As the saying goes, people reach forty-one hurdles.

Ma Kaiye is still several years away from his 40th birthday, but he feels that he has encountered a big hurdle in his life today.

This hurdle is called Mo Xiaochuan.

Ma Kaiye didn't know what Team Hao liked about this kid, and why he let himself suffer from this wretchedness.

Since the arsonist who was cut a thousand knives came out, the entire police force has been busy day and night for three days, and it is the time when he is anxious, but he still has to waste time with such a little fart child who has not grown all the hair, it is simply outrageous!

Ma Kaiye felt sorry for the police uniform on his body, sorry for the trust of the party and the people in him, and sorry......

Mo Xiaochuan sat in the car and seemed to feel the deep resentment of the horse captain beside him, so he didn't say a word along the way.

"I didn't get angry when I was squeezed like that just now, so it seems that this guy seems to be impatient, but in fact he is a very tolerable character......"

Mo Xiaochuan secretly slandered in his heart, and by the way, he wondered whether to repair the relationship with the team leader.

If you encounter something like Second Brother Hei next time, you don't have to trouble Team Hao.

And what's the best topic to talk to about with a criminal investigation team leader?

About the case, of course.

"The arson case, the basic situation Hao team has told me, the deceased doesn't seem to be very old, nineteen years old, or twenty years old?"

Ma Kaiye glanced at Mo Xiaochuan with his spare eyes, he didn't really want to answer, but since the other party took the initiative to show favor, as a team leader of the dignified city criminal investigation team, it didn't seem interesting to compete with a little kid too much, so he snorted lightly with his nose to answer.

Mo Xiaochuan carefully recalled the previous conversation with Hao De, and continued: "There was no monitoring at the scene, no ignition was found, and there was no combustible material on the deceased, so the cause of the fire is still unknown, right?"

This time, Ma Kaiye was a little surprised, not that Mo Xiaochuan could say these proper nouns to impress, but he was a little surprised that Team Hao actually told this little guy so much important information, could it be that Team Hao really wanted to rely on a college student to solve the case?

Ma Kaiye felt that this matter was very unreliable, but he subconsciously aggravated his nasal voice a lot.

"Hmm. ”

Seeing that Ma Kaiye's attitude had changed, Mo Xiaochuan knew that his strategy was right, so he completely opened the conversation.

"Since the incident, three days and three nights have passed, but the team has no clue at all, the modus operandi, the murderer's technique, and the relevant evidence, everything is unknown, which shows that this case is definitely not as simple as we imagined. ”

Ma Kaiye frowned: "What exactly do you want to say?"

Mo Xiaochuan shook his head and said in a deep voice: "Generally speaking, there are only two types of homicides, one is purposeful and premeditated, and the other is sudden or random, what type does Team Leader Ma think?"

Ma Kaiye suddenly felt a little funny, a little kid who hadn't even gone to college yet, actually talked to himself about criminal investigation here?

So he really laughed, albeit with a sneer.

"Premeditated, of course. ”

Mo Xiaochuan was noncommittal about this, and just asked, "What is the reason?"

As an old criminal policeman, Ma Kaiye doesn't need to think about this kind of question at all, just open his mouth: "If it is an emergency, or a random killing, the probability of using fire is very low, and the murderer usually takes materials nearby, such as knives, bricks, wooden sticks, etc." And the scene of the crime is not without cameras, but the murderer accurately avoided the surveillance video, all of which shows that the murderer stepped on it a little in advance and was premeditated. ”

Mo Xiaochuan nodded, and asked again: "Since it is a premeditated murder, then the key to solving the case is the victim's social relationship, in other words, the murderer's motive for committing the crime, I believe that in these three days, you must have carefully investigated the victim's surroundings, so why haven't you found any clues until today?"

This question doesn't need to be asked by Mo Xiaochuan at all, Ma Kaiye, no, it should be said that the entire criminal investigation team wants to know the answer.

From a certain point of view, Mo Xiaochuan asked the point.

Let's put it this way, if you want to kill someone in a planned way, no matter what your means are, at the very least, this person must have an enmity with you, right?

Then after the crime, the police only need to investigate who has a grudge against the deceased, and then investigate one by one, and it will be easy to find you!

Motivation is often the key to solving a case.

But on the contrary, for this arson case that caused a sensation in the entire mountain city, the police dispatched a large number of people, and it took three full days to find the reason why the deceased was killed!

The deceased is still only a college student, and his social relationship is relatively simple, so it stands to reason that it should not be so difficult to investigate, but the facts have proved that this case is really weird.

In the past three days, the police have successively visited the deceased's family, classmates, and teachers, asking everything that should be asked, and all the things that should be investigated, and even calling the out-of-town students who had an argument with the deceased two years ago because of a girl to drink tea, but they have not gained anything.

So now, whether it is Hao De or Ma Kaiye, until the entire criminal investigation team is in a hurry, so Hao De will find Shanhai Bar.

At this time, in the face of Mo Xiaochuan's extremely sharp question, Ma Kaiye couldn't help but glared at him angrily, and said in a deep voice: "This shows that the murderer is hiding deeply!"

Mo Xiaochuan smiled and shook his head: "This is a possibility, but I don't know if Team Leader Ma has thought of another possibility?"

"What is possible?"

"What if this arson case is a combination of the two types I mentioned earlier?"

Purposeful, premeditated crimes, coupled with random target selection.

This is the third type.

Serial homicide.

According to the FBI's definition of a serial murderer: a mass killer who murders at least three people and has a "cooling-off period" during the crime, and who commits a massacre in the same place in a short period of time.

This is the most difficult of all criminal investigation cases to solve.

Because of the motives of the murderer......

Untraceable!

In other words, the relationship between the murderer and the victim is not necessarily direct or indirect hatred, the two parties may not know each other at all, and the reasons for the murderer's murder may be strange.

For example, what kind of childhood shadow, what kind of mental illness, or simply psychopathic and so on......

So as soon as Mo Xiaochuan's words came out, Ma Kaiye's hands holding the steering wheel tightened suddenly, he was not stupid, and the entire criminal investigation team was not stupid, of course they thought about this possibility, but they didn't want this possibility to really happen.

After all, there was only one dead person who had appeared.

So it's too early to tell.

"Don't think that you can become a policeman after reading a few detective novels or watching some criminal investigation dramas, I don't care what Team Hao asked you to do, when you get to the police force, don't make a mess!"

Mo Xiaochuan grinned, didn't say more, and honestly remained silent.

Soon, the van stopped steadily outside the city police station, but before Ma Kaiye could bring Mo Xiaochuan into the door, he saw chickens and dogs jumping inside, and many police detectives were desperately rushing outside.

Ma Kaiye's heart trembled, grabbed a person, and asked, "Xiao Huang, what's wrong?"

The man was full of panic, and when he saw that it was Ma Kaiye, he hurriedly said: "Team leader, it's not good, the second victim has appeared!"

For a time, Ma Kaiye's whole person was like falling into an ice cellar.

Mo Xiaochuan on the other side sighed secretly.