At twelve o'clock at noon, Xun Mu and Su Ping found a fast food restaurant, each ordered a casserole rice, and ate it quickly.

Halfway through the meal, Xun Mu's cell phone rang. Seeing that it was Brother Song, he immediately answered the call and asked, "How are you, Xiao Song? Did you get the clue?"

"Yeah." Brother Song's voice came from the microphone: "According to the suspect Sun Weitian's account, after meeting Zhang Yuntong, he returned to his training class to give a lesson to two foreign teachers.

Then, at about 5 p.m., he claimed that he had an hourly room with a female classmate from college, and the two had sex. Afterwards, he took a shower and arrived at Yida Plaza at about 7 p.m., where he met Er Junyan and others.

Have a meal."

Xun Mu glanced at Su Ping, put down his chopsticks and said, "In other words, apart from the two foreign teachers, he only met that classmate after meeting Yu Zhang Yuntong?"

"That's right." Brother Song replied: "It's about the murderer behind the scenes, and it's also about himself. I think he shouldn't lie."

"What's the classmate's name?"

"Du Xinyue."

"Huh? Is it her?" Xun Mu was a little surprised, then nodded clearly: "It is indeed her."

"Do you know her?"

"I just heard from Zhang Yuntong that she is the academic committee member of her class. I didn't expect that she would also get involved with Sun Weitian." Xun Mu said: "It seems that Zhang Yuntong doesn't know much about her classmates and friends.

I just don’t know if these two are underground lovers or if they are long-term running buddies.”

"Well, from what Sun Weitian said, he is a runner." Brother Song said: "In addition, Du Xinyue also found something in his pocket and asked him what it was, but he didn't say it. He just said it was a good thing. Tonight

To use.

In addition, when he was taking a shower, he vaguely heard the sound of opening and closing doors, and guessed that Du Xinyue might have gone out. I think Du Xinyue must have guessed something, and it was at that time that he went to get sodium cyanide and change the medicine.

.

Moreover, Sun Weitian only met a few people in the afternoon, and it seems that she is the only one who has the conditions to change medications."

Speaking of this, Brother Song paused and then continued: "When I asked him last night, he didn't expect it to be Du Xinyue's fault, so he was too embarrassed to tell us about it... However, Du Xinyue is the second gentleman.

Has Yan ever had any conflicts?"

"We had a quarrel, and the conflict was quite big." Xun Mu replied, and then said: "I'll tell you about this later. Well, have you asked about Du Xinyue's address, employment unit address and phone number?"

"Sun Weitian has given it to me. But to avoid alerting others, I haven't called him yet. As for his address, it's relatively close to where Zhang Yuntong works. How about Captain Xun and Captain Su go there in person? Well, I'll take someone with me.

become……"

"No, Lao Su and I will go." Xun Mu replied.

After hanging up the phone, he relayed the matter to Su Ping and said, "Eat quickly. After dinner, we will go meet this Du Xinyue. I think the medicine in Sun Weitian's pocket must have been changed by her."

After a pause, he asked doubtfully: "But it's a little strange. Why didn't she just change the medicine inside, but also the bag? Otherwise, there were Zhang Yuntong's fingerprints on the bag. She would have jumped into the Yellow River to wash it.

It’s unclear.”

"I didn't expect it." Su Ping didn't take it seriously and said:

"First of all, I'm afraid she doesn't know where the medicine came from, and she doesn't mean to frame Zhang Yuntong. Maybe she just wants to deal with the second Junyan, and maybe she also wants to frame Sun Weitian for this guy's urine. I guess

once threatened Du Xinyue;

Secondly, she was inevitably a little nervous when doing this kind of thing. She might not be able to notice the subtle differences between the two bags. In addition, she should have been wearing gloves at the time. There were no fingerprints on them, and Sun Weitian would inevitably touch them when using them.

The bag will be stained with fingerprints. According to common sense, he will not be able to escape;

Thirdly, don’t forget, Du Xinyue is also studying chemistry, so he doesn’t know that this stuff is highly toxic and can be absorbed through the skin, and the bag is so small that it is difficult to operate with gloves...

Last but not least, just replace the bag with the pills. It’s straightforward. Normal people would do this, right? How is this suspicious? Why are you so suspicious? "

"emm." Xun Mu coughed twice: "I thought she was too smart. I just think that if it were me, I would not touch the bag and only change the pills inside."

"That's because you have rich investigation experience, and your counter-investigation capabilities have also improved. How can ordinary people have such thoughts?" Su Ping glanced at him: "It is a taboo to judge others by yourself, you should not do this.

It was the mistake. What, are you tired?"

"A little bit, I just slept for two hours last night." Xun Mu waved his hand, picked up the bowl and quickly finished the rest of the meal, then wiped his mouth and said, "I'm full... Well, Xiaosong also sent me the address.

Alright, let’s go.”

…

"Hello, is there anyone?"

Xun Mu knocked on the door of the unit for a long time but no one responded.

"Not at home... are you at work?" he asked.

Su Ping frowned, thought for a while and said, "Go to her company and have a look. Song should send you a gift together, right?"

"Yes, it's quite far away, on the outskirts of the city." Xun Mu nodded lightly: "It's strange that she, a teacher's major student and a girl, actually entered a chemical factory instead of teaching..."

"Chemical factory?" Su Ping clicked his tongue: "Then it would be quite easy for her to get sodium cyanide."

"Nine times out of ten, it's her." Xun Mu raised his head and said, "I'm worried about her running away now. Besides, it's a bit strange. The chemical plant is so far away. It stands to reason that she wouldn't be able to run away while Sun Weitian takes a bath.

You just have to go back and forth to get the medicine."

"It will become clear when we catch the person." Su Ping said, "Well, in this case, you ask your colleagues from the nearby police station to go over and ask. First, make sure the person is there. If he is, take control immediately and wait for us to come over."

"good."

…

Fifteen minutes later.

Xun Mu put down his phone and said with an ugly face: "She ran away as expected. She resigned at the end of last month. Her colleagues haven't seen her for a while."

"So, she was ready to run away a long time ago." Su Ping swallowed a can of Red Bull, lowered the window, lit a cigarette, and said, "Maybe she had a motive to kill, but she just happened to

When I get an opportunity to remove myself, I seize it decisively."

"It's quite a headache..." Xun Mu closed his eyes hard, rubbed his eyebrows, and then said to Su Ping: "Old Su, please immediately notify someone to contact the relevant units to check Du Xinyue's ticket purchase and travel information.

Record."

"Okay, what about you?"
Chapter completed!