Chapter 1296: Survey

Taking advantage of Nizha going to make a phone call, Jiang Yuan accompanied by Zhong Renlong, searched the room again, and then went upstairs to look at the rooftop again.

There were more footprints left on the rooftop.

Criminals outside the Chinese region don't pay much attention to footprints, mainly because not many people have been caught because of this. Criminals cannot learn relevant anti-reconnaissance technology in prison university, and they don't really read books, let alone foreign information.

And when it reaches Jiang Yuan's level, he does footprint identification, which is just like doing DNA identification 20 years ago. But as long as it is a case that collects blood, semen, and hair, it is directly accessible.

Jiang Yuan looked at the footprints on the rooftop carefully, looked at the ropes and other items left on it, and then looked at Zhong Renlong, saying: "The way this rope is tied should be relatively special. Can it be traced?"

"It's the tying method of the SWAT side." Zhong Renlong responded in a low voice.

This information, they had already investigated.

Don't look at rappelling as just tying a rope and jumping down. As a tactical subject, it is actually super difficult. From equipment configuration, to rope inspection and maintenance, how to choose load-bearing brackets, and different tying methods of ropes in various situations, to the way of rappelling, and strategies for dealing with special situations, etc., ordinary active-duty military police may not be able to complete it at a high level.

For example, the Indian special forces failed to rappel during the National Day parade rehearsal, and 3 people fell.

By reason, special forces should be the top-trained troops. The National Day parade should be the best of the best. The rehearsal should be the peak state after training is completed. Thus, they can still fall, mainly because of India, but it can also show from the side that rappelling is indeed difficult, at least harder than 18 people riding a motorcycle.

The rappelling rope on the rooftop is evidence itself. Where it

Being able to select the most solid and bindable object at the scene is itself a skill.

There are those who are skilled enough to even possess the ability to temporarily modify a support structure.

Otherwise, for an 80-kilogram male, one careless move, and the force exerted by the gravitational acceleration combined with a kick from those thick legs—a person tied to a small steel bar would very easily need to replace their skull with a steel shell.

"The killer should have stayed here for a period of time." Jiang Yuan followed the footprints again, arriving at a wind-sheltered spot on the rooftop.

This was a square protrusion, about two meters high and about three meters long and wide, with something like an exhaust fan inside.

Jiang Yuan had someone take photos of the messy footprints on the ground, searched the walls carefully once more, and then said, "Call someone over to brush this wall; see if we can brush off any fibers. It would be even better if we could get sweat stains or something similar. The killer was leaning here waiting for the right time."

Zhong Renlong nodded repeatedly, then used his walkie-talkie to call the technicians up.

For ordinary small cases, police in every country don't like to use trace evidence; the cost of a single use is eight hundred to a thousand, and just brushing a few spots on a wall like this would burn through tens of thousands in funding, without even knowing if there would be any harvest. But for this case, it didn't matter; no one frowned at the expense.

If, as Jiang Yuan said, sweat stains could be found, then a direct DNA identification would basically nail the suspect. Even if only fabric fibers were found, that would be quite good; as long as they could match the killer's clothing or the like, it would count as very good indirect evidence.

Jiang Yuan finished surveying the rooftop, walked back down, and had Wang Chuanxing add information: "The killer's stride on the rooftop was relatively small; compared to his leg length, it should also have been specially trained. This is also evidence strengthening the fact that he is in a state of training..."

"You can even tell from the leg length?" Zhong Renlong had just put down the walkie-talkie and felt he had heard something incredible again.

Jiang Yuan nodded naturally: "The stride in the bedroom was normal, so the leg length could be determined; the stride on the rooftop was a specially trained stride..."

"Oh..." What could Zhong Renlong say? He just silently noted it down; next time he encountered a case that required leg length to solve, he would find Jiang Yuan.

"The killer holed up on the rooftop for a while, waited for the right time, and basically without any hesitation, directly found the most suitable position to tie the rope, and then rappelled down. Judging from the footprints on the rooftop, the killer did not perform necessary information gathering, which indicates that an accomplice provided him with information, or there is an inside man." Jiang Yuan continued to provide his judgment.

Zhong Renlong recorded it quickly, feeling the pressure of the case ease slightly.

Jiang Yuan kept coming up with clues one after another; with what was provided now, even if half of them led to no such person, the remaining ones would be extremely useful.

Nicha below also felt hope. The thing most feared in such cases is dragging it out without a resolution, followed by the fear of having no clues or results in the early stages, leading to crazy attacks from media reporters.

But in a situation like Jiang Yuan's, where he provided a large amount of clues in one breath, even if the case could not be solved immediately, he would have a significant breathing space.

At certain times, he could even receive a certain amount of praise.

Jiang Yuan finished surveying the entire scene and then returned to the forensic autopsy room with the body, where the British-style Jacob had long been waiting.

He elegantly took Jiang Yuan's coat, handed him a white lab coat, and then said happily, "The councilor's body is quite rare, isn't it? How shall we dissect it?"

"Normal procedure, but keep a bit more heart blood; make the toxicology test comprehensive." Jiang Yuan had already performed a surface examination and didn't have a strong demand for the autopsy itself.

Judging from the scene, the killer was very decisive when killing, and the contact with the victim was actually not much; it was very likely just a backhanded slash that severed the neck and ended it.

In this situation, the body wouldn't provide much direct evidence. By comparison, toxicology testing could prove the victim's situation at the time from another angle. Whether they had taken sleeping pills, whether they had used drugs, or had been poisoned, etc.

Jacob responded quickly, then led Jiang Yuan to the body, looking at the flat-lying councilor while sharpening his knife.

"Quite fat, not easy to dissect." Jacob patted the councilor's belly lightly; it was chubby, with the feeling of a fresh, large block of old tofu.

"Let's cut it open and see." Jiang Yuan took a scalpel, and a long "one" shape was drawn from the very center of the deceased's body.

However, unlike usual, the deceased's abdominal fat was too thick to reach the end at all.

Thus, someone needed to stand on the side, use their hands to pull the wobbling fat apart, then make another cut, pull the fat again, and cut again...

The councilor, who usually stuck out a big belly, had abdominal fat so thick that Jiang Yuan had to make three cuts to see the structure underneath.

Jacob also widened his eyes, grabbing the councilor's abdominal fat with his hands, making it as convenient as possible for Jiang Yuan to cut.