Qi Yuan also smiled back and didn't say much.

It's useless to say more.

Su Ping pouted: "Tsk, you are not as cute as before when you don't talk back."

Qi Yuan:???

"Ahem," Su Ping coughed twice, and then said calmly: "Test you, do you think it is better for us to continue collecting evidence now, or directly interrogate Zhou Jia, find a way to break through her psychological defenses, and directly let her

Did she confess?"

Qi Yuan gathered his attention, pondered for a moment, shook his head and said: "I'm not sure...but she obviously made many arrangements, and she was extremely thoughtful. Even if she had the fact of 'escaping' and was caught

I'm afraid I won't confess easily even if I'm right.

Apart from anything else, there is really nothing we can do if her mother is such a slut, and if she is in the same situation, we may have to be prepared to convict her with zero confession."

Su Ping clicked his tongue and said, "To put it bluntly, do you mean that you don't recommend interrogating her now?"

Qi Yuan nodded and said: "Brother Gao and Lao Hai are already tracing the source of the dry ice. Although it was indeed Zhou Jia and her husband who placed the order on his mobile phone and paid with his bank card, they might still be able to find some clues.

"

After a pause, he added: "Especially in the final handover, the delivery guy might be able to make a breakthrough. For example, when he went down to pick up the goods, her husband might complain, 'What weird things did you buy again?

', or mentioned words like dry ice."

"It's indeed an idea." Su Ping nodded, but then frowned slightly: "But the delivery boy can only provide personal identification, which is not very effective."

"Let's prove our guilt first. It would be good to have witnesses." Qi Yuan said.

Su Ping hummed, didn't say anything more, and just nodded lightly.

…

Time flies like an arrow, and it passes in the blink of an eye...

Several hours.

At the end of the evening regular meeting, Su Ping had several more entries in his notes, but there was no substantial progress.

On the contrary, Zhou Jia got a relatively favorable testimony - the designer sent the design draft to Zhou Jia that night, and Zhou Jia's request to him to rush the draft should not have been spur-of-the-moment, but had been urging him for some time.

Of course, we cannot rule out the possibility that Zhou Jia was deliberately waiting for this opportunity earlier. But relatively speaking, it is still a little good for her.

The knot between Su Ping's eyebrows got a little bigger.

Qi Yuan and others sat over. They opened their mouths several times, but they hesitated, and finally no words came out.

"No," Su Ping was upset when he saw this. He couldn't help but said: "What's going on with you guys? You opened your mouth and I opened my mouth. After going around for a while, I didn't say a word."

Damn it, everyone is farting with their mouths?"

"Ahem." Qi Yuan coughed twice and said quickly: "It's not that I don't say it, but I don't know how to say it... This guy, I have to say, is so clean that we don't even have a suitable breakthrough point.

Although she is not completely flawless, these evidences are not critical enough. If we can break her psychological defenses with this, it will be good, but if not, it will be difficult, and we will all have a headache."

"Gan." Su Ping cursed, took out a cigarette, lit it, and started smoking hastily.

In the conference room, the few remaining people fell silent again, and the atmosphere seemed very stagnant, making people feel very depressed.

"Forget it, forget it!" After a cigarette, Su Ping sat up straight, held the cigarette butt in his right hand and pressed it several times in the ashtray, then stood up, waved his hand, and said irritably: "Go away.

We’re done, let’s go back and have a rest, let’s talk about it tomorrow!”

Several people lowered their heads, slowly stood up and left the conference room.

Su Ping felt sulky again, and then walked back to his lounge, washed himself briefly, and went directly to bed.

I'm sleepy and can't control my temper. Go to sleep and recharge your batteries. I'll follow up tomorrow.

…

The next morning, Qi Yuan still got up early.

I didn't sleep at all the day before. I had a full sleep today, but my head is still a little dizzy, and I feel like I'm not functioning very well.

Looking at the time, he saw that it was still early, so he took a shower and felt a little better. Then he brushed his teeth and shaved off his beard before going out and walking to the detachment.

The detachment's breakfast is much cheaper than cooking it yourself, and it tastes pretty good, so it's natural that Qi Yuan is lazy.

After finishing a portion of rice rolls, he took the plate and looked around. Sure enough, he saw Su Ping, so he walked over, sat across from Su Ping, and said with a smile: "Good morning, Captain Su."

Su Ping looked up at him, ignored him, and continued to eat silently with his head down.

It was obvious that Su Ping was not in a good mood, very irritable, and didn't want to talk to anyone.

Qi Yuan didn't take it seriously and started eating on his own.

After finishing breakfast almost at the same time, the two of them stood up together, put the plates in the recycling bin, and left the canteen side by side.

Qi Yuan smiled again and asked: "Captain Su, did you sleep well last night? You seem to have recovered your spirits today? You don't need me to be your secretary anymore, right? What is my task today?"

Su Ping paused, glanced at him sideways, and asked, "Do you have your own thoughts in your mouth today?"

"Ah?" Qi Yuan was a little confused.

"That's a lot of talk!" Su Ping rolled his eyes and continued to walk forward. At the same time, he said: "You can follow Song to continue the visit today. You can do whatever he arranges for you to do. You must dig up some evidence. If nothing else works,

We also need to dig out more clues.

Merely knowing that Zhou Jia and her husband's family are white-eyed and selfish is of little significance. As you said yesterday, family conflicts, if they persist, can only prove that she did have a motive for committing the crime, but it cannot prove that she took action."

Qi Yuan nodded and said softly: "Okay, then I will go find Brother Song later."

"Yeah." Su Ping nodded and said, "Don't wait any longer. Go now. Don't hang around me. If you are annoyed now, you will feel unhappy if you get scolded later."

"How could that happen?" Qi Yuan chuckled, and said shamelessly: "I have been with you for a year, how can I not know that you treat us well from the bottom of your heart, and you also care about me when you scold me, and you are taking advantage of it."

"Who did you learn this from? You're so mean, you look greasy and disgusting!" Su Ping snorted: "Get out of here, if you continue to flatter yourself in front of labor and management, labor and management will kick you out of the police station!"

Qi Yuan shrank his neck and laughed twice, not daring to push Lai Lai any further.

At this moment, I saw Old Wei getting out of the elevator. When he saw the two of them, his eyes immediately lit up. He walked over quickly and said, "Hey, Captain Su! I was just going to have some breakfast to find you, and then I met you."

"Any discovery?" Su Ping looked at him, his irritability was suppressed for the most part, and he guessed that he might have made an important discovery.

But when he looked again, he saw that Old Wei's eye sockets were sunken and bloodshot. The lenses of his glasses were covered with dandruff and fingerprints, making them look gray. His beard was slovenly and his hair was messy. He couldn't help but ask: "You

You didn't stay up all night again last night, right? You've stayed up for forty-eight hours, are you really not afraid of sudden death?"

"It's okay. I planned to go to sleep for a while after breakfast and reporting the mission to you." Old Wei was very excited. Although he looked very haggard, he was paradoxically energetic, high-spirited and a little excited.

Said: "We can convict, we have evidence!"

"Oh?" Su Ping raised his eyebrows again and said immediately: "Tell me about it!"

"The glass door of the balcony." Old Wei said, and pointed back with his thumb: "Go to my office? There are photos, which will make it more intuitive."

"Okay." Su Ping nodded, glanced at Qi Yuan again, thought for a moment, and said, "Come here together."

"Hey!" Qi Yuan nodded immediately.

Quickly walking to Lao Wei's office, he took out the report, turned on the computer, and said at the same time: "Look, the glass door of this balcony is, to put it bluntly, a large frosted window. The 'back-locking' method is also the same as locking the window.

Likewise, the crescent lock used on the window is hooked as soon as you lift it up, making it difficult to open without damaging the glass.

And last night, our fingerprint inspector suddenly discovered that several fingerprints were found on the lower part of the window, right at the bottom edge. Now, these are the fingerprints we extracted, and there are also photos of the fingerprint locations. Take a look."

Su Ping took the photo and looked at it twice.

Then Lao Wei found a few more photos and handed them to Su Ping. At the same time, he said: "On-site trace inspection showed that Hu Weishan - Zhou Jia's father-in-law - did not lose consciousness immediately after pulling over the barbecue grill and fell to the ground.

He struggled for three or four seconds and rolled half a circle on the ground. Then he raised his hand and pulled the balcony door hard, but it did not open.

At the same time, I immediately informed Lao Tu, who immediately took out the body and conducted a detailed inspection of Hu Weishan's fingers, and sure enough, I found that his nails were slightly outward and there was slight bleeding, but it was not obvious."

Qi Yuan immediately asked: "That is to say, he instinctively wanted to open the balcony door to escape, but failed, and he used a lot of force at that moment, is that right?"

"The enemy." Old Wei nodded and said: "In addition, I asked the trace inspector to test the windows and doors specifically, and found that the resistance of the track was not great and was very smooth, and no carbon ash was found on it. It was just right to remove the carbon particles.

There is a possibility of coincidence such as being stuck on the track and not being able to pull it apart.”

Su Ping finally raised the corners of his mouth and said, "That is to say, Zhou Jia locked the crescent lock on the balcony door!"

"Yes." Old Wei excitedly poked at the investigation report and continued:

"More than that, we carefully studied the subtle traces at the scene, focusing on the traces left by the contact of skin sweat and oil with the ground. Finally, we concluded that Hu Weishan still held the windows and doors open when he lost consciousness and died, and the windows were

When the door was pulled open, his arm was dragged and slid some distance."

"oh?"

"There are many other subtle clues." Lao Wei continued: "Look at this animation restoration, the result is obvious!"

As he spoke, he opened an animation and said: "We infer that after the four victims completely lost consciousness and died, Zhou Jia went downstairs, covered her mouth and nose with a wet towel, quickly opened the balcony door and closed it again, and then

Open all the windows, leave the balcony, and close the door again.

She was very fast and moved a lot, so she was able to move Hu Weishan's hand, and she should have almost tripped. Hu Weishan had a small trampling wound on his forearm. It was a post-mortem injury, with no reaction to life, and there was a wound on the balcony.

The group's footprints were incomplete and messy, so they probably stumbled a few steps."

He spoke extremely fast, just in sync with the animation.
To be continued...