"We will handle this fairly. Mr. Su, please cooperate with us to give a statement."

Just then, a policeman rushed in.

"Captain! We went to the principal's office, but couldn't find him! Someone saw him run away as soon as our police car arrived."

Zhao Gang's face turned ashen instantly.

He turned to the other officers and gave them orders.

"Immediately issue a city-wide warrant for Liu Zhiqiang's arrest!"

...

Although Su Jianguo was not suspected in the case, he was still taken to the police station.

Su Jianguo sat in the interrogation room of the police station, with a cup of tea that had gone cold in front of him.

"Mr. Su, according to Wang Daikui's confession, Liu Zhiqiang instructed him to mix poison into the vegetables you supplied, with the aim of creating a food safety incident and framing you."

Zhao Gang flipped through the transcript.

Do you know why Liu Zhiqiang did this?

Su Jianguo shook his head.

"I didn't know Principal Liu at all; we met for the first time a few days ago. He came to my shop in person to order vegetables, and his attitude was very sincere. I even specially gave him an extra fifty pounds of tomatoes..."

He paused suddenly, his brows furrowed.

"Wait, Liu Zhiqiang... that name sounds familiar."

Zhao Gang keenly noticed this detail.

What did you remember?

Su Jianguo pondered for a moment, then suddenly remembered the detailed information about Zhang Haiyang that Lao Mao had investigated.

"Zhang Haiyang's brother-in-law, I think that's his name."

"Zhang Haiyang?"

Zhao Gang quickly flipped through the documents.

"The treatment revealed that Liu Zhiqiang's wife does indeed have two older brothers, Zhang Haiyang being one of them."

Upon hearing this, Su Jianguo immediately understood that this was the Zhang family's revenge.

"Yes, that's him."

Su Jianguo's voice turned cold.

"His wife's two brothers, one was sentenced to death for rape and embezzlement, and the other was sentenced to life imprisonment for organizing prostitution. I provided crucial evidence in both of these cases."

Zhao Gang's eyes widened.

"You mean, this is revenge?"

"Very likely."

Su Jianguo nodded.

"The Zhang family must have some influence; it's not surprising they retaliated against me."

Just then, a policeman hurriedly pushed the door open and came in.

"Captain! Liu Zhiqiang has been caught! He was intercepted on his way to the train station."

Zhao Gang immediately stood up.

"Take me to see him!"

In another interrogation room.

The interrogation room was brightly lit and glaringly white. Liu Zhiqiang sat on an iron chair with his wrists handcuffed.

Fine beads of sweat appeared on his forehead, his glasses were askew to one side, and his eyes behind the lenses were bloodshot.

"Liu Zhiqiang, you'd better tell the truth."

Captain Zhao Gang slammed a stack of photos on the table. The photos showed the caps of poison bottles and test reports found in the canteen kitchen.

"The evidence is conclusive; you can't escape."

Liu Zhiqiang's Adam's apple bobbed, and his voice became hoarse.

"I admit it, I orchestrated it."

"Why?"

Zhao Gang squinted.

"Why would a school principal target students?"

Behind the one-way glass outside the interrogation room, Su Jianguo stood quietly, also needing to know the answer.

Liu Zhiqiang suddenly laughed, and the laughter sounded particularly jarring in the small space.

"Why? Because Su Jianguo harmed my two brothers-in-law!"

His voice suddenly rose.

"Zhang Haiyang is my second brother-in-law, and Zhang Haishan is my eldest brother-in-law! One is sentenced to death, and the other to life imprisonment! It's all because of Su Jianguo!"

Zhao Gang frowned.

"So this is how you retaliate?"

"That's right!"

Liu Zhiqiang suddenly looked up, his eyes flashing with a crazed light.

"I'll ruin his reputation! I'll make him taste what it's like to lose everything!"

His voice suddenly lowered again.

"But I didn't mean to kill anyone... really... that medicine would only make the children vomit and have diarrhea..."

Zhao Gang sneered.

"The test results show that it's the highly toxic pesticide parathion; 0.1 gram can be fatal. You call this 'vomiting and diarrhea'?"

Liu Zhiqiang's face turned deathly pale instantly.

"Impossible...he said..."

He suddenly realized he had let something slip and immediately shut his mouth.

"he?"

Zhao Gang keenly grasped this key word.

"Who else was involved? Who gave you the pesticide?"

Liu Zhiqiang's eyes flickered, and sweat dripped into his eyes, but he didn't wipe it away.

"No! I planned it all by myself!!"

Zhao Gang stood up and slowly paced around Liu Zhiqiang.

"Principal Liu, do you know how many years you're sentenced to for attempted murder? It starts at ten years. If it causes serious consequences, it could even be the death penalty."

He leaned down and whispered in Liu Zhiqiang's ear.

"But if you now reveal your accomplices, it can be considered a meritorious act."

Liu Zhiqiang's hands began to tremble, and the handcuffs made a slight clinking sound.

He recalled his last conversation with his wife before his arrest.

"Remember, whatever happens, it can only be said that it was your idea alone."

His wife held his arm tightly.

"As long as you hold on, my father's connections can protect you, but if you betray him, we're all finished."

"I...I need time to think..."

Liu Zhiqiang said with difficulty.

Zhao Gang glanced at his watch.

"You have ten minutes."

Outside the one-way glass, Su Jianguo turned and walked towards the end of the corridor.

He needs a cigarette to calm down.

Zhang Haiyang's father...

He began to recall the old cat's investigation data.

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