Feng Yan read things very quickly, finishing it in just a few minutes, and then went to look at the photos of the scene.
Xiao Guo introduced the accident to the two of them from time to time: "The accident happened on the cross-river bridge. The car the deceased was driving deviated from the route. According to the witnesses of the vehicle behind him and the video of the driving recorder, it was clear It was concluded that his car slowly deviated from the route, and then broke through the guardrail and fell into the river, so it was concluded that he was driving fatigued. Although the vehicles behind had honked their horns desperately to remind the deceased, the wind on the cross-river bridge was already very strong, and in addition There was some tire noise during high-speed driving, so the deceased probably didn't hear it. The speed of the car at that time was about 120k/hour, and it is very dangerous to doze off at this time."
Feng Yan asked while looking at the photos, "Why are the kilometers calculated so accurately?"
Xiao Guo: “That’s right, we determined the deceased’s driving speed during the accident through three aspects.
First, the car behind him, that is, the witness who witnessed his death, was driving at a speed of nearly 120 yards. According to him, he followed the deceased's car onto the highway and kept following him as soon as it got on the highway. Behind the deceased's car, he was going faster and slower, but he could never pass the deceased's car. After getting on the bridge, the car and road conditions were very good, so he turned on the cruise control and set the speed at 120 yards. His car The car and the deceased's car have always maintained a constant speed distance since they got on the bridge. Based on this, it can be judged that the deceased's car should also be traveling at the same speed at that time.
Second, we were investigating the scene together with the traffic police department. Judging from the extent of damage caused by the front of the car hitting the guardrail, the speed of the car at that time was probably that fast.
Third, and most importantly, after we salvaged the car, we invited relevant experts to conduct an inspection and found that the deceased had used the cruise control function, and the cruise speed was exactly 120 yards.
Combining these three points, it is almost certain that the deceased was using the cruise control function to set the speed of the car at 120k/hour. "
Feng Yan murmured to himself thoughtfully, "The speed of 120 yards is really fast."
Xiao Guo sighed, "Who says it's not? Oh, this guy is really right. Why don't you drive cruise control on the highway? I tend to get distracted when driving on the highway anyway. I'm quite tired when driving on the highway, and I happened to be on a bridge. If you fall asleep and fall into the Yangtze River, the survival rate is too low. If you go before or after the bridge, you might still be able to survive."
An idea flashed in Feng Yan's mind, and he asked, "I know about cruise control. Will people fall asleep easily after this function is turned on?"
Feng Yan didn't know how to drive. He knew about the function of cruise control, but he didn't know whether it was true or not because it made it easier to fall asleep.
Liu Zheng replied, "That's not necessarily true. It depends on the individual. The function of the cruise control is actually designed to drive at high speeds. If you keep the accelerator at an angle for a long time, your legs will feel numb. If you use the cruise control, Then you can free your legs.”
Xiao Guo nodded in agreement and then said, "That's what you mean, but driving on the highway itself is quite boring. It's okay to have someone around to talk to. If there is no one, you have to drive alone. The scenery along the way is Almost all are the same, and because the speed is very fast, you have to be highly concentrated. If you step on the accelerator with one leg and move fast and slow, you can still stay awake. If you turn on the cruise control, even this The only opportunity to interact with the car was gone, so it would be strange not to doze off.
But what you said is definitely correct. This matter also varies from person to person. Personally, I don’t like to use this function. It’s easy to get distracted when I use it. It’s weird that I don’t doze off when I’m too tired. . "
Feng Yan repeated Xiao Guo's words "when too tired", and then said to Liu Zheng, "If I remember correctly, I asked Cheng Fei in the morning what time Zhou Yang came back the night before the car accident. Her answer was It was around 4 o'clock, right? This can be confirmed. I don't think she would lie. She arrived home at around 4 o'clock in the morning and left the community at 8:10. Excluding the time to get up and wash up, even after the reception, she fell asleep after returning home. , all things considered, Zhou Yang only slept for a little more than 3 hours, most likely less than 3 hours. In other words, Zhou Yang drove the car in an extremely tired state the next day, and used the cruise control , which led to the accident, right?"
Liu Zheng's spectacles glowed and he said, "Do you suspect that someone deliberately asked him to go home late that night, thereby increasing the probability of him having an accident on the highway?"
Feng Yan frowned and shook his head and said, "This understanding is too far-fetched. If the murderer was hidden in the crowd at the party the night before, it was just one of the moves made by the murderer. He could not guarantee that Zhou Yang would definitely be on the highway. He fell asleep, and he happened to be crossing the bridge... that's right!"
When talking about the bridge, Feng Yan's eyes lit up and asked Xiao Guo, "Do you have a map of Yunhai City? Give me one."
Xiao Guo found a map of Yunhai City and handed it to Feng Yan. Feng Yan spread the map on the table, and Liu Zheng and Xiao Guo both came over.
"Look, Zhou Yang got on the expressway from here at 8:50. According to his company colleagues, he was going to Wanning City on a business trip that day, and Yunhai City and Wanning City are separated by a river. This is the only way to go to Wanning City. The bridge over the river is about 6 kilometers long and very wide, which creates very good road conditions. In addition, there were not many cars that day and the weather was very good. It was a sunny day, but now the weather is getting colder. I didn't sleep for a few hours at night. Driving in the sun and driving at a cruise control naturally made me sleepy easily.
Please pay attention to the road conditions on both sides of the highway except for this bridge. "
Liu Zheng said, "The highway before the bridge and the highway section that extends to Wanning City are surrounded by plains on both sides, and most of them are fields."
Feng Yan continued, "Yes, this shows that if the murderer wants to make Zhou Yang sleepy and drive tired, so that he can kill Zhou Yang, he must do it on the bridge, or activate his murder plan, and this plan The plan can be implemented automatically without the presence of the murderer.
So now the scope of the murderer's killing methods can basically be locked in some of the situations Zhou Yang encountered after walking on the bridge. These situations must have triggering conditions, and one of the conditions that must be met is time. "
Xiao Guo asked doubtfully, "Time?"
Feng Yan "Yes, it's time. What if... no, I think the murderer must have used some method to make Zhou Yang inevitably or highly likely to doze off. Then he calculated the time and walked on the bridge to death 6 It was triggered when it reached 10 kilometers, and then Zhou Yang drove his car off the bridge and died."
Xiao Guo said, "But we did an autopsy and found that there were no signs of poisoning or sleeping pills in the body of the deceased. He couldn't have been hypnotized."
When Feng Yan heard what Xiao Guo said, she suddenly turned to look at him, paused for two seconds and said, "Hypnosis~ It's interesting."
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