The Capital Police Department is different from other local police stations. There are all police officers on duty in the break room of the unit.
Moreover, because they were in the same city as the Criminal Department, the Police Department did not arrange accommodation for Zhao Yu and others.
In addition, the police station was far away from Cui Lizhu or the Miao family's mansion, so Zhao Yu had no choice but to pay for a room in the hotel opposite the police station.
At this moment, it was already past three o'clock in the middle of the night. Zhao Yu was lying on the bed after taking a shower, but his mind was still running like a revolving door, flashing back all the details of the video murder case.
Zhao Yu knew that he could no longer ponder like this. Since he already knew that this was a long tug-of-war, he had to maintain enough energy to cope with the future showdown.
So, he had to use an invisible sleeping pill on himself to force himself to sleep.
Perhaps, he had become dependent on sleeping pills. After using them, he suddenly felt relaxed and his tense nerves relaxed.
call…
He silently made up his mind that after solving this case, he must take good care of himself and never take medicine easily again.
Although system props have no toxic or side effects, relying on drugs to force you to sleep is not a good habit.
After soothing his nerves, Zhao Yu finally had time to take a good look at his system interface again.
Although the Kai Gua area is still frozen and will take a long time to thaw, his adventure points have been growing steadily.
In the past few days, with various encounters in the investigation of the video murder case, his points have soared by more than 4,000 points, and the total points have reached more than 17,000 points, setting a record high.
If we continue to develop at this rate, it will be just around the corner if we want to reach 100,000 points and then upgrade to another level.
Zhao Yu couldn't help but be filled with longing. He didn't know what advanced functions would appear after the system was upgraded to another level.
But...
Zhao Yu glanced at the props in the prop column and thought to himself that although there were many props, they were of little use to the case in front of him.
Looking at all the props, it seems that only the memory flashback device may be of some use.
If I knocked Yun Duoer unconscious and then used the memory flashback device to extract the memory fragments of her kidnapping and murder, I might actually be able to see what happened in the case.
But…
Can this kind of prop be used
First, if Yun Duo'er is knocked unconscious without permission, she may get caught and it will be difficult to explain;
Second, the memory flashback device can only flash back 5 minutes of memory, and there are not many left. There are only two left. If you don't find the right time, it will be wasted.
Third, the video extracted by the memory flashback device can only be viewed by oneself and cannot be used as evidence in court.
By now, Zhao Yu was certain that Yun Duo'er was the real murderer, so there seemed to be no need to use the memory flashback device.
Besides, the scenes flashed back by the memory flashback device are also the shots that Yun Duo'er saw himself. What's the difference between that and watching the murder video on the tape
Therefore, the top priority is to collect evidence, and we can no longer rely on these side theories.
well!
Zhao Yu sighed and thought to himself, it would be great if he could draw a hexagram now. No matter what hexagram was drawn, it would at least help him make a judgment.
Just like the last demon case, even if the hexagram does not spell out the "Gen" hexagram, it still means that you are looking in the wrong direction and you can safely try other methods.
On the contrary, you can prove that your thinking is correct. But now, without the instructions of the hexagram, I feel a little confused.
Thinking, thinking, the sleeping pills began to take effect, and Zhao Yu quickly fell into a dreamless sleep...
…
When he woke up the next day, it was already past eight o'clock in the morning. Zhao Yu, who was worried about the case, didn't even bother to eat breakfast, so he hurried back to the Capital Police Station.
"Team leader," Zeng Ke told Zhao Yu an important news as soon as he entered the door, "the comparison was successful. Yun Duoer's DNA matched one of the DNA samples found in Kang Ziqing's bag!"
"Oh?" Zhao Yu took Zeng Ke's inspection report, nodded and said, "It turns out that it is the one with the least sample information."
"Yes," Zeng Ke said, "It's just a few sporadic dandruff tissue!"
"Tsk, tsk..." Zhao Yu asked hurriedly, "Can you prove that these scurf tissues were extracted from video tapes?"
"No!" Zeng Ke shook his head regretfully, "Those scurf tissue was found from the bottom of the bag, and it could come from any item in the bag!"
"Damn it!" Zhao Yu was equally depressed, "If this is the case, it means that this DNA has no effect at all!"
"Yes," Zeng Ke nodded, "This woman is not ordinary cautious. When collecting evidence, the experts even opened the video tape and checked it thoroughly, but still found nothing!"
"There are no fingerprints or skin flakes," Zhao Yu sighed, "Could it be that... this bitch also wore gloves when watching the video playback?"
"It's possible..." Zeng Ke said, "I guess she has a guilty conscience after all, so she doesn't dare to leave any information on the tape. This way, even if someone discovers it, she can deny it!"
"Well, that's why she is so arrogant and confident!" Zhao Yu pondered, "I'm starting to worry now, even if we find more victims' bones, we still won't be able to deal with her!"
"Well..." Zeng Ke said with a worried look on his face, "I already talked to Peipei, um... and forensic doctor Zhang on the phone this morning. She said that they did not extract any other effective materials from Miao Xiaowen, nor did they find any clothing. Traces of fiber attachment.
"In other words, they suspected that when burying Miao Xiaowen, the murderer took off her clothes and buried her naked in the ground!
"When the body was originally unearthed, the forensic doctor judged that it might be Miao Xiaowen's through the location of the stab wounds on the bones!"
"I know," Zhao Yu said immediately after reading the autopsy report, "the murderer should have separated the body and clothes of the deceased, so that even if the body happened to be exposed, it would not be easy to identify the body through the clothes of the deceased.
"I told Cui Lizhu a long time ago to ask them to dig again near where Miao Xiaowen's body was found!"
"Team leader, you haven't seen this yet, have you?" Zeng Ke handed over a document and said, "This is the latest inspection report Peipei sent me. The forensic doctor found the bones and the pit where the body was buried. Here, a chemical component called allyl isothiocyanate was detected!”
"Oh?" Zhao Yu was slightly surprised and asked quickly, "What is this?"
"It is a chemical preparation used to synthesize organic raw materials," Zeng Ke said. "This kind of thing has a strong pungent smell, a bit similar to mustard!"
"What? Did I hear it correctly?" Zhao Yu was even more surprised, "Mustard?"
"It just smells similar to mustard, but it has nothing to do with mustard!" Zeng Ke explained. "At first, Peipei was not sure why there was such a chemical residue on the bones. It was not until he asked Teacher Gao Facai that he finally understood. What on earth is this thing used for!”
"Oh?" Zhao Yu urged Zeng Ke with his eyes.
"Team leader," Zeng Ke said very patiently, "we have taken professional courses in the police academy. Do you still remember why it is necessary to bury a body at a depth of more than 6 meters?"
"Hmm..." Although Zhao Yu couldn't remember the content of the professional course, he could guess the answer based on his feeling, "Because it's only 6 meters or more away from professional search dogs!"
"What about two meters?" Zeng Ke asked again.
"Hmm..." At this time, Zhao Yu had already thought of the answer through his previous memories, "If it is less than two meters away, it will be smelled by wild animals, and some hungry and eager animals will dig up the corpse!
"Oh..." Zhao Yu suddenly realized and finally knew the answer, "Miao Xiaowen's body was only buried 1.5 meters deep, but it has never been discovered in 16 years..."
"Yes!" Zeng Ke nodded, "Forensic doctor Gao said that in the 1980s, there was a German detective TV series called "Drake", in which he played a killer who used allyl isothiocyanate to smear on The method on the body prevented the search by police dogs!”
"So," Zhao Yu said with wide eyes, "Yun Duo'er also learned this trick
"She was unable to dig a deep pit by herself, so in order to prevent wild animals from digging up the body, she smeared the body with chemicals with a pungent smell...
"This woman is so professional... Hmm... Wait..." Suddenly, Zhao Yu suddenly thought of something, hurriedly opened his notebook, pointed to the names of many victims and said, "Could it be... Yun Duoer's real weakness - right here!?"
(End of chapter)