The truth cannot be derived from speculation alone, so Peng Sijue used cotton swabs to sample the walls of the toilet pipe and used a blood protein kit to identify whether it contained human blood. Although the toilet was dirty, Peng Sijue was meticulous, and the last few kits showed , There is no human blood here.
"It seems that the murderer didn't throw the weapon in the toilet. Fortunately..." Chen Shi said.
"Fortunately?"
"He's going to throw it here, you have to open the box that stores excrement, stir it with a stick, think about it, it's funny!" Chen Shi couldn't help being amused.
Peng Sijue gave him a blank look, "Whether it is excrement, internal organs, or bones, to me it's just a protein composition, the difference is just a difference in composition."
"The mentality is really good."
Lin Qiupu called and told them to come over for dinner. They only have 20 minutes to eat, so you must hurry.
Chen Shi washed his hands in the sink and said, "Hurry up!"
Peng Sijue yelled at his back: "I haven't sampled yet!"
"Hurry up, don't expect to settle this case step by step."
Peng Sijue also took a sample from the blood in the washbasin, and then left with Chen Shi.
Originally, the first team was planning to give lunch to all the comrades of the second team, but Lin Qiupu wanted to exchange information while eating, so he booked a restaurant in the waiting room and asked everyone to come over.
Seeing Chen Shi coming, Lin Qiupu said: "It's 12 noon, and the plane will take off at 3 in the afternoon, so hurry up to eat."
"Then you still order this steamed vegetable? How slow is it to eat it warmly!" Chen Shi said.
Lin Qiupu glared, "Only this one can pack it. Don’t complain. You can cool off before eating. Let’s have a small meeting. I found the identity of the deceased. The deceased Deng Shirong was the manager of an insurance company in Jinan. He is also a shareholder, holding 27% of the shares. He has retired this year and is staying in his hometown in Hainan. Because the company had an important shareholder meeting, he arrived on this red-eye flight. Interpersonal relationships are complicated. It may be unclear after three days and three nights, but all the passengers on the plane did not overlap with him."
"Has anyone bought insurance from this company?" Lao Zhang asked.
"I will continue to investigate."
Lin Dongxue suggested, "Just put this in the inquiry, and ask them one by one!"
"Very good, that's it!"
Xu Xiaodong said: "I heard that the passengers are all making trouble. I told them how the police handled the case. They didn't go to them for questioning all morning, causing them to wait in the hotel."
"The case is not investigated by mouth. We must find out the status of the scene before asking, Lao Peng, where is your side?"
Peng Sijue talked about the autopsy. At this time, one of his subordinates said: "Captain, we found out that the wound of the deceased contained a lot of aluminum powder."
"Aluminum powder?" Chen Shi knocked on the bowl with his chopsticks and stood up, "Everyone, do I already know what the murder weapon is?"
Everyone turned their eyes to Chen Shi. Chen Shi took out a knife made of tin foil from his pocket, and said: "I once provided an airline meal on an airplane. It was a hamburger wrapped in tin foil. I tried it and put the tin foil. Folded into this shape, it can pierce the skin." He raised his left hand to show everyone the wound on the finger.
"Tin foil?" Lin Qiupu was a little skeptical, "How can the tin foil pierce the skin because it is so soft?"
"Did Team Lin know how to open coconuts with gum and watermelon with paper knife? As long as the speed is fast enough, soft things can penetrate the skin." Chen Shi picked up a chicken leg and placed it on the table, holding the foil knife high. Stabbed the chicken leg all at once.
Everyone exclaimed, that's why.
Peng Sijue said: "Yes, non-Newtonian fluids can maintain their original state in high-speed motion. The most typical example is wet starch, and... Can you stop using my chicken drumsticks as an example?"
"Very good, breakthrough progress!" Lin Qiupu applauded.
A hand was raised in the crowd, and Lin Qiupu said, "Xiaodong, what do you want to say."
"Uh, did you guys get something wrong? Isn't tin foil tin? Obviously aluminum powder was found in the wounds of the deceased."
"The composition of tin foil is actually aluminum."
"Tin foil is aluminum foil, but it's called tin foil in Hong Kong. Later, it was called that way."
Many people gave Xu Xiaodong a little bit of science, Xu Xiaodong was very ashamed, and smiled: "Okay, okay, I learned another precious lesson."
Lin Qiupu said: "If this is the murder weapon, it must be very convenient to deal with."
"Yes, the murderer can hold it in a ball and hide it on his body, and throw it away, maybe even..." He took a chicken leg from Peng Sijue's plate and took a bite, "Eat it!"
"Cheeky!" Peng Sijue whispered.
Chen Shi said: "Everyone should have received the air meal. You can check whose trash bag has no tin foil. Dongxue. I asked you to ask the flight attendant about it. Have you asked?"
"I asked, they said that many passengers passed by the seat of the deceased. There are too many people to remember."
"Then don't worry about it, just check the tin foil, whoever doesn't have tin foil, just ask for questions!"
Lin Qiupu had a conjecture, "What about the flight attendants themselves? They can also have access to tin foil, what if they did the case?"
"If you don't rest assured, check it yourself, and I will come to the economy class passenger!"
"Okay, I don't bet on the probability. First class and flight attendants, I'll investigate! Everyone hurry up to eat, and continue to work after dinner."
Chen Shi sat down, and Peng Sijue took the tin foil and took a look, held it into a ball, and said, "If the murderer holds the tin foil into a ball and throws it into the toilet, it is possible that a drop of blood will not leak out. It seems that I still have to check it. The protein in the plane!"
"Your statement is more disgusting, okay, can you not say it during the meal." Chen Shi continued to taste the chicken leg that just came with the lamb.
"Is it tasty?"
"It's delicious, you can try it too!"
Looking at the empty plate, Peng Sijue could only helplessly pick up a chopsticks of broccoli, and Chen Shi said, “Don’t check the stuff. Go borrow a metal detector and find the place where the passengers have been to see if there is any murderer. Throw it away."
"Also, if there are fingerprints on the tin foil, it is easy to extract."
Lin Dongxue leaned over, "Hey, did our direction go wrong? Didn't it say that DNA was found in the nails of the deceased in the morning? Why not collect everyone's DNA and compare them one by one?"
Peng Sijue shook his head, "Even if the equipment is in the bureau, even if it is not counted as one round, the time is too tight. It will take a long, long time to check all the DNA of so many people. Now only after the murderer is found, it is regarded as a conviction. evidence of."
After some people finished eating, they wiped their mouths and went to work. Chen Shi said, "I won't wait for you!"
Lin Dongxue was anxious for a while, gobbled up the rest of the meal, threw down the tableware and walked out. As a result, she stood up abruptly and suddenly became dizzy. This time the dizziness was longer and stronger.
Then her eyes went dark, and she fell to the ground...