"You say that I killed my second brother, what evidence do you have?" Cao Zhang asked Cao Pi.

"The people in the second brother's mansion saw you put something in the wine with their own eyes! The remnants of the liquor in the house have also been experienced, and it contains highly poisonous, and this is the evidence! Cao Pi said.

"This time there are not only witnesses, but also physical evidence, you can't deny it!" Cao Pi bit the word physical evidence in an accentuated tone.

"Yes, there is still physical evidence, then even the witnesses will be called to me to see." Cao Zhang responded calmly.

Cao Cao waved his hand, and a guard came up holding a wine jar and placed the wine jar in front of Cao Zhang.

He was followed by several housekeepers and subordinates.

Cao Zhang glanced down at the wine jar, and there was a small half jar of wine in the jar.

"A jar of new wine, now there is only a small half left, is it all the second brother who drank it alone, and I never drank a sip again?" Cao Zhang said with a sneer.

"The second brother was already drunk at the time, and you know that the wine is poisonous, so naturally you won't drink it again!" Cao Zhen said.

"That's right, after Ziwen Gongzi let go of the medicinal powder, he kept persuading my son-in-law to drink, but he never drank it again, and it didn't take long for him to get drunk and fall to the ground first!" The subordinates also echoed Cao Pi's words.

"After I fell, did someone carry me away?" Cao Zhang immediately asked.

"Yes......" the servant responded.

Cao Zhang seized the loophole in his subordinates' words and immediately interrupted him: "That means that when I was carried away, my second brother was fine?" How can you conclude that I killed him? ”

"Because my son-in-law has already drunk first, let's send him back to the room first."

"Early this morning, we wanted to wake up Gongzi, only to find out that he had been poisoned to death, and then we remembered that Ziwen Gongzi had drugged you in wine, and hurriedly reported to Sikong!" The butler argued.

Cao Cao's face became gloomy again, and he looked at Cao Zhang quietly: "Do you have anything else to say?" ”

"Father, I have a way to prove my innocence and prove that these subordinates have framed me!" Cao Zhang responded calmly.

Cao Cao looked at Cao Zhang in disbelief, he didn't expect that this brute boy who only knew how to dance with guns and sticks since he was a child would give him a strange feeling today.

I always hoped that Cao Zhang could read more and learn some strategies.

But Cao Zhang has always said that his ambition is to be a general who leads the army, and he refuses to study.

Cao Cao persuaded him several times to no avail, so he had no choice but to give up.

But what Cao Zhang did today was a big surprise to Cao Cao.

The method of proving that he did not rape the princess before, although it was vulgar, but it was extremely effective, in fact, it took great wisdom to think of it.

He still says that there is a way to prove that Cao Shuo's death has nothing to do with him? Is it a bluff, or is it a self-confidence?

"How do you prove it?" Cao Cao asked.

"Please ask my father to invite the body of my second brother, and I will be able to tell you the truth!" Cao Zhangyan responded conclusively.

Cao Cao did not hesitate at all and immediately waved his hand.

Moments later, Cao Shuo's body, covered with a white cloth, was carried into the hall and placed on the ground.

"Second brother!" Cao Zhang stepped forward, knelt in front of Cao Shuo's corpse, threw himself on his corpse and began to cry loudly.

Everyone obviously didn't expect him to have such a hand, and they were all stunned.

The corners of Cao Pi's mouth showed a sneer: It turns out that your so-called self-proof innocence is to pretend to be pitiful here, trying to seek your father's sympathy? Then you've got the wrong idea!

Cao Cao looked at Cao Zhang, who was screaming loudly in front of him, and his face became ugly, and he couldn't see Cao Zhang's intentions for a while.

"Enough, don't pretend here! Come on, drag down this murderer who killed the second brother! Cao Zhen shouted loudly.

Cao Cao didn't open his mouth to stop him, and several guards rushed towards Cao Zhang again.

Cao Zhang suddenly raised his head at this time, stretched out his hand to block the guard, and said loudly: "I have found evidence!" ”

Cao Zhang's words surprised everyone, Cao Cao then waved his hand, and the guards quickly retreated.

"Say, what did you find?" Cao Cao looked at Cao Zhangyu and asked.

Cao Zhang pointed to Cao Shuo's corpse and said loudly: "I have found out that the second brother was not poisoned by poisonous wine!" ”

"Nonsense, just now the medical officer has already checked the throat of the second brother with a silver needle, it is black, and you dare to say that he was not poisoned?!" Cao Pi scolded loudly.

Cao Cao glared at Cao Zhang, obviously he also thought that Cao Zhang's words were nonsense!

"What I said is true! I don't believe that you can use a silver needle to try the second brother's abdomen, if he is really poisoned to death, the silver needle is inserted into the abdomen, and it will also turn black! Cao Zhang said loudly.

Cao Cao waved his hand, and a medical officer entered through the door, came to Cao Shuo's body, and inserted a silver needle into the abdomen for examination.

Everyone held their breath and waited for the moment when the silver needle was pulled out.

When the silver needle was raised, it really didn't change color.

"See? The silver needle did not turn black, which means that the poison did not enter the second brother's abdomen at all, and he was not poisoned by poisonous wine at all! Cao Zhang said loudly.

"Just because the silver needle didn't turn black, you say that the second brother was not poisoned by poisonous wine? Maybe it's just the silver needle failing! Cao Pi was still quibbling.

"Can the silver needle fail?" Cao Zhang smiled, "Then let me ask, how did you prove that the residual wine was poisonous just now, and it was also tested with a silver needle?" ”

"Are you trying to say, there's something wrong with this wine?" Cao Cao heard the meaning of Cao Zhang's words and asked directly.

"Exactly, I beg my father to order a dog to bring a piece of meat, and I will prove it to my father."

A moment later, a dog was brought in, and Cao Zhang soaked the meat in the residual wine for a while, and then threw it to the dog to eat.

After the dog ate the meat, after a moment, he began to convulse all over, and then his tongue stuck out and whimpered.

"We have known for a long time that wine is poisonous, and you are doing this excessively." Cao Pi said contemptuously.

"It's true that the wine is poisonous, but I just put the meat in it and soak it for a while, which is enough for the dog to eat and kill on the spot!"

"According to the confession of the previous subordinate, the second brother drank half a jar of wine alone, but he was only drunk and sent back to the house, and he was not found dead until dawn."

"It should be clear whether he drank poisoned wine to death, right?" Cao Zhang explained very calmly.

"This ......," Cao Pi was speechless.

The corners of Cao Zhang's mouth rose slightly, revealing a hint of a smile.

When he saw half a jar of remnant wine, he saw that there was a problem.

As a forensic doctor, he just sniffed with his nose and smelled the smell of aconitum poison in the wine.

At the end of the Han Dynasty, the process of making poisons was not perfect, and it was not possible to produce colorless and odorless poisons.

Aconitum poison is very toxic, generally only 3-4mg can be fatal, and at this time it is simply not possible to make a chronic poison.

With this, Cao Zhang concluded that Cao Shuo's death had another reason, so he offered to see his body with his own eyes.

Cao Cao looked at Cao Zhang in front of him, and he was extremely surprised in his heart, he didn't find the details of the poisonous wine, and he was actually recognized by Cao Zhang, how could he suddenly have such a careful mind?

Before Cao Cao could think clearly, Cao Zhang had already said another sentence that shocked him.

"Father, the second brother was not poisoned by poisonous wine at all, but was bitten to death by a poisonous snake!"