Then Di Renjie's secret letter was also sent.

In a secret letter, Di Renjie told Chen Yi that he discovered abnormalities in Li Xian's death, and it can be concluded that Li Xian must not have died of serious illness, but someone should have done the trick. However, the person who did the trick did not medicine Li Xian, but applied some drugs that would aggravate Li Xian's condition, which eventually left Li Xian dead.

Moreover, those who secretly attacked Li Xian were very careful and had no trace left. He could not find too many valuable clues. Moreover, all those who served Li Xian were killed by Wu Zetian's orders and could not ask about the situation.

It can be said that his conclusion was based on experience and some vague determinations, and was not supported by actual witnesses.

After carefully reading the letter sent by Di Renjie, Chen Yi was able to determine what was going on.

In this world, nothing is impossible. The so-called "there is no airtight wall in the world," "there are ears in the partition walls", "If you want people to know, unless you don't do it", these words are nonsense. Many things will be discussed privately, but they will not be heard from others. If you do many things secretly, you will never be known. As long as you say it is private, you will be hidden.

Just like poisoning and killing people, many poisons will soon be decomposed in the stomach after taking them. No matter how much they are checked afterwards, they will not be able to find any poisons left in the body. Just like the famous pesticide "Leguo" in later generations, they will be decomposed soon after taking them. Even if a person dissects the body after death, the poison will not be found. Also, some drugs themselves cannot be said to be toxic. Normal or healthy people will not have any abnormalities, and they may even have therapeutic effects. However, if people with special diseases continue to use them, they may be fatal.

If someone who is very familiar with drugs gave Li Xian some drugs or poisons that are difficult to detect and secretly murdered him, it would be impossible to detect them with the current technological investigation conditions.

In later generations, a TV series about the detective Di Renjie played this historical celebrity into a mythical character, as if there was no case that he could not solve. This is purely nonsense. In the later generations of many modern investigative methods, the case-solving rate was astonishingly low and the technological conditions were very backward, how could it have such magical ability to solve cases?

In the death of Li Xian, Di Renjie judged based on his own experience that the deposed emperor was killed by him, but he could not find a basis for supporting this judgment. There was no sufficient evidence, nor could he draw this conclusion, and it was impossible to find out the real culprit behind the scenes.

The perpetrator must have planned it a long time ago, and spent a lot of effort to clear the traces afterwards. Moreover, all the people serving Li Xian were executed by the angry Wu Zetian. No evidence was left. It was a few days since Li Xian died when Di Renjie arrived in Fangzhou. It can be said that all the traces were almost destroyed. It would be unlikely to let Di Renjie completely solve the case.

Di Renjie asked Chen Yi in a intensive manner how to report this to Wu Zetian.

After thinking for a whole day, Chen Yi replied to Di Renjie that according to the investigation results report, no useful evidence was found to prove that Li Xian died of homicide. In other words, based on the current investigation, Li Xian's biggest possibility was that he died of illness or that the drug was not in the right way, which led to his serious illness and eventually died.

Di Renjie finally handed over the report similar to what Chen Yi said to Wu Zetian.

In fact, it was not necessary for Chen Yi's instructions, and Di Renjie also knew that the consequences of submitting such a report would be lighter. Chen Yi told him that Li Xian's death was probably the result of Helan Minzhi's sending people, and Helan Minzhi might be instructed by Wu Zetian. Although there is no way to prove all this, Li Xian is already dead, so let him die, and don't go into it too deeply. At least Chen Yi doesn't want to completely turn against them now.

Li Xian's death is also more beneficial than disadvantages for Chen Yi.

When the only surviving prince born to Li Zhi and Wu Zetian died, almost no one could replace Li Chongrun as the emperor. Li Zhi still had a few sons alive, but they were not Wu Zetian's biological sons. Those sons have lived a miserable life these years and are often tortured by Wu Zetian. As long as Wu Zetian is in one day, those few people will never have a chance to make a comeback.

Therefore, Chen Yi felt that it was a good thing for him whether it was Wu Zetian or Helan Minzhi to remove Li Xian.

But he also knew that this matter was likely to be blamed on him. What he had to do now was to clear the stigma that he might have been thrown on and use what to prove that he was not a plan for this matter. In fact, as long as Wu Zetian believed it, Chen Yi felt that this was not a problem.

If there was no evidence in the report submitted by Di Renjie that Li Xian was poisoned and died of illness, there would definitely not be many people who suspected him.

But Chen Yi also knew that there would always be people who would pounce on his head, and those who wanted to destroy his reputation or pull him off the horse would take every opportunity to frame him.

Chen Yi was sure to think that when Di Renjie handed over his investigation report, but before the person came back, some people who read the report took the opportunity to press the charge on him. This person was no one else, but his eldest uncle Helan Minzhi.

After Di Renjie's report was quickly sent to the palace and handed it to Wu Zetian, Wu Zetian also summoned Helan Minzhi to discuss it as soon as possible. "Minzhi, you have read the report presented by Shangshu Di, and I really didn't expect Xian'er to die of illness!" Wu Zetian said to Helan Minzhi with emotion: "In recent years, my aunt has treated him badly. Even before he died, she has not let him live a good life. I have not realized it when I see him again. My aunt will feel guilty for the rest of her life!"

After chatting with Chen Yi, she basically decided that this matter was not done by Chen Yi, and pointed the suspicion at Helan Minzhi.

However, there is no direct evidence to prove that Li Xian's death is related to Helan Minzhi. Now the report submitted by Di Renjie also told her that after a detailed investigation, it was impossible to prove that Li Xian's death was caused by poisoning or other means of murder.

Although Di Renjie's report was vague, no direct evidence was found to prove that Li Xian died of homicide. Wu Zetian basically accepted this argument, thinking that Li Xian was really sick because of his hard life and poor physical conditions. He also suffered from poor treatment conditions and worsening his condition. However, she did not completely believe this, and always felt that there was a mystery in this matter.

But even Di Renjie can't find out heresy, so there is no way to do it.

There have been many major cases that Di Renjie has investigated in recent years. It can be said that this Minister of Justice is recognized as the number one detective of the Tang Dynasty. He cannot find out the specific case, so I believe no one else can investigate it.

If Li Xian was killed, it can only be said that the person who started the attack was very skillful and his methods were very hidden, and he was meticulous and did not leave any traces. Wu Zetian didn't want to go into the detailed investigation. She felt that the investigation would bring more bad results.

After reading the report presented by Di Renjie, Helan Minzhi breathed a sigh of relief, and he was completely worried.

But he didn't give up, but said bad things about Chen Yi in front of Wu Zetian.

"Auntie, Minzhi carefully read the report presented by Di Renjie, and always feels that something is wrong!"

When Wu Zetian heard this, he was moved and raised his eyebrows and asked, "What's wrong? Tell me about it with my aunt!"

Seeing that Wu Zetian's expression was moved, Helan Minzhi was a little happy and immediately took advantage of the situation and said, "Auntie, Di Renjie just said that he did not find any specific evidence that he was obviously poisoned by someone. According to the investigation, Xian'er's greatest possibility was that he died of illness. Can this be said that Xian'er may still be poisoned by someone? It's just that no evidence was found!"

"Of course there is this possibility!" Wu Zetian was not surprised by this.

If Li Xian was really poisoned, she now thinks that it is not Chen Yi who is most likely to do this, but Helan Minzhi. But no matter who takes the action, since the true face of the case can no longer be found, she doesn't want to continue to investigate.

Chen Yi and Helan Minzhi had a few words that touched her heart, that is, Li Xian died, which was very beneficial to her becoming emperor.

It can be said that except for the little emperor Li Chongrun, Li Tang no longer has the right to be the emperor. If she controls Li Chongrun and takes the power of the government tightly in her hands, she can do whatever she wants. It is not a very simple thing to depose the little emperor. It is easy to make Li Chongrun live in this world without the chance to live in this world, and it will not let anyone find any abnormalities.

But she also regretted that she had not investigated the matter clearly and could not attack some opponents or potential opponents and do some cleaning measures.

Seeing that Wu Zetian looked thoughtful after hearing what he said, Helan Minzhi became more and more excited, waved the report of Di Renjie in his hand, and said as if he had discovered a new continent: "Auntie, Minzhi felt that there might be a lot of mystery in this. Di Renjie is Chen Yi's confidant. Could he find any heresy and point it at Chen Yi, but he dared not report it, so he concealed it for Chen Yi, so the report submitted was also vague!"

"Auntie, Minzhi had originally opposed asking Di Renjie to lead the investigation, just because he was worried that he would cover up something for Chen Yi. It seems that Minzhi's concern is not redundant..."

"Minzhi, why do you say this?" Wu Zetian frowned and interrupted Helan Minzhi's words, "In this matter, my aunt believes in Chen Yi's innocence, and he should not have intervened in this matter!"

"But! Chen Yi has the military intelligence agency in charge, and the people there are all experts who do secret matters. It is easy to kill people invisibly!" Seeing that Wu Zetian did not blame him, Helan Minzhi became brave and took advantage of the situation and said, "Auntie, Minzhi thinks that the position of the military intelligence agency should be entrusted with others, and do not let Chen Yi's confidants take the role, otherwise the military intelligence agency will always obey Chen Yi's orders!"

"Then who do you think will be better?"

"Auntie, Minzhi is willing to take charge of the Military Intelligence Institute for his aunt!"

"No!" Wu Zetian refused without hesitation, but did not want to say harsh words. Instead, Wen Yan said to the shocked Helan Minzhi: "Minzhi, my aunt will seriously consider this matter and will definitely find a way to weaken Chen Yi's influence on the Military Intelligence Agency! Xian'er's death is a conclusion. Don't discuss anything privately, do you understand?"
Chapter completed!