"Haizhou International Apartment is about 3 kilometers away from the Bailan River Bridge where Zhou Yang's body was found."
"This apartment is also one of the three buildings we judged in the morning that a fall may have occurred."
"Combined with the fact that Zhou Yang lives here, we can now basically determine that the place where the deceased fell was this building."
Ren Qiang introduced the general situation he currently has.
First of all, the identity of the deceased has been confirmed, which is very good news for solving the case.
Second, the residence of the deceased can basically be determined as the place where he fell into the river.
Now, we need to go through the deceased’s relationship network to determine whether the deceased committed suicide or was a homicide.
"What are the findings here?"
Liu Guodong shook his head: "Lu Chuan is conducting a final inspection of the clothes worn by the body. It has not been completed yet. We will return it later. I’m going to Haizhou International Apartment.”
“Okay, let’s work hard and try to determine the nature of the deceased’s death today.”
Existing exploration laboratory.
"Xiao Lu, how are you?"
After the meeting, Liu Guodong called Sun Jun, who had already conducted a detailed inspection of Zhou Yang's residence.
No special circumstances were found. The surrounding neighbors are also tenants, and most of them do not know each other.
But because Zhou Yang rented a single apartment, the sound insulation was not very good, and the surrounding residents did not notice any strange noises.
Judging from Sun Jun's investigation results, it is more likely that Zhou Yang committed suicide and jumped from the building.
"Master, I've discovered something."
Zhou Yang's clothes have been inspected, and Lu Chuan found nothing wrong.
However, Lu Chuan checked his shoes carefully again and made an experimental comparison with his own shoes for the abnormal wear marks on the heels of the two shoes.
The conclusion reached is somewhat unexpected.
"Oh? What did you find?"
Lu Chuan picked up the shoes from the corpse and put them under the spotlight.
“Here, the patterns on the soles of the deceased’s shoes have about one-third of the wear marks. This shows that the shoes are old and have been worn to this extent. They should have been worn by the deceased frequently.”< br>
“And here,” Lu Chuan flattened the shoes, focusing on the position of the heel: “There are wear marks on the outside of the heel that are similar to the forefoot.”
“This shows that the deceased was alive. He walked with a slightly splayed figure. I also contacted the forensic doctor, and the shape of the deceased’s legs basically confirmed this judgment.”
"But here, on the inside of the heel, the two shoes have irregular and fresh wear marks."
"Wait!"
Liu Guodong turned around, put on his gloves, and took over Lu Chuan Look carefully at the leather shoes mentioned.
Sure enough, there were signs of wear on the inside of the heel, and the marks were obviously darker than those on the outside, and there were uneven rough edges.
This all shows that the traces should have been left in a short period of time.
"What do you mean?"
"The normal walking marks of the deceased determine that there cannot be friction marks on the inside of the heel."
"I just did an experiment with my own shoes, Master , look.”
Liu Guodong put down his shoes and followed Lu Chuan to the side.
“Drag marks, I can leave such marks by dragging my shoes on the ground.”
The floor of the current survey laboratory is made of cement and there are no floor tiles. Liu Guodong can clearly see a string of blackened drag marks extending.
The end point is a pair of leather shoes.
Liu Guodong picked up the shoes and saw traces very similar to the inside of the heels of the deceased's leather shoes.
“Kill him?!”
Lu Chuan nodded solemnly.
"Before falling into the river, the opponent was most likely dragged along, and his shoes rubbed against the ground, leaving traces."
"The possibility of homicide is extremely high!"
This discovery is quite significant. Important, it can be said to be the turning point in determining the nature of the case. "Let's go, Xiao Lu, follow me to Team Qin's office. By the way, take your shoes."
Qin Yong's office.
"I tested it underground, and I can basically confirm that it is the trace left by dragging."
Looking at the shoes in the evidence bag, Qin Yong carefully observed the traces on the inside of the stiletto heel.
"If this mark is a drag mark, it can basically prove that Zhou Yang committed homicide rather than suicide."
The corpse cannot drag itself.
“When I went to the scene, there were drag marks on the shoes, and there must be drag marks on the ground at the scene!”
"Captain Qin, this kind of drag mark should be left on the ground with a large friction coefficient. There is no way the cement floor in Zhou Yang's room is, and it is unlikely that the floor or floor tiles will leave such drag marks."< br>
Lu Chuan added: "I think the murderer might be on the rooftop of the apartment, dragging Zhou Yang forward."
"Don't let Team Leader Sun's people go up there yet. It's possible to collect the opponent's information on the rooftop." Don't destroy the footprints."
Qin Yong nodded: "Okay, I will arrange it."
Forty minutes later.
Lu Chuan first entered the single apartment where Zhou Yang lived to investigate.
As expected, Zhou Yang's apartment was very messy.
The coffee table is piled with leftover instant noodle boxes, takeaway packages, Coke bottles and a bottle of cigarette butts.
The house looks like it hasn’t been cleaned in a long time.
Lu Chuan paid attention to the ground.
The flooring in the apartment was covered with dirt, and it was hard to tell that it had not been scrubbed for a long time.
But it was this layer of dirt that allowed Lu Chuan to clearly judge whether there were scratches.
As expected, the dirt is intact and there are no scratches.
There are no traces of stepping on the window sill, which is basically consistent with the inspection results of Sun Jun and others, ruling out the possibility that this is the scene of the crime.
“Let’s go upstairs.”
After Qin Yong made the call, Sun Jun's group blocked the rooftop of the apartment and no one went up.
Lu Chuan put on shoe covers, gloves, and transparent footrests, but did not enter the rooftop directly.
The rooftop of Haizhou International Apartment is open. From the elevator equipment room on the top floor, there is an aluminum alloy door. When you open the door, you will find the rooftop.
This door is the only way to enter the rooftop.
So, Lu Chuan first collected the fingerprints on the aluminum alloy door.
If the murderer was a little careless and didn't wear gloves, he might have left fingerprints on the door handle.
After doing this, Lu Chuan opened the door and entered the rooftop.
The rooftop is very wide, seemingly two to three hundred square meters.
The left side is the ventilation equipment area and the right side is the open space.
Lu Chuan carefully moved the transparent footrest and observed whether there were any drag marks on the cement floor on the roof.
"How is it?"
Liu Guodong asked anxiously on the intercom.
"I haven't found it yet. Master, we have a portable variable frequency spectrometer in the car. Please help me get it."
"Okay."
The entire roof of the building The ground could be seen at a glance, but Lu Chuan had just scanned twice and found no traces of dragging.
This is not scientific.
Zhou Yang called out the leather shoes on his feet. The soles were black. Based on Lu Chuan's experiments on the ground of the current survey laboratory, if he was dragging, the dark traces of rubber friction should be obvious.
However, there is nothing on the rooftop. (End of this chapter)