fog city detective

Four or 10 minutes before the incident, Ryan contacted the hotel's food delivery department and ordered a meal: deep-sea cod, vegetable salad, borscht, steak Wellington, Black Forest cake and a bottle of red wine.

Liang Xi took the menu and asked, "Which foods were toxins detected in?"

"Borscht." Xixi continued to explain, and played the surveillance video.

According to the surveillance, a waiter pushed a cart from the food delivery department to the employee elevator.He waited at the elevator entrance for the elevator to arrive. The elevator arrived 20 seconds later, and the waiter pushed the cart into the elevator.Elevator monitoring showed that during the period, the waiter stood upright behind the food delivery car and pushed the car out of the elevator on the 21st floor. The monitoring of the corridor on the 21st floor showed that the waiter pushed the food to the front of room 2121, knocked on the door, and then pushed the car in. One minute later, the waiter came out of room 1, half-bending towards the door, as if to say thank you or other polite words.After the door was closed, the waiter pressed the elevator, took out a few banknotes from his pocket and kissed them, put away the banknotes and entered the elevator to leave.

Liang Xi asked, "Is there any problem?"

Xixi replied: "Because there is no problem, I invite you to investigate."

Liang Xi asked: "What do you mean by showing me the monitoring?" Liang Xi was worried that because of Xixi's subjective suspicion, details were missed.

Xixi replied: "This is all food-related surveillance."

Xixi took Liang Xishi for a walk.

The catering department and pastry room are on the third floor of the hotel.The dining room and kitchen are on the second floor.The normal process is: place an order.The kitchen prepares food.Responsible for serving food in the kitchen, such as knives and forks, paper towels, dipping sauces, glasses, etc.All food will be placed on trays and covered.Since Hannah ordered more food, two trays and two covers were used.

Then the waiter put the tray with the cover into the small transport elevator, and the elevator reached the food delivery department on the third floor.The food delivery department takes out the food from the inside, puts it on the trolley, checks all the food and ingredients one by one according to the order sign, then puts on the cover, and pushes the cart out of the food delivery department.Walk 15 meters and reach the staff elevator after passing a corner.

The trouble in this case is that there is no surveillance in the kitchen, and there is no surveillance in the food delivery department. It is not known which link was passive.According to the employees' instructions, a foreman and a novice waiter are in charge of catering together, which seems to be able to supervise each other.When the food was in the delivery department, there were three employees in the delivery department, which seemed to be able to supervise each other.

The kitchen staff showed Liang Xi their workflow out of thin air.

First, the chef makes an order, and then several departments coordinate the time.For example, cod only takes 2 minutes, but steak takes 8 minutes. The chef at the side dish table must coordinate the time to ensure that all the food is cooked at the same time as possible.Then the people at the fish station, meat station, and side dish station will send the cooked food they are responsible for to the head chef. The head chef will check all the finished products. After confirming that they are qualified, they will put the finished food products on the table in front of them. Put the food in the tray and take it away.

The waiter takes the food and walks out of the kitchen door, and puts the food down at the serving counter two meters to the left of the kitchen door.Put on the delivery tray, start the ingredients, and finally put the cover on, and send it into the working elevator, which will send the food to the delivery department on the third floor.

This order is done.

There seems to be a very strange thing happening here. In order to ensure the quality of the food, the chef not only checks the rawness of the steak, but also checks the taste of the food through the taste buds.The head chef explained to Liang Xi that he had tasted the borscht himself and it was very good, so he put the borscht on the table.This shows that the suspect was poisoned when the food left the kitchen to the 21st floor.But judging from the surveillance and everyone's mutual testimony, no flaws could be found.

Ke Lante, with two beards and a gray jacket, quietly appeared in the kitchen, listening to the staff and Liang Xi's explanations and explanations.Liang Xi was concentrated. After listening to the explanation, he turned around and saw Ke Lante. He hurriedly went up to say hello. They met at John's funeral and exchanged a few pleasantries on the spot.

Ke Lante was also accompanied by an assistant. Liang Xi and Ke Lante walked to the restaurant lobby, and Seymour also arrived.When she heard Liang Xi's introduction, she sat down together and nodded to each other, as if they knew each other.Without any reservation, Liang Xi told them everything he heard and saw.However, Liang Xi did not express his thoughts.

Ke Lante said: "It sounds like there is no problem with the food."

Liang Xi said, "Yes."

Seymour asked: "Is it possible that the suspects hid the toxin in carrots or potatoes? The toxin was not destroyed in the cooking process. Hannah was not poisoned by borscht, but by eating carrots and potatoes in borscht. "

Ke Lante looked at Liang Xi, and Liang Xi was taken aback: "It's possible." It is indeed possible, but the technical content has become extremely high.First of all, you must know that Hannah will order borscht, and at the same time, you must ensure that the potatoes with toxins will be added to the borscht, and you must also ask the chef to cut the potatoes so that the toxins cannot be found.It was the peak meal time, and it was necessary to ensure that the toxin potatoes were used on Hannah.

Detectives should have brains, and Liang Xi didn't know how to answer Seymour's unrealistic brains.

Liang Xi asked, "What does Mr. Kerant think?"

Ke Lante said: "Some people lie. People always like to lie, and they lie for various reasons. I met a witness. The surveillance showed that he waited for the last bus with the suspect, borrowed fire from the suspect, chatted with each other, and got on the bus together But the witness denied that he had seen the suspect, which means that the suspicion of the suspect has been cleared. I even showed him the surveillance video of him and the suspect, but he still insisted that the person was not himself. Why? Because the witness did not want to let himself Wife knew that she could go home an hour earlier. Witnesses would rather sit at the bus stop for an hour than go home."

Ke Lante said: "Let's say it's Hannah, even if the hotel staff don't know who Hannah was poisoned by Hannah. But from the handwriting of the hotel, they know that something big has happened, and everyone will not say anything that is not good for them. What do you think?" Ke Lante looked at Liang Xi with great interest.

Liang Xi said: "There are always many staff members present. Hannah's stay in the hotel was accidental, and there was not much time for the suspect to prepare. I don't have any opinions for the time being. I need to sort out the information."

Ke Lante took the crutches and stood up: "Then let's investigate separately, keep in touch, and communicate with each other after lunch."

"Ok."

……

Liang Xi went to room 2121, which was not a presidential suite, but a luxurious business suite.There is a master bedroom and three auxiliary bedrooms for drivers, bodyguards, assistants and other staff to rest. Each auxiliary bedroom has two beds.The living room is large and separates the master bedroom from the second bedroom.Each room has a bathroom and toilet, and the living room also has a toilet with a toilet and sink.

Liang Xi asked, "How many people were in the room at that time?"

Xixi replied: "Four people, Miss Hannah, Mr. Ryan, Mr. Jeff and Mr. Jack."

Liang Xi asked, "Jack and Jeff are there?"

Xi Xi: "Yes, after Jack completed the physical examination in the hospital and took notes, he and Jeff rushed here. They arrived at the hotel room at [-]:[-] in the evening."

Liang Xi said: "Order and food arrival time."

Xixi replied: "Order at 10:[-], deliver to the guest room at [-]:[-], and the ambulance will arrive at the hotel in [-] minutes."

Liang Xi asked, "When will Jack and Jeff leave?"

Xi Xi replied: "Hannah was taken to the hospital, they followed to the hospital, and they left the hospital and went home after learning that Hannah was out of danger."

There are doubts about the details of the poisoning. Liang Xi did not know the dose of tetrodotoxin in the borscht.Oral administration of 0.5 mg of river poison is fatal, and there is basically no possibility of rescue.River poison is a thousand times more toxic than cyanide, but the incubation period of river poison is longer, as short as 10 minutes before symptoms appear, and as long as 3 hours before symptoms appear.

The murderer must bring enough, how much did Hannah eat?Among the food Hannah ordered, the borscht was quite different and unsuitable, which meant that Hannah liked borscht.

Liang Xi asked how much he had eaten, and Xixi could only answer about a quarter or a few spoonfuls.Because shortly after the incident, all the ingredients were sent to the inspection department for testing.

Xixi relayed what Ryan explained about last night: Hannah had a bad face after seeing Jack and Jeff, and the three of them were sitting on the sofa talking, the atmosphere was cold and embarrassing.Hannah didn't give Jack and his son face, and asked Ryan to help him order food, and didn't mention the father and son's dinner, and the two didn't dare to say anything.The three of them talked mainly about Jessica, and Hannah asked about Jessica's ability, personality, etc., and also asked about some sensitive topics.For example, Jack, do you support Jessica becoming the president?Jeff, what do you think?

Hannah decided to let Jessica inherit the Mercury Group, so these two people had to speak out so that there would be no troubles in the future.

At [-]:[-], Hannah was in a better mood and asked them to order by themselves. She also wanted to know more about the high-level and strategic developments of the Mercury Group.Jack and his son each ordered a steak set meal.Ryan didn't order his own food, and spent most of the time standing behind and to the left of Hannah, always on call.

At 35:2121, Hannah's food arrived. The waiter pushed the dining cart in front of Hannah, removed the cover, and introduced the food as usual.Hannah nodded and waved him away.Ryan sent the waiter to the door, tipped him and closed the door.Then Hannah ate deep-sea fish with dipping sauce, and drank soup to talk to Jack and his son.At 45:[-], Hannah began to experience symptoms of discomfort, which were very violent when they started.Ryan called emergency immediately after checking.At [-]:[-], the medical staff arrived at room [-] and preliminarily judged the poisoning.At [-]:[-], the ambulance took Hannah away, and at [-]:[-], the ambulance arrived at the hospital.

Ryan went to the hospital to stay rational. After hearing that Hannah might be poisoned, he immediately contacted the bodyguards to seal off room 2121, and asked the professionals in the bodyguards to send all the food and tableware in the dining car for inspection.After the physical evidence was sent to the inspection agency, the doctor had rescued Hannah for the river poison, and Hannah's indicators gradually stabilized.With this information, the inspection agency conducted targeted testing results: only borscht and a spoon were detected to contain river poison.

Xixi contacted Ryan about Liang Xi's problem, and Ryan contacted the testing department, then asked Hannah, and told Liang Xi: Hannah drank three or four mouthfuls of borscht as an appetizer, and then ate lighter steamed deep-sea fish.I ate half of the steak wellington and half of the black forest cake.When he finished eating, Ryan pushed the cart to the door instead of outside, hoping to take the cart with him when the waiter delivered to Jack and Jeff.

What puzzled Liang Xi was, why borscht?Just because it is a soup, is it easy to melt?

While Liang Xi was thinking, Xi Xi reminded one thing: Lila Hotel has a tradition of hiring ex-convicts.Liang Xi remembered that the Lila Hotel has a rule that they will provide a certain percentage of jobs for the disabled and non-violent ex-convicts.That said, there are likely to be sophisticated criminals in the kitchen, delivery staff, and servers.This kind of regulation is not unique to the Leela Hotel. Brands such as Wal-Mart have set up special positions.

Liang Xi entered Hannah's bedroom, bathroom, and then turned to the auxiliary bedroom, but found nothing more.Liang Xi believed that the person who dared to directly throw river poison either had a deep hatred with Hannah, was a professional team, or was a person with a criminal record.In other words, the chef who made the borscht and the head chef who claimed to have tasted the borscht were also suspect.And waiters, delivery people, each of them has a chance of being poisoned.

Chapter 356 The River Poison ([-])

At ten o'clock in the morning, Liang Xi felt that the case might be more troublesome than he thought.There are three ex-convicts in the kitchen, and the waiter in charge of catering is the girlfriend of an ex-convict.There is an ex-con in the delivery department, and the delivery server is the ex-con's brother.The chef responsible for the borscht soup has been charged with six counts, including negligent injury caused by poisoning.

At first it felt like there were no suspects, but now it feels like everyone is a suspect.The restaurant manager explained that the hotel does employ ex-criminals, but based on the experience of each branch, the possibility of ex-convicts recidivating is very low.And it is easy for them to regard the hotel as their home. At the same time, they know very well that this is one of the few companies that will provide themselves with normal jobs.Restaurant managers specifically stated that they would not hire violent ex-cons.

Not only Liang Xi, but Ke Lante and Seymour began to make fuss about the staff after getting the staff information.From the current point of view, the three people all tended to be poisoned by a staff member who had access to borscht.Due to the accident of Hannah's stay in the hotel and the rarity of tetrodotoxin, it shows that the poisoner was ordered by someone.

Three detectives worked on the subject for a day, visiting, auditing accounts, questioning individually, and learning about the background.In desperation, the three sat together to share information at dinner, and they found that no real suspect could be found.They could not find any issues with the suspect's money and accounts, or any connection between the suspect and Hannah.They were successfully led astray by the clues that the assistants focused on submitting.Liang Xi, who was mentally prepared, was not spared, and it was right to start with high suspicion.

The inspection department provided a report, and the test results showed that the poison in the borscht soup was close to 3 mg. They definitely told the three detectives that this was a high-end product, and ordinary people could not touch it at all.Under normal circumstances, only medical companies and research institutes related to medicine have high-purity river poison. The current market price of high-purity river poison is [-] US dollars per gram.

Apparently the theme of their work day today is wrong.

Could it be that Ryan, Jack and Jeff in room 2121 did it?According to the description of the three, the food delivery man brought the cart directly to Hannah and lifted the cover.Hannah drank the borscht first, then the food, and left the borscht untouched after that.

Only once did the borscht go out of sight.The waiters on the second floor deliver the food to the food delivery department on the third floor through a small elevator.Could it be that someone intercepted the elevator?Seymour first thought of this possibility, and went to check the small food delivery elevator led by his assistant.Liang Xi and Ke Lante didn't move. They knew the structure of the small elevator. They could only move on the second and third floors. It was closed on all sides. It made a lot of noise when it was started, and it was extremely difficult to inject poison while the elevator was running.

During the exchange between the two, Currant put forward a hypothesis that after Hannah was sent to the hospital, there was a vacuum in room 2121.Maybe it wasn't the borsch that poisoned Hannah, it was poison because someone added river poison during the vacuum.Liang Xi disagreed, because the corridor monitoring showed that no suspicious person went to room 2121.Ke Lante said that someone must have gone, Jack and Jeff both ordered food, and the person who delivered the food to Jack and Jeff should be the most suspicious person.

Liang Xi didn't think it was necessary to cover up and frame Borscht, but Ke Lante thought there was a special reason.Liang Xi's opinion is hackers, and some hackers used surveillance, because after a comprehensive analysis and understanding, only if the video captured by the surveillance is falsified or the statements of Hannah and others lie, the suspect can carry out the poisoning.The two had different views, but respected each other and did not argue on this issue.

Liang Xi thought for a long time after dinner, and contacted Sierra: "Hey, do you want to work overtime?"

Sierra was already in a cold sweat when she answered Liang Xi's phone call, and she was a little apprehensive when she heard that she was working overtime. She just lost a lime, and who was she after?But Sierra didn't dare not take it, what if the marble was exposed?What if Thresh is exposed?

Serra asked, "Is it legal?"

Liang Xi said: "For cases where the victim is unwilling to report to the police, all the monitoring has been bought out by my employer. It cannot be said to be legal, but it is definitely not illegal." Drug surrender is a criminal case after all, and it is a bit too much to say that it is legal.

Serra responded: "Okay, I'm free for a day or two, call me or email me if you need anything."

Liang Xi: "Thank you. I'll send you some surveillance videos. I think the videos may be tricky. Check them out for me when you have time."

"OK." Sera didn't talk much, but she was straightforward.Do it if you can, refuse if you can't, and never give in.

……

Because of the company's acquisition by Bobby, Sierra focused on the Clement Group's industry, and she also moved to live in London.The group company provided the diamond company with a small villa as a workplace. Since the diamond company had only one person, the small villa became the place where Sierra worked and lived.

When Liang hit the phone, it happened that Chris Thresh was asking Sierra to steal the information, and said to Sierra, "Help him deal with it first."

Sierra's keyboard and mouse were double-moved, and the skillful and precise technique quickly analyzed that there was no problem with the video.Serra said: "The video is fine, it is all video taken by the corresponding monitor, but the time has been tampered with. Look at the surveillance in the corridor."

The food delivery man came out of the elevator with a trolley. The elevator monitoring was empty, and it was transferred to the corridor monitoring.A delivery man pushed the cart out of the elevator and pushed it to room 2121.

Thresh asked: "Isn't the food delivery person in the elevator captured by the surveillance?"

"Maybe not." Serra said: "The elevator was also controlled. Didn't the food delivery staff send it to the 21st floor... Have you seen Mission: Impossible 4? Using a fake room number and cooperating with the elevator to realize the identity replacement." A To go to room 2121, in fact he only reached the 20th floor. The number on the 20th floor has been replaced with the 21st floor, and A actually went to room 2021. B pretends to be A and goes to room 2121.After finishing the work, A also helped B to top the bag.

Thresh looked at Sera with strange eyes: "You are Sera the hacker, you are not Liang Xi the bastard."

Sera said helplessly: "Technically speaking, this person is Shen Hai. I helped Shen Hai do similar things. A year and a half ago, Shen Hai contacted me and said that his left hand was injured, and he hoped that I could do him a favor. He explained to me He also provided me with the software he specially designed for this operation. The software is like the master console of an office building, which can control all elevators, power supplies, security systems and other networked devices.”

Thresh asked: "Are you taking jobs in private?"

Serra said, "This... I just want to test the software he wrote."

Thresh asked, "And then?"

Serra said, "That's a trap."

Shen Hai was working in New York, USA, but he did not expect that the police who had received the news had arranged a net to wait for them.A thug accomplice was arrested by the police.The accomplice exchanged the identity of a tainted witness in exchange for assisting the police in arresting Shen Hai.Since the accomplice had property, a wife and children on the surface, he could run away as a monk but could not escape the temple, so the police released the accomplice. "

This friend fully carried forward the spirit that brothers are brothers and women and children are clothes, and truthfully explained the situation to Shen Hai.So a bold plan was brewed, and Shen Hai deceived Sera to the United States, claiming that the purpose was to expose an organization that laundered money in the name of charity.And provided Sierra with the software to control the entire building.

The deep sea project went well, and the police quickly cracked Serra's location.But Shen Hai never expected that Sierra was not only a nerd girl with computer talent, but also a hacker of the orphans. At that time, she was accompanied by the all-round thug Lime who was traveling to the United States.And the team that caught Sierra was just a white-collar crime investigation unit.

The suburban house where Serra lived was set alight, effectively buying time and destroying evidence.When the police arrived, Sera and Lime had already entered the forest. They walked more than 100 kilometers, crossed half a mountain range, and turned over more than ten high mountains.During this period, they also successfully covered up their traces, so that the police could not know their specific movements.

Seven days after Serra's escape, the Deep Sea accomplices returned home to Austria from the United States.That night, someone knocked on the door, and the accomplice opened the door. The masked man raised his gun and asked, "Where is the deep sea? There is only one chance."

The accomplice said that he didn't know what he was talking about, and the masked man said: "Xingkong sends his greetings to you." He shot and killed the accomplice.The accomplice's wife ran downstairs when she heard the movement, and screamed when she saw her husband lying in a pool of blood. The masked man shot her dead and spared the ten-year-old child who followed his mother to the door.

Not long after, Sera, whose screen name is Xing Kong, received an email from Shen Hai: "You shouldn't have killed his wife."

Sela replied, "Do you need war?"

Deep Sea replied: "The dead are gone, I like peace." He didn't know Sera's identity, but Sera knew the orphan of his accomplice, so he dared not declare war.

Over the next year or so, the two had no contact.

Sera: "If I help Liang Xi, I will probably be identified by Shenhai. Only I know that Shenhai has such a set of software. Unless I am familiar with the software, even a super computer expert will find it difficult to find the problems in the video." Last time Sera guessed that there is no problem in monitoring Isa's mobile phone in the deep sea. One reason is that many hackers can monitor Isa's mobile phone, but the deep sea has simpler, faster and more effective means to monitor Isa's mobile phone.One reason is that many technical personnel of the police worked together to study Isa's mobile phone.

Thresh said: "It's not that Shen Hai doesn't want revenge, it's that he has no chance of revenge. Although you may be exposed because of this, it is also an opportunity to destroy Shen Hai. Liang Xi is a dog that is very accurate in biting people. Give me some time to think about how to use a knife to kill people." Yes, if the person hasn't been found yet, please ask Dao to help us find him.

Serra: "Does it have to be a war?"

Thresh said: "Control your own destiny, don't have a fluke mentality towards the enemy, and don't expect them to have mercy. I'm not worried that Liang Xi won't find out the information, but I'm a little worried about Liang Xi's safety. He doesn't seem to know the investigation Who is the target?"

……

The investigation on the first day made no progress, and Ryan couldn't sit still. He called Liang Xi at seven o'clock in the morning, hoping that Liang Xi could find some clues today.One reason is to get Liang Xi to get up and pee to work, and the other reason is to euphemistically tell Liang Xi that there is not much time left for Liang Xi and the others.However, Liang Xi is not an employee after all, and there is no entrustment agreement, so threats and bribes are not effective, and can only be coaxed to make Liang Xi work more.

After washing up, Liang Xi took the elevator to the underground parking lot, and saw Sierra leaning to one side in a sweater and hood.Sierra made a silent movement, took out a notebook from her pocket, and opened the first page: "The power-on status of the mobile phone may be tapped in a targeted manner." This is a hotly debated topic on the Internet, and many people have done experiments. , Some words are mentioned in daily chat, and after opening some apps, you will find that the products recommended by the app are related to the words you mention every day.

Serra turned to the second page: "Give me the phone."

Liang Xi handed the phone to Sera, and he had complete trust in Sera.Selah squatted against the pillar, skillfully placed the laptop on her lap, and connected it to the mobile phone. After a while, Selah took the notebook and wrote: "Your mobile phone has not been tapped."

Flipping the page of Sierra's notebook, he wrote: "But the location has been hacked, and the other party can check the location of your phone at any time."

Liang Xi took the notebook and pen to write: "Since there is no bugging, why can't we talk in language?"

Serra looked at the notebook, thought for a while, and pointed to the Beetle.

After getting into the car, Sierra explained: "I think there is something wrong with the video you sent me, but I couldn't find out why. So I forwarded the video to a netizen named Xing Kong. She was sure that it was caused by the deep sea. Why. Anyway, if you don’t understand, I won’t explain it.”

Liang Xi didn't think it was an insult, and said, "Check it out, who lives in room XX21." To change the civet cat to the prince, the civet cat must first be needed.The food delivery man delivered them the civet cat, which is the food ordered by the food truck and Hannah.

Sierra admired her in her heart, and jumped to this step so quickly.The suspect can change the number of floors in the floor, the suspect can change the floor displayed by the elevator, and the food delivery staff may not notice the difference between the floors.But the delivery man will not deliver the wrong room number.Because room 21 is in that location.

There are five floors with the same layout as the 21st floor, and there were residents at the time of the incident.Two of them checked in in the afternoon of the incident, shortly after Hannah booked the hotel, a man and a woman, the man named Quick, 21 years old, American.The woman is Homer, 27 years old, French.It is difficult for hackers to tamper with this part of the information, because now is the Internet age, after passengers register at the main station, the data is not only saved, but also transmitted to the server for filtering.Assuming the guest's fingerprint or face scan matches the alert signature set by the server, the server will immediately notify the police.If it does not match, it will also be stored in the server as data.

Liang Xi pointed at Quick: "Fake identity?"

Sera asked in surprise, "Why?"

Liang Xidao: "Looking at the dress of Quick in the customs photos, he should be an American college student traveling poorly in Europe during vacation. Generally speaking, it is impossible to live in a luxury hotel. You can verify whether Quick has no other expenses, such as bars, such as Fees for swimming pools and such.”

Serra said, "No."

Liang Xi said: "Let's assume that Quick is a low-key rich college student. After he stays in the hotel, he doesn't go to the hotel bar, doesn't use any hotel facilities, and doesn't even eat in the hotel. Then why does he stay in this hotel? You Check 2221's room card unlocking records, I believe that Quick is in the room most of the time."

After querying, Sierra said: "That's right."

Liang Xi said: "It should be him. But is he pretending to be Quick? If so, he himself will avoid the camera as much as possible, or use masks, sunglasses and other items to cover recognizable parts of his body."

According to the check-in time, Serra found several videos of Quick, and found that, as Liang Xi said, Quick was always wearing a mask and gloves, with his head slightly lowered, and he never raised his chest to look up.

Liang Xi still feels wrong, and this feeling is usually because his current judgment conflicts with a previous judgment.Liang Xi decided to ask Sera to assist him in sorting out the case.