I'm not a genius detective

Chapter 135 Interrogation of Ma Chen
When the news reached the branch office, Ji Bowei, upon learning that there was indeed a fourth person and that he had been captured, immediately ordered other investigation teams and the technical squadron to set off.

The former verified Ma Chen's whereabouts on the day of the incident, while the latter went to Ma Chen's home to conduct a full search.

Ma Chen was quickly taken to the branch office and directly into the interrogation room, where he was already handcuffed.

Ji Bowen personally took charge of the interrogation and sat down in front of Ma Chen. He knew that Ma Chen had confessed to the crime of poisoning Du Juncai.

On the surface, cooperative murder may seem like a sharing of risk, with some planning, some providing the tools, and some carrying out the crime. Does this reduce the risk? Actually, no.

The more people involved, the easier it is to be exposed. In this case, there were four people, including Pan Xia, which is equivalent to increasing the risk fourfold. If a problem occurs in any link, it will directly lead to the annihilation of the entire group.

Behavior reflects psychology; every action leaves a trace. Ma Chen could be said to be outside the interpersonal relationships between the victim and the suspect, but he eventually came into the police's sights.

If they don't find out today, they will eventually find out in the future; there are only a few people who can't escape.

"Name."

"age."

"Profession."

……

After asking for basic information, Ji Bowen got to the point: "Did you kill Du Juncai?"

Ma Chen answered readily: "Yes."

Ji Bowei: "How was he killed?"

Ma Chen: "Use poison."

Ji Bowei: "What kind of poison?"

Ma Chen: "Cyanide."

Ji Bowei: "Let me explain the specific process."

Ma Chen: "That afternoon I entered the community from the northwest gate of Ping An Garden, pried open the lock of Du Juncai's house, and put cyanide into the water dispenser's water tank."

Simple and clear.

Ji Bowei: "Whose shoes were you wearing when you committed the crime?"

Ma Chen: "Of course they're my shoes."

Ji Bowei: "Where did the cyanide come from?"

Ma Chen: "Bought on the black market."

The brief initial questioning silenced Ji Bowei; it was clear that Ma Chen was trying to take all the blame upon himself.

Picking the lock to get in?

The technical squadron had already conducted a thorough inspection on the day of the incident. The lock on Du Juncai's door was intact, with no signs of forced entry. The suspect had definitely used the key to walk in without any trouble.

Wearing your own shoes?

The floor at the crime scene showed obvious signs of dust accumulation, and if a fourth person had entered, it's impossible that they wouldn't have left footprints—even if they were wearing shoe covers.

Cyanide bought on the black market?
Putting aside the difficulty, the police have already identified Ren Yi as a suspect.

“Ma Chen, we’re already here, let’s stop talking nonsense.” Ji Bowei looked at him. “You may not know, but Lü Zhanpeng, Lü Zhanpeng’s mother Pan Xia, and Ren Yi are all in the detention center right now. We’ve basically figured out the whole case. What’s the point of lying?”

Upon hearing this, Ma Chen's expression stiffened, and he immediately said, "I'm not lying. I killed Du Juncai. You can investigate."

Ji Bowei: "I know you killed Du Juncai, but there are other suspects involved in this case. It's pointless for you to take the blame on yourself. Let me ask you, do you really know Du Juncai? How do you know when Du Juncai will go back? How do you know that Du Juncai will definitely drink the water from the water dispenser? What if you accidentally killed him? There are more than just Du Juncai living in that house."

After a moment of silence, Ma Chen said, "I've investigated. If we're going to kill him, we should at least investigate everything thoroughly."

Seeing that the other party was not willing to budge, Ji Bowei skipped the topic and asked, "Why did you kill Du Juncai?"

Ma Chen said calmly, "If he hadn't stolen Ren Yi's scholarship, Aunt Wang wouldn't have died."

When I was little, I huddled in a corner, hungry and cold. It was Aunt Wang's steamed buns that kept me warm and fed. I will never forget that taste. Now that she's dead, I need to do something for her.

Ji Bowei: "But her death had nothing to do with Du Juncai. You yourself know that in your heart, which is why you said the words 'He's just unlucky.'"

"He's just unlucky, what does that mean?"

Ma Chen: "Literally speaking, Aunt Wang died suddenly from overwork, which was bad luck. Du Juncai was poisoned by me, which was also bad luck. Everyone has bad luck sometimes, so no one should complain."

Ji Bowei didn't quite understand Ma Chen's thought process: "Only Ren Yi and her father knew about the scholarship, so how did you find out?"

Ma Chen: "Ren Yi told me. I chatted with her for a bit on the day of Aunt Wang's funeral and that's how I found out about it."

Ji Bowei crossed his arms and said, "Ma Chen, lying will only increase your guilt. I hope you will consider yourself and your parents."

Mentioning his parents, Ma Chen suddenly became agitated: "Don't mention them to me! What's wrong with my parents? Why should I think about them? My mother ran away when I was very young, and my father is an alcoholic and gambler who doesn't care about me at all. Now you want me to think about them?"

You police officers, dressed in fine clothes, stand on the high ground of the law to punish and condemn, ostensibly for justice, but actually all for your own benefit!

"If there were no merit, no chance of promotion or wealth, would you still work so hard to investigate cases?"

Ji Bowei narrowed his eyes; these words revealed the other party's obsessive personality.

Han Ling was right when he reported that someone outside of interpersonal relationships could not possibly be involved in this murder case based solely on their existing motives; they likely have some character flaws.

An ordinary, normal person needs a strong motivation to trigger their emotions in order to commit murder.

If someone has personality flaws, it can be very dangerous; any opportunity or trigger could lead to adverse consequences.

Childhood experiences, including adolescence, are extremely important in shaping one's personality. Many of those deranged serial killers have dark and unbearable early memories that are deeply imprinted on their hearts.

Ma Chen's childhood was devoid of joy, filled only with the despair of his mother's departure, his father's beatings and scoldings, and the scorn of his neighbors. Due to a long-term lack of care, his values ​​have completely deviated from the normal path.

At this moment, Ji Bowei could vaguely see the beginnings of antisocial personality disorder.

Perhaps the Ren family gave him a glimmer of light in the darkness, preventing him from completely going astray.

He was a pitiful child.

If Ma Chen's parents had been even slightly more normal, he wouldn't have turned out the way he is now, filled with hostility towards the world, to the point of indiscriminately killing innocent people.

Fortunately, they were caught; otherwise, the probability of further incidents in the future would be very high.

It's useless to talk about rules with someone like that; the social contract is completely broken in his mind.

"Let's talk about Ren Yi," Ji Bowei changed the subject again.

Ma Chen scoffed, "What's so interesting about Ren Yi? I only know her, we're not close."

Ji Bowei: "Are you just acquaintances? You have a favorable impression of the Ren family. While you are grateful to Ren Yi's mother, have you also developed feelings for this girl?"

……

P.S.: Chapter Two will be released at night.

(End of this chapter)