Although Xiao Yiyi promised Xiao Yang not to ask about this matter again and wait for Xiao Yang to deal with it, according to his temperament, it is impossible to investigate it if he knows the clues.

However, Xiao Yang was right, if the other party had already planned to find a replacement for the dead ghost, now at this time, it might be even more bad for Lin Jing, so he could only investigate secretly.

The police have concluded that the deceased was poisoned by potassium cyanide.

Although potassium cyanide is a chemical product, it belongs to the controlled drug category. But in remote areas, this medicine is not difficult to obtain, and many people in the village use potassium cyanide to poison dogs.

Moreover, potassium cyanide is easily soluble in water, transparent and colorless, and it may be unaware when it melts into ice.

Since it is difficult to investigate the source of the poison, the source of the ice cube is to be investigated.

Xiao Yiyi was dressed in all black clothes at night, because the street lights in the town were not bright, and wandering on the road like this would not attract too much attention.

He walked back and forth twice on the street near the bubble tea shop, calculating the time and footsteps of Lin Jing going out that day, and roughly locked the suspicious shops on three stores.

The first one is a dessert shop on the same street, because it sells shaved ice, so there will always be ice cubes.

The second is a convenience store on the next street, and there may be ice cubes because there is a freezer in it.

The third is the bar not far from the corner, because the bar has to be bartending, it must have been stocked with ice cubes for a long time.

These three are the three most suspicious within the mileage, but because they all have some restrictions, Xiao Yiyi can't determine which one is the one that really borrowed the ice.

First of all, the shaved ice in the dessert shop is generally made with a large ice cube, and then a knife is used to shave some crushed ice on it, although there are also ordinary Xiaoice pieces and then beaten into powder with a wall breaker, but this kind of small family can, generally those who open a store will choose to use large ice cubes, so whether the dessert shop has Xiaoice blocks can not be determined.

The second is a convenience store, although there is a freezer inside, but it is generally used to store frozen drinks or food directly, and the use rate of ice cubes made into ice cubes is not high, so it is uncertain whether there are Xiaoice blocks of general ice cubes.

Finally, there is the bar, although there must be the kind of Xiaoice in the bar that is put in the milk tea, but because the bar is only open at night, it should be closed during the day, so it is unlikely that the ice cubes will be borrowed from here.

The most direct way is to go to these three stores and reconfirm.

However, at this time, the prisoner should be in a state of high vigilance, and if he confirms it now, he may really be alarmed.

So what to do? Is it possible to just stare blankly and can't do anything?

Xiao leaned against the wall on the corner of the street one by one, lost in thought.

At this moment, not far behind Xiao Yiyi, there was a dark shadow that kept staring at the man not far in front.

After a while, he took out his phone and came out, losing on the screen.

[Master, it seems that there are already people who suspect it, what are we going to do next?]

Lin Jing had just returned from the interrogation room, and although she was only sitting there answering a few questions, she felt very tired, as if it was harder than a day's work outside.

The police officers who asked always asked those questions in a loop, and sometimes asked them from a different angle, but in fact, it was still the same question, that is, to see when they could break through Lin Jing's inner defense, and finally the defense line collapsed, and they were willing to admit their crimes.

Although Lin Jing had seen a lot of these tricks of the police on TV before, she really had to experience it herself to know how desperate she was.

Every hour, he would be called in for questioning, and he didn't even have time to rest completely.

Every time you are still in a state of confusion, the police officer begins to ask questions one by one, if you don't answer seriously, or if the details before and after are a little different, you will be caught and asked more than a dozen times, so that you keep repeating the answer to that detail, which time shows a flaw.

Lin Jing finally knew what mental torture was, and sometimes it really seemed like she wanted to admit it, so that she could get a good night's sleep.

But she still kept her senses, she knew that Xiao Yiyi would not leave her alone like this, maybe now he was trying his best to rescue himself outside, and he must not let down the efforts of others and let his actions be in vain.

Lin Jing was still very grateful to Xiao Yiyi in her heart, if he hadn't been by her side, maybe she would have really given up on herself and admitted that she was a murderer.

Although she is mentally tired, she still can't be idle when she returns to the detention room, and she also has to clear the clues as soon as possible to find out who the real murderer is and how the other party poisoned her.

However, because Xiao Yiyi was in the process of transportation, and she didn't know what the situation was when the milk tea was delivered, she couldn't tell what the murderer was and when.

However, from some questions asked by the police, she could probably guess that if there were only her and Ma Ying's fingerprints on the cup, the chances of being poisoned during transportation, or being poisoned after getting milk tea were not high.

If that's the case, you have to find clues from her process of making milk tea.

Lin Jing has a habit of cleaning every item before using it, if the original poison was placed in the vessel, then it would have been washed away by her a long time ago, and it is impossible for there to be such a large dose that still kills people.

If the raw materials are toxic, it is impossible, because many raw materials are shared, and there was a takeaway order that afternoon that was the same as Ma Ying's, so if the raw materials were toxic, then the unlucky egg would definitely end up the same.

What went wrong? Could it really be that I went out to borrow ice?

Now that I think about it, this is quite likely, because all the ice cubes borrowed back have been used up, leaving no traces, and I have washed the box cleanly, so there is no chance to verify it.

Lin Jing recalled that the two boys who were carrying goods in the bar that day looked very easy-going and had a very kind smile, if it weren't for the deduction method by elimination, she didn't want to point the finger of suspicion at these two men at all.

Wait a minute!

Lin Jing seemed to think of something and interrupted her train of thought.

I remember that the whiter man who was moving the goods at that time asked another darker-skinned man if so-and-so was inside, and then the two of them went in together.

If there was a third person in the store, then that person was also very suspicious, and she remembered that the last two young people to move the goods were talking about the ice cubes that the person in the bar had filled.

Could it be that the man is the real murderer?