Gu Song looked in the direction of Qi Ruonan's finger, and sure enough, he saw a wipe-like bloodstain on the door frame. Not only that, but there were also a small amount of dripping blood on the floor of the living room, and there were obvious signs of a fight in the living room.

"We're late......" Gu Song sighed deeply, although he had long expected that Jiang Ran might encounter an accident, but seeing this situation with his own eyes, he couldn't help but be a little disappointed in his heart.

He flashed to the side to make way for the investigators, turned his head and said to Qiao Sheng: "I estimate that Jiang Ran may have been attacked and injured and taken away by the murderer, and the hope of being alive now is very slim." ”

"To live to see people, to die to see corpses." Qiao Sheng took out his mobile phone and said while dialing Zhao Hongshan's number, "I'll send someone to visit the surroundings now to see if I can find valuable clues." ”

When this happened, a thought flashed through almost everyone's minds, that is, Jiang Ran's disappearance must be related to Luo Tong, but the results of the on-site investigation were not as optimistic as they thought.

Trace examiners found two relatively fresh shoe prints in the living room. One of them is a female shoe print, which belongs to the tenant of the house, Jiang Ran. The other shoe print was left by the male suspect. The suspect wears size 42 shoes, and by measuring the step length, step angle and step width, it can be calculated that the suspect is around 40 years old, physically strong, and about 180cm tall, which does not match Luo Tong's characteristics.

According to the characteristics of the traces left at the scene, Qi Ruonan probably restored the incident:

On July 17 (a time that can only be roughly estimated based on the color of the bloodstains, as there are no bodies or eyewitness testimonies to refer to), the suspect came to the victim's home and engaged in a fierce fight.

The suspect hit the victim with a stone on the head, leaving him injured and bleeding and incapacitated to resist. The murder weapon was casually discarded by the suspect in the living room, and there was a vague bloody fingerprint on it.

After subduing the victim, the suspect did not do anything with the traces of the scene, but carried the victim on his own body (judging by the change in shoe prints) and left the rental house. On the way out, the victim's head accidentally rubbed against the door frame, leaving the wipe-like blood stain.

"This suspect basically does not have anti-investigation capabilities, and the shoe prints, fingerprints, and murder weapons are all left at the scene of the crime, which is very beneficial to us. Luo Tong is a rigorous and careful smart person, and it is absolutely impossible to make such a low-level mistake. After investigating the scene of the crime, Qi Ruonan said with certainty.

Gu Song pointed to the pile of messy clothes in the bedroom and asked, "Was that messed up by the suspect?" ”

"No, the suspect did not enter the victim's bedroom or rummage through the contents of the room. You see. Qi Ruonan said and fiddled with the victim's clothes, and a black wallet was exposed from inside. The victim's wallet and bank card were all there, and there were more than 3,000 yuan in cash inside, and the suspect's motive was definitely not to rob money. In view of the two previous cases, the killer struck the victim on the head with a stone, making him incapacitated to resist before committing the next attack. I suspect the suspect was likely trying to emulate the killer's actions. ”

"It just so happens that Jiang Ran is the suspect in those two cases, so wouldn't he become a person who treats others in the way of others?"

"Maybe that's it."

"But apart from these people in our task force, who else knows that Jiang Ran is the suspect in those two cases?"

"Luo Tong!" Qi Ruonan blurted out without thinking, and immediately realized that this answer contradicted the results of the on-site investigation. "Could it be a hired murderer? Jiang Ran used extremely cruel means to kill Luo Tong's lover Xiao Jing. Luo Tong wanted to avenge Xiaojing, but he didn't want to expose himself, so he asked someone else to do it for him. ”

"Do you think someone as cautious as Luo Tong would hire such a stupid murderer to commit the crime? He'll teach the suspect to clean up the scene. ”

"That's right......" Qi Ruonan stuck out his tongue, anxious about his IQ. But if Luo Tong hadn't hired someone to do it, who else would know Jiang Ran's identity? Could it be that Jiang Ran's disappearance has nothing to do with the serial murder case?

No, this is impossible, Qi Ruonan shook his head vigorously, and hurriedly drove this unreliable idea out of his mind.

How could it be such a coincidence, they were investigating this case, and just after some eyebrows, the suspect disappeared inexplicably, no matter how you look at it, this matter is not normal.

This is obviously done by an insider, and the only insiders are colleagues from the task force and Luo Tong, neither of whom can obviously make such a stupid mistake, who else can there be?

Qi Ruonan couldn't figure it out after thinking about it, but she knew that Gu Song would definitely find the answer.

"Actually, this case is not difficult to handle." Gu Song's words interrupted Qi Ruonan's thoughts. "I already have an idea, and the next job is nothing more than running errands and finding people. Anyway, we already have the shoe prints and fingerprints of the suspect, and as long as he doesn't run away, it will be a matter of time before he is found out. I'm just afraid ......" Gu Song paused, with a solemn expression on his face.

"Afraid of what?" Qi Ruonan asked eagerly, "Senior brother, who is the suspect?" ”

"Just check the people around Xiaojing. I think the suspect's motive for the crime should be revenge, he attacked Jiang Ran, but instead of killing her in the rental house, he took her away from the scene, probably to take the time to torture her. After all, Xiao Jing died tragically in such a way, and the families of any victim would not forgive the murderer's cruel atrocities. ”

"Xiaojing's family?" Qi Ruonan looked at Gu Song incredulously and asked, "It's impossible for them to know that Jiang Ran is the murderer of Xiao Jing." Besides, even if they knew, why didn't they hand over Jiang Ran to the police to deal with it, but risked going to jail to get their hands dirty? If it turns out that Jiang Ran is indeed the murderer of the serial murder case, she will undoubtedly be sentenced to death and executed immediately...... Eh, wait......" Speaking of this, Qi Ruonan suddenly realized something, and his face gradually turned pale.

Gu Song knew that Ruonan had thought of it, and said in a helpless tone: "Jiang Ran has just come out of the mental hospital, although her attending doctor said that her illness has been cured, but we all understand that many mental illnesses and mental illnesses cannot be cured at all. If Jiang Ran killed someone mentally out of control, let alone sentenced to death, he would not even have to bear criminal responsibility, and such a result would not be seen by any victim's family. ”

"Therefore, they can't let Jiang Ran fall into the hands of the police, that is tantamount to saving her." Qi Ruonan said sadly.