"What case tandem?" The captain waved his hand and said bluntly: "You can say it directly, He Yang, there is one thing to say and two to say, my old Xing has to say that your arrival has turned us back in the direction of our investigation, and it is indeed appropriate for you to come to help." ”

I hurriedly said a few polite words, modestly saying that I was inspired, but if the inspiration thing is not verified in a down-to-earth manner, it is actually a castle in the air, so if it is really me who found the direction of the investigation, it is also based on the fact that the criminal captain and others have visited it for more than half a month, and in the face of the detailed report, I just put forward an idea in another way.

The captain of the torture team laughed and patted me on the shoulder and said, "Okay, the two of us don't blow each other in business here, hurry up and talk about the case, what kind of case series did you just say?" ”

Since the murderer had to confirm three times whether she had killed someone, wouldn't it be a very risky act for her to choose to ambush in the staircase and knock people down with a stun baton behind her back?

We all know that the electric shock baton is not so easy to operate, if the voltage control is not right, or the position of the blow is not suitable, the other party may not fall immediately, on the contrary, he will also subconsciously shout or resist under the fright, since the murderer is a thin person, then once this happens, all the plans he has worked hard to calculate will be in vain, so she will never let this kind of thing happen. ”

The torture captain's eyes lit up, and his right hand clenched his fist and slammed it on the palm of his left hand: "So she must have been tested, and more than once!" ”

"Yes." I have to say that it is really a very pleasant thing to cooperate with an experienced and experienced criminal police like the criminal captain, many times you only need to say the first half of the sentence, or even just flirt with a few key words, he can quickly expand to match your thoughts.

"Baozi, immediately use the words "being attacked with electric shock batons" as the key words, and search the report records of the past three years."

"Understood!" Baozi waved two fingers in front of his forehead, and quickly avoided the corner to make a call.

I finally confirmed the final portrait of the murderer with the captain of the torture team: "Female, ordinary, average or thin, ordinary appearance without significant features, and even very harmless and amiable, because she has been here many times, has been in and out of the construction site many times but has never been remembered, she is not busy or unemployed, and she can read Ye Zhenzhen's Weibo on the Internet at any time when she has a lot of free time, and she can find it from the Weibo people who follow Ye Zhenzhen, but she may not necessarily pay attention to it."

She should have a fixed day off, and she shouldn't need to sit all day, leaving temporarily will not arouse the suspicion of others, she has a slight obsessive-compulsive tendency, a bit like to drill the horns, professionally...... Doctors, cooks, etc., can be ruled out, and the murderer has a very strong emotional element in this murder, which should be considered as a key consideration. ”

"Being good at cooking is a must." The captain of the criminal team added his opinion.

Lin Yi was flying with a pen on the side, quickly recording our conversation.

On the other side, Baozi rushed over: "I found out, there have been a total of five suspected electric shock stick injuries in the past three years." ”

The captain and I glanced at each other and urged, "Tell me more about it." ”

"Yes." Probably because more and more evidence was collected, Baozi's expression was a little excited: "One was July 19 three years ago, one was September 20 last year, then October 5, January 3 this year, February 12, according to the report, they were all attacked with electric shock batons at night, two of them fainted on the spot, and the other three fell to the ground, but when they got up and chased again, the injured person had already run away." ”

Lin Yi bit the cap of his pen and guessed: "After falling, you can still get up and chase after the previous ones." ”

Baozi nodded: "Yes, the first three cases, and the last two injured people fainted directly." ”

Lin Yi said: "It can be seen that the murderer is becoming more and more handy with how to use an electric shock baton. ”

"I've checked, and the victims in these five intentional wounding incidents were all just electrocuted, regardless of whether the injured person fainted immediately or not, the person who did it left directly, neither took away the property nor continued to hurt the injured, so these injured people were just routinely called the police, and these cases have basically been defined as hoaxes." Bun interface channel.

The captain of the torture said in a deep voice: "But the mischief has never been caught. ”

"Yes."

The captain looked at me thoughtfully and asked, "He Yang, what do you see?" ”

The interval became shorter and shorter, and after five trials, the killer finally mastered the voltage and the location of the attack that could knock people down with a single blow......

It's just that the question is still the same question, what kind of deep hatred and hatred will make the murderer premeditate for nearly three years?

Other than that......

"Check whether anything happened between Ye Zhenzhen and Huang Min between July 19 three years ago and September 20 last year."

As soon as I finished speaking, I saw Baozi and said, "Does marriage count?" ”

"Huh?" I was stunned for a moment.

Baozi pointed to the wedding photo of Huang Min and Ye Zhenzhen hanging on the wall: "The two of them registered their marriage during this time." ”

This makes sense, before September 20th, although the murderer had hatred for Ye Zhenzhen and Huang Min, and tried to murder, and made a detailed plan, but only did one experiment, and did not frequently use electric shock baton attacks, because she was still hesitating at the time, even if ordinary people were resentful in their hearts, they would generally not commit premeditated murder, which is different from murder with passion.

Then between July 19th three years ago and September 20th last year, the murderer's mood tended to be stable, and he may even have given up on this matter for a while, and then during this time period, Ye Zhenzhen and Huang Min got married, and the murderer was stimulated again and began to frequently test electric shock batons, and finally killed Ye Zhenzhen and Huang Min's family of three.

"Let's check it out first." I closed the document in my hand and handed it to Lin Yi: "According to the new suspect portrait, the murderer has no way to enter Ye Zhenzhen and Huang Min's home for on-the-spot investigation, but she should have seen the internal model in the sales office, or relatives or friends have bought a house in this community, in short, she must have touched the room type." ”

"Okay." The captain nodded: "I'll let you know when there's news." ”

The investigation is a tedious and meticulous work, but fortunately, a lot of preliminary work has been done before, and this time the suspect is eliminated again according to the new portrait.

Three days later, the captain called me again.