was quite unconventional.
Officer Wang had sent someone to visit him with Nong Zhifa's photo, but Liu Cheng didn't say a word. It seemed that he had completely lost the ability to communicate.
According to the nurse in the hospital, it wasn't that Liu Cheng didn't know how to speak, but that he couldn't communicate normally with others and had fallen into a self-enclosed world.
Therefore, the police could only return empty-handed.
Without Liu Cheng's confession, there was no way to determine whether the real murderer of this case was Nong Zhifa himself.
So, Zhao Yu felt that he needed to work on Liu Cheng to see if he could provide any new clues for the case.
Therefore, he pretended to be a mental patient and stayed in the mental hospital, trying to get close to Liu Cheng as a patient and sound him out.
Speaking of which, this kind of mission was quite strange.
If it had been a criminal, Zhao Yu would have had the means to make him talk. But facing a mental patient, he did not know how to do it.
Ever since he had entered the mental hospital, Zhao Yu had been trying to get close to Liu Cheng. But, just like the information stated, Liu Cheng was like air to Zhao Yu, completely ignoring him.
Even when Zhao Yu took the initiative to talk to him, he didn't respond at all.
It stood to reason that most people would think of other ways to get close to Liu Cheng.
But, Zhao Yu was different. He was a person who would not give up until he achieved his goal. He saw Liu Cheng squatting in the garden every day and looking at the flowers.
He stayed in the garden every day and stared at the flowers like Liu Cheng did. Even on cloudy days and rainy days, as long as Liu Cheng looked at the flowers, he would also look at the flowers.
He wondered if, as long as he imitated Liu Cheng, he could find a common language and make Liu Cheng talk.
One day, two days, three days …
After a few days, Zhao Yu felt that he was a little crazy. However, Liu Cheng still treated Zhao Yu like air and ignored him.
In this way, Zhao Yu stayed in the mental hospital for nine days. Until today, he had still not found anything.
Miao Ying said on the phone, "If you feel that work is too tiring, I don't have a problem with you staying in the mental hospital.
But, if you want to investigate the case, I think you're wasting your time! " Miao Ying said calmly. "I know that you're trying so hard to deal with mental patients because you want to prove that Nong Zhifa is not the original author of the memoir of a murder, and that the murderer is someone else, right?"
"This …" Zhao Yu nodded. "I just think that Nong Zhifa is very similar to Kang Ziqing. Their personalities are different, and their paths are different. I think that, even if he is the murderer, there is a high possibility that he has accomplices in this case!
Miao Miao, although Nong Zhifa is dead, if there are accomplices in this case, then the nature of the case will be different! Don't tell me you don't understand?
Most of the corpses can't be found, and most of the cases can't be proven. If there really are accomplices, then we can clear the names of the deceased! "
"I understand, I understand!" Miao Ying said. "But … what can a mental patient prove? His testimony and confession are invalid in the eyes of the law. "
"Even if the patient finally spoke and told you that the person he saw was Nong Zhifa, wouldn't that be useless?"
"What if … it's not?" Zhao Yu was not convinced.
"If it's not," Miao Ying said, "would you believe it?"
"This …" Zhao Yu creased his eyebrows. Miao Ying's words made sense. Maybe he was really wasting his time. But, Zhao Yu was stubborn. He clenched his teeth and said, "Miao Miao, I think, maybe the testimony of a mental patient is more truthful than a normal person?
"Because, they won't lie, right?
"Besides … I don't need him to testify in court, I'm just asking about the situation! And … "Zhao Yu said," You don't know, but I don't think I've wasted the past nine days. When I was looking at the flowers with him today, he peeked at me a total of twelve times, a lot more than before!
I think I've already attracted his attention. As long as I persist for a few more days, he will definitely treat me as his friend! "
"I really have to give it to you!" Miao Ying was speechless. "Alright, I respect your choice. You're a great detective, after all.
"But, I have to remind you, investigating a case is one thing, but don't go crazy. Don't forget that you're not a mental patient. You used to be quite abnormal, so I'm afraid that you …"
"Alright, alright," Zhao Yu said. "Be careful with your words, missy. I've never thought about this before, so please don't mislead me …"
After that, the two of them chatted for a while more before hanging up.
At that time, the news on the TV had finished broadcasting. Zhao Yu was no longer in the mood to eat chicken dinner. He began to think about what Miao Ying had said. Was he really doing useless things?
Trying to get close to a mental patient? That was a bit whimsical!
Hehe …
Zhao Yu scratched his head and began to ponder. After today, would he have to stop this ridiculous behavior?
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