In the armed robbery and homicide case 20 years ago, the victim died and went crazy.

Twenty years later, the murderer was killed in an underground garage just after he was released from prison. Two days later, the judge was killed in the farmhouse where he lived.

The murderer was venting his dissatisfaction with the verdict 20 years ago, and the murderer must have something directly related to that case.

After our current investigation, the client, An An, has gone mad and has lived in a psychiatric hospital for twenty years, with no ability to commit crimes. There are currently two other people suspected of committing crimes, the first is Liu Xin, the attending physician who feels sorry for An An's background, and the second is Wu Junhao, the business owner who has a crush on An An and has silently paid for his medical expenses for 20 years.

Crucially, they all have access to tranquilizers.

At the moment, we have no clues, and if the murderer stops here, the case is likely to become an unsolved case.

Cases taken over by the Serious Crime Unit become unsolved, which no one can allow.

This is a major challenge for the Serious Crime Unit, and even more so for the entire police force.

In the case analysis room of the criminal police team of the Qingfeng City Public Security Bureau, all of us gathered together to reorganize all the clues we currently have.

"The murderer will definitely commit the crime again!" I settled down and said seriously.

The justice that the murderer needs to carry out must not only be the prisoner Wang Dahai and the judge Liu Changchun.

Since there is no way to start the investigation with tranquilizers, you can only find his next target before the murderer.

So if I'm the murderer, who will my next target be?

"Wu Junhao said that in addition to the judge's deliberate bias in Wang Dahai's case, there was another key point, that is, the witness retracted his confession!" Li Meng carefully recalled what Wu Junhao said that day.

According to common sense, homicide cases are full of ironclad evidence, and even if the judge deliberately favors and the witness retracts the confession, it will not affect the outcome of the trial. But having said that, no matter what happened in the trial of the case back then, since Wu Junhao thinks that the judge is biased and the witness is against the water, as a murderer who is also dissatisfied with the trial result, he will definitely think so.

"If I am the murderer, the next target must be the witness who retracts the confession and finds him before the murderer! Protect up! "Thinking of this, I deployed the direction of the police's next case investigation.

The soldiers are divided into two ways, one way to continue to investigate, and the other to protect witnesses, both at the same time.

But where are the witnesses? In the criminal case 20 years ago, a lot of information was not comprehensive, and there was only one name on the file, not even an ID number! It's like looking for a needle in a haystack! Li Meng said a very real problem.

"Yes, even if you have an age and place of origin, you really can't start now." Lin Zifan also felt that finding witnesses was more difficult than looking for a needle in a haystack.

Once again, there was silence in the case analysis room.

After a moment, Su Yumei slapped the table suddenly, stood up and said sharply: "Don't worry, leave this matter to me!" It's enough to have a name! I immediately organized the police force and used the household registration system of the Public Security Bureau to search nationwide! Damn, we can't find it, and neither can the murderer! ”

Li Meng looked at Su Yumei and said weakly: "Sister Yumei, although there is a sentence that is a little deflated, I still have to say it." If the witness really retracted his confession and gave false testimony, then it is very likely that he will change his name in order to prevent retaliation......"

After listening to this, Su Yumei sat back in her chair. She bit her lip lightly, lost in thought.

"Xiaomeng is right, this kind of thing is not impossible. But what I want to say is that the murderer did not have an internal household registration system in the Public Security Bureau. Moreover, 20 years have passed, and the witnesses of that year have become middle-aged people in their fifties and sixties, and their appearances will also change. "I followed Li Meng's analysis and expressed my opinion.

As I said before, only by analyzing it completely from the murderer's point of view can we know the murderer's thoughts and next steps.

No one spoke, and there was silence for a long time, when Xue Hang suddenly opened his mouth and said coldly: "Wang Dahai." ”

"Wang Dahai?" Hearing this name, we were all stunned for a moment, and we all turned our eyes to Xue Hang.

"The witness retracted his confession in order to help Wang Dahai mitigate his crime, so he must have received Wang Dahai's benefits. Therefore, Wang Dahai must know where the witness is, but Wang Dahai has served 20 years in prison, and it is not certain whether the witness's information is valid. Xue Hang said coldly.

"The information has not changed for twenty years, and this probability is too small." Lin Zifan thought about it and felt that this kind of thing was unlikely.

"No matter, a dead horse should be a live horse doctor! I mobilized all the police forces and ordered all the police officers to stop all rest and work overtime. From now on, the nationwide investigation of witness information. I'll deploy it now, and we'll contact you at any time if there's any situation! Su Yumei stood up, and hurriedly went out after speaking.

"These sisters really have character." Jiang Tingbai looked at her back and whispered.

"Team Qin, what should we do now? You can't wait for the news of the national investigation of the Soviet team. Lin Zifan asked me.

It's really not a good idea to wait.

The murderer can learn the information of the witness through Wang Dahai, and we should also find a person who witnessed the case 20 years ago.

"We seem to have overlooked a key person." I looked up and suddenly thought of a suitable person.

"Who?" Everyone asked me in unison.

Only Li Meng looked at me in a daze and slowly spoke: "Wu Junhao? ”

I looked at her and nodded.

After such a long period of cooperation, we have become more and more tacit.

Wu Junhao was the one who did his best to help An An fight the lawsuit, although he was not an eyewitness to the case, he knew the case very well, and he might know some information about the witnesses.

Time was pressing, and Li Meng and I immediately went to find Wu Junhao.

Wu Junhao's drug development laboratory has made a major breakthrough when they have developed an adjunctive drug for traumatic stress syndrome.

When we arrived at Wu Junhao's office, he had just returned from the lab.

"Two officers, let's meet again."

He walked into the office very happily and served us tea with a smile.

"We're here to ask you about the witnesses back then." I said seriously.

He sat across from us and suddenly let out a sneer at us: "The judge of the year, Liu Changchun, is dead." ”

"That's right, the judge is dead, and the murderer's next target must be witnesses." Seeing that he already knew about Liu Changchun's death, I didn't hide our true purpose from him.

To my surprise, he said to us, "Why should I tell you about the witnesses? ”