It was almost dawn when the master and his disciple returned to the police station.
Cao Haisheng went back to the dormitory to rest because of back pain. Xie Qing took a shower and changed clothes. She was no longer sleepy, so she went to the Second Brigade.
The Second Brigade is a serious crime brigade, and it is normal for its members to stay out all night.
When Xie Qing went in, Li Ji was sitting alone in front of a large blackboard in a daze.
Hearing footsteps, he looked back and said, "Xiao Xie, can't you sleep either?"
Xie Qing pulled a chair and said, "Did you find anything?"
Li Ji shook his head and said, "No valuable clues have been found yet.
Xie Qing said "Oh" and carefully read the summary on the blackboard.
There were three cases in total.
The first case was the deceased Gu Decheng, a 65-year-old male who lived in Building 3 of Fuxing Community on the south bank of Qinghe River.
On the evening of March 12, 1995, she disappeared while strolling in Qingjiang Park. On the afternoon of March 13, her body was pulled up from the place where Qingjiang River flows into the sea.
The autopsy results showed that she drowned, with brick wounds on her head, marks of being tied up on her hands and feet, and scratches on her back and feet.
The second pile, the deceased was Yan Lifen, a 56-year-old female who lived in Longwan Village, downstream of Qingjiang River.
On the evening of June 21, 1996, she disappeared on her way back from the city. On the morning of June 22, her body was found in the lower reaches of Qingjiang River.
Her autopsy results were similar to those of Gu Decheng, but her skull injury was more serious and there were no obvious signs of drowning. It can be seen that she was already in a state of near death when she drowned.
The third case is the Huang Qi case. It was this case that made Captain Huang combine the previous two cases.
The three cases have three commonalities.
First, the murder method is essentially the same.
Second, the murderer The murder targets of the three suspects have a certain consistency - Gu Decheng, who often harassed young women in the park; Yan Lifen, who often cheated people in the city to defraud money; Huang Qi, who was a naughty boy and bullied almost all the children in the community.
Third, the deceased all lived on both sides of the Qingjiang River.
Based on this, Huang Zhenyi speculated that the murderer was active in this area, either working or living, and might have a car.
Li Ji held his chin, "Do you think the murderer has been hurt by such a person?"
"Maybe." Xie Qing asked, "Have you grasped Huang Qi's whereabouts before his death? "
Li Ji said: "I have basically mastered it..."
Huang Qi was notoriously difficult to deal with in the community. Parents with children would not let their children play with him, and older children of his age did not dare to play with him.
So, when Grandma Huang was chatting with her old friends, he was wandering around the community alone.
Around 17:40, someone saw Huang Qi at the east gate of Wangjiang Community, saying that he went down to the dam by himself.
Although it was time to get off work, most people in Wangjiang Community went through the main gate and did not go to the side gate. People who were not working would not go to the east gate to buy food or cook.
Because the body was found too late, the subjects that could be investigated were limited. Apart from that, there was no more information for the time being.
In other words, 17:40 is the last time node so far.
Xie Qing leaned back in her chair, "How did the murderer trick the child into the car? He needed a secluded place to do it. Where are the places along the Qingjiang River suitable for killing people and dumping bodies?" "
The child is fearless. Just saying you're taking him for a ride should be enough to get him on the car. "Li Ji stood up and took a map of Anhai City from his desk, clipped it on the blackboard, pointed and said, "This is the discharge outlet of the sewage treatment plant, which is usually quite quiet. These two places are high dams, and there is deep water below the dams, which is quite dangerous, and basically no one goes there. This place is less than three kilometers away from Wangjiang Community. We suspect that Huang Qi was murdered here, but Captain Huang took people there and found no valuable clues."
Xie Qing thought for a moment, "From these circumstances, it is a bit unexpected that the murderer acted cleanly and efficiently the first time, which is a bit unexpected."
Li Ji was stunned, "You mean, there may be other cases that have not been discovered? "
Xie Qing said, "I'm just guessing, and..." She looked around and made sure that Li Ji was the only one in the office. "Personally, I think the murderer might be a taxi driver. He often hangs out in this area. He is under 30 years old, drives all day, and has been married for no more than a year."
Li Ji was stunned. "Taxi driver? This is indeed possible, but why did he get married not long ago?"
Xie Qing said, "Judging from the targets of the murderer's first two crimes, he is a jealous person. It is also possible that he was bullied like this when he was a child. Now that he has grown up, he wants to enforce justice. But children are different. Even if they are naughty children, they are still children. Most people can't do it. But if the murderer is married and has children, he might be able to empathize with the children bullied by Huang Qi. "
Li Ji blinked his slender eyes, "It seems..."
There was a creaking sound of chairs behind a row of desks on the north side, and a man sat up, "It makes a lot of sense."
"Captain Huang." Xie Qing was startled and stood up quickly, "I just..."
Huang Zhenyi waved his hand, "Don't be nervous, even if it's a guess, it's also a direction of investigation."
Fortunately, fortunately.
Xie Qing breathed a sigh of relief - some old people like to show off their qualifications and experience, and don't like others to point fingers at their work. Even if they reluctantly accept it at the time, it will have a negative impact.
"Sit down." Huang Zhenyi put half of his butt on the table and wiped his face with his big hand, "I just like to listen to top students analyze problems. Do you have any other ideas, Xie? "
Xie Qing said: "There are too few clues, and I only have some immature ideas, but..." Regarding the unknown corpse, she really wanted to say something. Although it might not be useful, if it could help, the investigators could avoid a lot of detours.
Huang Zhenyi could see her hesitation, "Kid, why are you hesitating? If you have any ideas, just say it directly. Do you think I can eat you?"
Xie Qing asked: "Captain Huang, have you found the source of the unknown corpse in the development zone?"
Huang Zhenyi shook his head, "No, what do you think?"
Xie Qing said: "I went to dinner today, and heard someone say that it is more profitable to promote medical equipment. The hospital..."
"Yes!" Huang Zhenyi slapped his thigh, "I didn't check the hospital. "
...
The next day at noon, Xie Qing met Li Ji when she went to the cafeteria to get food.
Li Ji patted her shoulder heavily and said, "Xiao Xie, you have become famous in one battle!"
"Fried hairtail fish, thank you." Xie Qing asked the waiter for the last dish, "How did you become famous? Did the police station find the source of the body?"
Li Ji praised, "Great, you guessed it right."
The two found an empty table.
Li Ji said, "Now that we have found the source of the corpse, the case is almost solved."
"Not almost, it's already solved." Huang Zhenyi came over with a plate of food and sat down next to Li Ji. "The deceased was a salesperson at a medical equipment company in Hai City. He scratched the murderer's face when he resisted, and he has confessed his guilt."
Li Ji looked at Xie Qing with admiration, "Captain, why did you do that?"
"Money, what else could it be." Huang Zhenyi took a sip of wolfberry tea. "The murderer was in charge of procurement. The city hospital wanted to buy an imported equipment worth millions. The machine arrived and the balance was paid. The deceased didn't want to give so many kickbacks, and he threatened the other party's public office, so the other party decided to kill him."
"Why do you have to do this?" Li Ji sighed, "Doesn't the deceased's company know that he's missing?"
Huang Zhenyi said, "The murderer used the deceased's cell phone to send a message to his family and friends, saying that he was waiting for the balance and would be back in a few days."
Li Ji nodded, "No wonder no one has reported the case for so long."
"Hey, Lao Cao, sit here." Huang Zhenyi waved to Cao Haisheng.
Cao Haisheng held his waist and sat down opposite him, "Captain Huang, is there any progress in the case?"
Huang Zhenyi said, "We are still looking for Huang Qi's last trace of activities. The taxi side is also checking to see which taxis often operate in the Wangjiang Community."
Cao Haisheng said, "Any clues?" He had a backache and lay in the dormitory for a long time, but he didn't know the latest situation.
Huang Zhenyi smiled and said, "Old Cao, your apprentice is a good candidate for criminal investigation. Why don't you ask the director to recruit another forensic doctor and let this kid belong to our second brigade?"
Cao Haisheng's tofu fell off and twisted his waist, "Not so good, but Xie is a skilled forensic doctor."
Huang Zhenyi gave Xie Qing a thumbs up, "A top student is a top student."
The tables in the cafeteria were relatively close together, and Huang Zhenyi had a loud voice, so many colleagues looked over.
He was too much of a show-off.
Xie Qing was a little embarrassed, "Captain Huang, I'm all right in forensics, and the rest is just casual talk. It's true that I'm lucky."
"This child is quite humble."
"Top students are different. They have quick brains and think deeply."
"You're right. Luck does matter in handling cases."
"That's right. The girl has only been here for a few days. It's good enough that she can understand some forensic stuff."
...
The discussions were not loud, but they were still audible.
Huang Zhenyi's face was not very good, but he couldn't refute it, so he said apologetically: "Look at my loud voice."
Cao Haisheng smiled slightly, "Let's eat."
Xie Qing raised her eyebrows nonchalantly and changed the subject, "Today's hairtail is very fresh, Master and Captain Huang, come and try it?"
Huang Zhenyi saw that she was not unhappy at all, and smiled with relief, "It is indeed fresh, and it is well cooked, crispy on the outside and tender on the inside."
...
After lunch, Xie Qing went back to the dormitory to rest.
At about four o'clock, the pager rang - a call from the second team, asking her to go to the office for a meeting.
When there are forensic doctors participating, it is usually a case seminar.
Xie Qing did not dare to delay and rushed over immediately.