The two organized the evidence and put it back in the steward's office at the front of the train. Xiao Lou looked at the syringes and empty bottles on the table and asked thoughtfully: "Captain Yu, can we just search the passengers' backpacks? They should return them."
There will be some clues."
Yu Hanjiang thought about it carefully and said: "I remember the 3 of Hearts secret room. When the students went to the playground, we went to the classroom to search the schoolbags for evidence. This secret room should be the same. The identity of the flight attendant makes it convenient for us to search at any time."
He simply said: "Just go and try it and you will know."
Xiao Lou nodded and turned to follow Yu Hanjiang.
The two came to Room 1, and Yu Hanjiang said calmly: "At the request of the security department, we need to conduct a simple security check on your luggage. Please cooperate."
As expected, the passengers did not object and seemed to be accustomed to the flight attendants' security checks.
An old man came over and asked Xiao Lou: "Did Lao Li have a heart attack?"
Xiao Lou smiled and said: "There is no definite conclusion yet. Uncle, please give me your backpack."
The old man handed him the bag cooperatively and said, "I didn't bring anything flammable or explosive. The bag is full of food."
Xiao Lou opened it and took a look - it was indeed a big bag of food. This old man was a foodie.
He asked casually: "How many days will you stay in Moon City this time?"
The old man said: "Three days, then take a plane back. Everyone doesn't have much luggage."
Xiao Lou turned around and saw that everyone's luggage was a black backpack purchased by a travel agency. There was a luggage tag hanging on the backpack with everyone's name written on it to avoid confusion.
Yu Hanjiang checked his luggage on the grounds of "security inspection", and the other three people cooperated and took off their backpacks.
Only the old lady in bed 1a is still reading the newspaper with her head down. This old lady is over seventy years old. She has white hair, a stooped back, a face full of wrinkles, walks with a cane, and has ear problems. Everyone else is taking good care of her.
Call her "Sister Mei".
Seeing that she didn't respond, an old lady next to her gently shook her arm: "Sister Mei, the flight attendant wants to conduct a security check."
Sister Mei was stunned for a moment, raised her head and asked: "What?"
The old lady shouted in her ear very loudly: "The flight attendant wants to check the luggage!"
Sister Mei still looked confused: "What?"
Yu Hanjiang pointed at her backpack and asked her to take it off. She finally understood the gesture and stood up shakily to get the bag. The old man next to her saw that she had difficulty moving and helped her.
Yu Hanjiang opened her backpack and saw a few old clothes, some antihypertensive medicine, and a few newspapers, but nothing else.
The old man explained: "Sister Mei is old, her legs and feet are not very sharp, and her ears are not sharp. She is the oldest senior in our unit. She has been in the company's human resources department since the boss started his business. She has recruited most of us.
She is from the company. Her daughter asked her to follow us out to relax, but she was still unwilling and thought it would be troublesome to go out."
Xiao Lou and Yu Hanjiang looked at each other. Since this sister Mei is the oldest employee in the company, she must know something.
There was nothing unusual about her luggage. Yu Hanjiang planned to ask her alone later. He could write even though he could not hear. He was wearing a pair of thick reading glasses, so he should be able to read clearly, right?
There was nothing wrong with these two backpacks. Xiao Lou and Yu Hanjiang also quickly checked the remaining two backpacks separately.
Yu Hanjiang found some needles, cotton swabs, and a row of things similar to ballpoint pens in one of the backpacks. He didn't recognize it, so he showed it to Xiao Lou. After Xiao Lou looked at it carefully, he whispered in Yu Hanjiang's ear: "This is
Insulin pen.”
Yu Hanjiang looked at the name on the luggage tag of his backpack - Niu Dapeng.
He looked at the old man sitting on bed C in Room 1 and asked, "Uncle Niu, is this bag yours?"
Niu Dapeng nodded: "Yes."
Xiao Lou smiled and asked: "Uncle, do you also have diabetes?"
Niu Dapeng said: "I have had this problem for many years, and I have been relying on insulin to control it."
Yu Hanjiang then asked: "Then do you know that Li Zhemin has diabetes?"
Niu Dapeng looked calm: "I know, Lao Li and I stayed in the same hospital before."
Yu Hanjiang wrote down this old man named Niu Dapeng.
No abnormalities were found in the last bag. The two left room 1 and continued to search room 2.
Since the deceased lived in No. 2, this room needs to be investigated intensively.
The old man who changed places with the deceased and slept on the upper bunk happened to be the most obviously bald among the group. Only half of his gray hair was on his head, making him highly recognizable. This man's name was Zheng Weiguo, and Yu Hanjiang searched in his bag.
Out came the same needles, cotton swabs and insulin pens.
Yu Hanjiang asked: "How long have you had diabetes?"
Zheng Weiguo looked embarrassed: "I didn't pay attention when I was young. I often ate big fish and meat. I was diagnosed with diabetes and high blood pressure five years ago. I have been using insulin and antihypertensive drugs to control it."
In addition, Yu Hanjiang also found a deck of playing cards in the bag of an old man named Liu Yuming, who explained: "Old Li loves playing playing cards. The four of us played Upgrade last night and didn't go to bed until two o'clock in the morning."
Yu Hanjiang asked: "How do you play cards when the lights are out?"
Liu Yuming said: "I always fall in love with the toilet in the middle of the night. My eyesight is bad and I can't see clearly at night. This time when I went out, my son prepared a rechargeable lamp for me and asked me to take it with me when I wanted to go to the toilet.
Last night, Lao Li wanted to play cards, so I turned on the rechargeable light and put it on the upper bunk for lighting."
The other two people nodded: "That's right!" "Lao Li was quite happy when he was playing cards last night, but he didn't expect...sigh."
This group of old people actually turned on the charging lights and played cards until 2 o'clock in the morning, which is quite hard.
Yu Hanjiang asked him: "Did you go to the toilet at midnight last night? Did you see anything?"
Liu Yuming shook his head: "I got up once at three o'clock. Everyone was sleeping and all the doors were closed."
Yu Hanjiang asked: "Did Li Zhemin make any movement at that time?"
Liu Yuming thought about it carefully and said, "I remember that Lao Li seemed to have turned over and was still snoring softly."
In other words, Li Zhemin died after 3 a.m.
There was no other suspicious evidence in this room. The two came to Room 3 and were about to check their luggage when an old lady suddenly said angrily: "What right do you have to search my luggage? This is an invasion of privacy!"
She looked extremely excited.
This old lady's name is Shu Ping. She is 60 years old this year, but she looks like she is only 40 years old. Her skin and figure are very well maintained. The beauty-loving old lady is wearing a skirt and her shoulder-length hair is permed. She is the most popular among the group.
The youngest and most beautiful old lady.
Yu Hanjiang said calmly: "Routine safety inspection, please cooperate with me."
Xiao Lou smiled and agreed with Yu Hanjiang: "Yes, everyone else is very cooperative with the inspection. If you are worried about something private, Auntie, you can follow us to the office alone, and we will check it for you privately."
Shu's face turned pale and he hugged his bag and refused to let go.
Her weird behavior made the other three old people in the same room look sideways. Yu Hanjiang frowned and said, "If you don't cooperate, then I can only temporarily control you and wait for the guards to deal with it."
He stretched out his hand for the other party's backpack. After Shu Ping struggled for a long time, she handed the backpack to Yu Hanjiang.
Yu Hanjiang opened it and took a look. In addition to changing clothes, he once again found insulin in the secret compartment at the bottom of the backpack... However, this dose was too much, right? It was almost twice what Niu Dapeng and Zheng Weiguo had in their backpacks.
Seeing them finding these, the old lady's face suddenly became extremely ugly.
Xiao Lou smiled and asked: "Auntie, how many years have you had diabetes? Why do you bring so many medicines?"
Shu Ping grabbed the backpack and said with a sullen face: "It was diagnosed last year that my condition is more serious and I use a lot of medicine, so I bring more medicine than the average person."
The old lady next to her looked at her in surprise: "Xiaoping, you also have diabetes? Why didn't you tell us?"
Another person said: "Yeah, diabetes is not a shameful disease. Many elderly people will get it. Why are you hiding it from everyone?"
Shu Ping's face turned blue and white, and she hesitated for a long time, unable to answer.
Xiao Lou and Yu Hanjiang exchanged glances, turned and left the room.
Other passengers also cooperated with the inspection, but most of them had nothing to do with the senior group, and their luggage was full of food and clothes.
After checking the entire No. 6 carriage, the two returned to the steward's office at the front of the carriage.
The space on the high-speed train is limited, and the steward's office is only about 1.5 square meters. There is a small table and a chair. It's a bit crowded for two big men to stand inside, and their bodies are almost touching each other.
Yu Hanjiang was not used to being so close to others. Talking too close to him would cause his breath to blow on the other person's face, which was very rude.
He proactively suggested: "Professor Xiao, please sit down."
Xiao Lou was not polite and sat down on the chair so that Yu Hanjiang's space would be relatively spacious. Xiao Lou raised his head, looked at Yu Hanjiang standing beside him and asked, "What do you think, Captain Yu?"
Yu Hanjiang leaned his back on the table, his long legs crossed casually, his hands folded in front of his chest, and whispered: "Currently, there are four clear suspects. Niu Dapeng in Room 1 had stayed in the hospital with the deceased before, and the two were
A patient in the same hospital, he must be well aware of the deceased's diabetes condition."
"Zheng Weiguo in Room 2 slept with the deceased on a bunk bed and played cards together until two in the morning last night. He could easily know if other people in the room were asleep, so he could commit the crime while Li Zhemin was asleep. He is also a diabetic.
"
"Liu Yuming in Room 2 said that he often went to the toilet in the middle of the night, but it is also possible that this was just a cover-up. He got up at three in the morning and killed Li Zhemin. He pretended to go to the toilet and threw away the syringe and insulin bottle. No one would suspect it.
he."
"Then there's Shu Ping. When the luggage was searched, the old lady was a little too excited. The insulin was hidden at the bottom of the backpack, and the dose was twice that of others. She was seriously ill... It just didn't make sense."
Xiao Lou touched his chin, thoughtfully.
Yu Hanjiang asked: "What do you think?"
Xiao Lou said: "Have Captain Yu noticed that the insulin taken by several elderly people is different from the insulin we found in the trash can?"
Yu Hanjiang nodded: "The insulin they bring is something similar to a ballpoint pen, which is the insulin pen you are talking about?"
Xiao Lou's right hand rested casually on the table, his slender fingers were slightly bent, and the tip of his index finger tapped the table while he analyzed carefully: "I have a classmate who is a doctor in the Department of Endocrinology. Currently, the most commonly used method for treating diabetes is
This kind of 'insulin pen' is easy to carry, and it also eliminates the trouble of using a syringe to draw out the injection."
He paused and then said: "Insulin pens use thinner needles, which will reduce pain. There are obvious dosage marks on the pen, and the refills can be replaced at any time. When you go out, you only need to carry enough refills every day.
It will be very convenient to inject on time.”
In order for Yu Hanjiang to understand better, Xiao Lou gave an example: "This is like the difference between a 'ballpoint pen' and a 'traditional fountain pen'. For a ballpoint pen, if you run out of ink, you can just replace it with a refill and continue to use it. The refill is easy to carry. However, the fountain pen needs to be refilled.
The ink absorbs ink. It is difficult to control whether it absorbs too much or too little. It is very inconvenient to carry ink with you. Just like a traditional syringe, it is more troublesome to absorb insulin and is difficult to carry. Therefore, in clinical practice, "insulin pens" are basically used.
injection."
Yu Hanjiang, who heard a lot of professional knowledge, immediately understood: "You mean, the traditional syringes and injections found in the trash can do not belong to Li Zhemin?"
Xiao Lou nodded: "That's right. Li Zhemin is so rich, and his insulin pen is very convenient to carry and use. It makes no sense that other old men and women know how to use insulin pens, and he also uses the most backward syringes to inject himself."
Xiao Lou picked up the ballpoint pen and quickly wrote a formula on the notebook, saying: "There is another question. I just thought about it carefully. The dosage of insulin can be estimated according to this formula. Aunt Shu Ping is very thin, weighing at most 50 kilograms.
, calculated that the daily dosage of insulin is about 20u, and the amount of insulin in her bag is enough for her to use for a month."
Yu Hanjiang lowered his head and glanced at the calculation formula——
Xiao Lou's handwriting is timeless and correct. It's thanks to him that he can remember such a long formula.
Yu Han lowered his head and thought for a moment, then speculated: "According to your analysis, the injections and syringes in the trash can do not belong to Li Zhemin, because the equipment used by Li Zhemin to treat diabetes must be a higher-end 'insulin pen' rather than a traditional plastic one."
Syringe. However, we did not find insulin in Li Zhemin's bag. Instead, Shu Ping found more than the normal dose of insulin in Shu Ping's bag. Therefore, it is very possible that Shu Ping stole all of Li Zhemin's insulin?
!”
Captain Yu's logic was perfect and he understood Xiao Lou's meaning instantly.
Xiao Lou nodded appreciatively and said: "I asked tour guide Xiao Qin that their senior group has a total of ten days from departure to return. The return journey is by plane directly. Aunt Shu Ping brings a month's supply of insulin refills. It is not necessary at all.
."
A 10-day trip, with a 30-day dose - that's a dose for two people.
It seems that Lao Li has offended many people, and this Shu Ping actually stole all his insulin!
Yu Hanjiang sorted out his thoughts and said: "Shu Ping looked ugly just now and didn't want us to check her bag because she stole Lao Li's insulin and was afraid that we would find out - this woman has a big problem."
Xiao Lou followed closely: "However, the murderer who used a traditional syringe and insulin bottle to give Lao Li almost 300u of insulin at one time was not necessarily Aunt Shu Ping. Otherwise, there was no need for her to go to all the trouble to steal Lao Li.
of insulin refills.”
Yu Hanjiang agreed: "It seems that the investigation needs to continue. This senior group is really not simple."
At this moment, tour guide Qin Shiyue came over with a stack of information.
After psychological adjustment, the girl's complexion improved a lot. She knocked on the door of the flight attendant's office, handed the information to Xiao Lou, and said: "Our travel agency has relatively high requirements for the registration of senior citizens. The registration form must be filled in in detail. Here are 12 people
Passengers’ registration forms, including their family information and past medical history, are all recorded.”
Xiao Lou nodded towards her: "Thank you."
Qin Shiyue was silent for a moment and then said softly: "If it is really murder, the murderer must be found!"
"Don't worry." Xiao Lou was concentrating on reading the information, and Yu Hanjiang said calmly: "Xiao Qin, let me ask you a few questions. How long have you taken these 12 people with you? Which ones have a better relationship with Li Zhemin?"
Qin Shiyue frowned and thought for a while, then said: "I took them to play in Sun City for three days. Lao Li is very popular in the group, and most people like to flatter him. His son is very rich. Before
In Sun City, he invited us all to a high-end restaurant for a seafood feast, costing hundreds of thousands in one meal. He was also very loyal, and he would help anyone who asked for help from him."
Yu Hanjiang said: "He has never had a dispute with anyone?"
Qin Shiyue shook his head: "In the past few days when I took them, everyone got along very happily. They talked and laughed along the way. Nothing seemed out of the ordinary. Last night, Lao Li invited everyone to the dining car for dinner."
Yu Hanjiang asked: "No one hates him? For example, showing disgust in private?"
"Well..." She scratched her head and thought for a while, then said, "It's obvious that Uncle Niu hates him. He never talks to him, doesn't sit at the same table for meals, and when we meet, it's like we don't know each other. And there's Aunt Shu Ping.
, I always roll my eyes in private, I saw many times, Aunt Shu sneered when Lao Li praised his son."
Yu Hanjiang then asked: "Are the three in Room 2 the best with Lao Li?"
Qin Shiyue nodded: "When I bought the tickets, they were not seated together. Lao Li said that he wanted to play cards with my brothers, so he came to me specially and spent money to change the seats at the ticket office and put the four of them together.
The beds will be changed in the same room.”
This is consistent with the findings in Room 2. The four old men did play cards until two o'clock last night.
Xiao Lou suddenly raised his head from the pile of information and asked additionally: "Did Lao Li sleep like a child?"
Qin Shiyue said: "Yes, everyone said that he is generous. His son is so rich and filial to him. He has several apartments in the house. He has nothing to worry about, so he sleeps very soundly and can't wake up even if there is thunder."
After all, the tour guide had only been in contact with this group of people for a short time and did not know much information. After Yu Hanjiang roughly understood the situation, he let her go back and told her: "Please, go and call Shu Ping over."
Qin Shiyue turned around and went to room 3 to call Shu Ping.
The youngest and most beautiful old lady in the group, who usually always looks proud, turned pale at this time.
She took a deep breath, pretended to be calm and walked to the door of the flight attendant's office, where she saw two people standing and sitting inside.
The handsome guy sitting there has handsome eyebrows and a gentle expression, and he looks easy to get along with.
But the man who was standing had a sharp gaze like ice. Shu Ping was so frightened by his cold gaze that her legs trembled. She was wearing very thin high heels and almost sprained her ankle. She hurriedly held on to the door handle next to her.
, and then stabilized the body.
Yu Hanjiang said calmly: "Tell me, why did you steal Li Zhemin's insulin?"
Shu Ping: “…………”
The author has something to say:
Team Yu is good at hitting straight balls. Aunt Shu said: I'm scared to death!
The story gradually becomes clear. In front of the criminal police and forensic doctors, all the means of committing crimes are paper tigers.