"Of course you can." Mu Qingcheng replied.

Cheng Yijie smiled slightly, and asked Chen Yufei instead: "Has Ji Rongrong's alibi been confirmed?" ”

"Confirmed." Chen Yufei said that Ji Rongrong's classmates confirmed that on the way to the conference room, Ji Rongrong received a phone call, the time of which was consistent with Jiang Lei's call record. In addition, since 2:50 p.m., people have been with Ji Rongrong, and no one knows where she is before 2:50. ”

Cheng Yijie was silent. A room full of people waited quietly. Despite the dry ice's cooling effect, the tiny living room was still stuffy and everyone was sweating. Mu Qingcheng couldn't help but secretly observe Cheng Yijie, sweat was dripping down his cheeks, but he didn't care, just stared intently at the pile of animal carcasses and dry ice on the ground.

At this time, he is not smiling, serious and serious, not as evil and sultry as when he teased her repeatedly before, but in her opinion, he is more charming. She took out a pack of facial tissues from her bag, took out a piece to wipe the beads of sweat on her forehead, and handed a tissue to Cheng Yijie very easily, she regretted it after doing this action, why should you care about him and care about him? I should be disgusted with him!

Cheng Yijie took the tissue, said "thank you", and continued to pay attention to the test results while wiping his sweat.

Time passed slowly, and the dry ice on the corpse also evaporated rapidly, forming a thick white fog that rose and appeared, quite like stage smoke. Dry ice is sublimated into a non-toxic, odorless, gaseous carbon dioxide that is 1,000 times larger than the solid area, and gradually dissipates from the smoke.

After about four hours, the dry ice completely evaporated and dissipated, leaving no traces. The forensic examination confirmed that the time of death was incorrectly inferred because the dry ice delayed the decomposition of the body, so that the actual time of Jiang Lei's death should have been brought forward between 1 p.m. and 3 p.m., rather than between 3 p.m. and 5 p.m. as previously inferred.

Mu Qingcheng had already understood that someone had killed Jiang Lei and then faked the suicide scene. But as persona non grata, she consciously kept silent and did not cause trouble to the police.

"Obviously, Jiang Lei was poisoned to death. There is no problem with the wine bottle, the poison is in the wine glass. Wine bottles, wine glasses, and poison bottles were all found only to be fingerprints of the deceased himself. Chen Yufei said, "There was only the cork of the wine bottle left, maybe there were the murderer's fingerprints on it, so it was taken away by the murderer." But it doesn't make sense, she can completely wipe off the fingerprints, and then borrow the deceased's hand to make fingerprints, without the bottle stopper, which makes people suspicious. ”

"It's weird that the whole house was rummaged through, and I just couldn't find the cork." Zhao Jun also said.

Cheng Yijie did not respond to their questions, but asked Zhao Jun if the tools had been brought.

Zhao Jun immediately took out the tools from the toolbox.

An hour later, Cheng Yijie asked Ji Rongrong to have dinner at a nearby restaurant, and he invited Mu Qingcheng to go with him, although Mu Qingcheng was disgusted with Ji Rongrong, but knew that Cheng Yijie's move must be useful, so he agreed.

Ji Rongrong's mental state was good, and there was no sadness on her face, which made Mu Qingcheng wonder if she really loved Yang Ru.

"I asked you to come because I feel that there are some things that need to be told to you, this is my personal behavior, and it has nothing to do with the police, and they don't know about our meeting." After Ji Rongrong sat down, Cheng Yijie said straight to the point, "Professor Yang's USB flash drive has been found, hidden in the shoes in the shoe cabinet of Jiang Lei's residence. It has been identified by the technical staff of the Public Security Bureau, and it is a research material on the invisibility cloak. ”

Ji Rongrong's eyes widened in shock. "The USB flash drive was taken by Jiang Lei? But didn't you say that he left before the explosion? ”

"He left, but after the explosion, the scene was chaotic, and he could go back and pick up the USB flash drive while he was in chaos." Cheng Yijie said, "The police have determined that Jiang Lei caused the explosion and took away the USB flash drive." ”

"It's too much!" Ji Rongrong slapped the table angrily.

"I learned from Chen Yufei that the information in the USB flash drive is incomplete, and the most critical content is missing." Cheng Yijie looked at Ji Rongrong, "That part of the missing information, Professor Yang must keep it elsewhere, if you know where it is, we can make a deal, you make a price and sell me the complete information." ”

As soon as these words came out, not only Ji Rongrong was surprised, but Mu Qingcheng was also shocked.

"What are you buying information for?" Ji Rongrong asked vigilantly.

"Of course, it's about making money, I'm a businessman, and I value economic interests the most." Cheng Yijie said bluntly, "I went to the scene to see your demonstration that day, it was very interesting, the invisibility cloak is very versatile, and if it is put on the market, it will bring unlimited business opportunities." You don't have to worry about infringement, since I have a fancy to buy it, I naturally have a way to settle everything for you. ”

Ji Rongrong glanced at Mu Qingcheng. "In front of her, you dare to make a deal with me?"