James parked his police car in the commercial district, munching on his burger while leisurely looking at the pedestrians around him.

At this time, a beautiful girl walked into his field of vision, this girl was plump and sexy, and very charming. It's just that her skin is a little pale, not the healthy white of Caucasians, nor the wheat-colored skin that often sunbathes, but pale, as if she is not very healthy.

James pouted, maybe this girl was sick, and she had just finished her medicine, or something.

The girl wore a cool black leather coat, which is a very popular style recently, and since the rise of the Angel Society, this leather coat with a prominent texture and heavy metal style seems to be popular again.

James glanced at the girl's plump breasts and buttocks, whistled lightly, and was about to turn his gaze, and out of the corner of his eye, he saw something familiar in the girl.

This made him stunned, a strange feeling, as if something was more familiar, but he ignored it.

James tried hard to dig into his mind, looking for the idea just now, but he still couldn't get the point, as if some inspiration had disappeared, and he couldn't grasp it anymore.

After working hard for a long time, there was still nothing to gain, and James had to give up.

A few days later, while patrolling the streets, James suddenly heard a scream coming from a nearby alley, and James immediately pulled out his gun and entered the alley to check.

Seeing that there were two figures entangled in the alley, James hurriedly raised his gun, opened the insurance, and shouted loudly at the same time.

"Police! The police! Don't move, put your hands behind your head immediately, or I'll shoot! ”

Hearing James's shout, the intertwined figures suddenly separated, and a snow-white face looked over, under the dark night, this face looked extremely pale and terrifying, and there seemed to be bright red blood flowing from the corners of the mouth.

James couldn't help but get nervous, and the gun tightened.

"Police! You immediately put your hands behind your head and hear no, otherwise I'd have shot! ”

The black shadow stared at him fiercely, turned and ran into the distance, James immediately took aim, ready to shoot, but the figure moved very fast, took a few steps left and right, and disappeared from the end of the alley.

“FUCK！ Run so fast! ”

James walked up to the figure slumped in the middle of the alley, and as he walked in, James heard a slight sob, it was a woman's voice.

"Alright, alright, you're safe. I'm a police officer, can you tell me what's going on? ”

James comforted as he lifted up the woman on the ground, a beautiful young woman, who seemed to be frightened, trembling and bursting into tears.

"Woo woo~~~"

The woman was suddenly saved, and cried even more sadly, and the woman looked up at James, and saw that it was indeed a policeman, and finally relieved herself and began to cry.

At the moment when the woman looked up, James caught a glimpse of the corner of his eye, there seemed to be blood stains on the woman's neck, and he carefully pulled away the woman's long hair hanging down, and saw that on the woman's white neck, there were two distinct snake bite wounds, and now blood was flowing outward little by little.

This wound ......

James's mind involuntarily conjured up similar wounds, the same wounds on the dead man on Downey Street, on the woman in front of him, and on ...... Right! On that fashionable woman in the business district the other day!

James took the woman back to the police station to make a record, this was an accidental injury incident, the murderer, the man who escaped, did not know the victim, it is estimated that he may have followed the victim and injured people in a secluded alley.

According to the victim's description, the murderer showed two canine teeth in one mouth, very sharp canine teeth, which were more painful when he was first bitten, but he soon felt no pain, just like a mosquito bite would inject a toxin that paralyzes the nerves.

James collects a sample of the saliva left by the killer on the victim's neck and takes it to the murder squad.

"David! Did you catch the murderer in that homicide the other day? ”

"Not yet, although we have identified the suspect, we can't determine his whereabouts at this time."

"Oh! Show me the picture of the suspect. ”

Hearing James's request, David pulled up a photo, which was a slightly chubby white man with high cheekbones, not the same person as the murderer he saw today.

"Today when I was on patrol, I encountered an injury incident, a girl was bitten on the neck, exactly like the wound of the deceased, but it is not the same as this murderer."

"Oh?" David came interested. "Show me the case file."

"Good! This is a saliva sample left by the murderer, you can help test it and see if you can find the murderer's DNA. ”

"Okay! You put this. ”

Then James brought out the information of the injury case to David, who carefully looked at the wound on the victim's neck, looked at it for a long time, and said.

"It's the same kind of wound, and this wound is the same as the wound of the dead."

"According to the victim's description, the murderer's mouth had relatively developed canine teeth, and this wound should be the bite mark of the canine teeth." James relayed the victim's description.

"Canine...... According to the transcript, the killer's canine teeth function very similarly to the mouthparts of mosquitoes, and it seems that they can inject anesthetics, inject anticoagulant substances, and suck blood through the canine teeth. ”

David hesitated, not daring to accept this inference for a while, "As far as we know, mammalian teeth are not hollow, the only exception is the snake's teeth, the snake's teeth are hollow, and after piercing the prey's epidermis, venom can be injected into the prey. ”

"Genetic variation?" James asked.

"It's hard to say, genetic mutation is hard, I prefer that it's not a real tooth, maybe it's a denture."

"And what about blood? Where did the blood of the deceased go, and in the case of injury, the blood of the victim? ”

"According to normal inference, it should have been sucked away by the murderer, maybe it was absorbed in some container, maybe it was some other way."

"But what's the use of the murderer extracting blood?" James asks a question.

"I don't know, maybe we won't know until we catch the murderer, maybe it's because the murderer has some special hobby, maybe the murderer intends to sell blood?" David thought about it, but couldn't figure it out for a moment.

"Okay, when you get the news back, when you catch the murderer, remember to notify me, and I also want to know what this murderer wants to do."

"No problem!"

James returned home full of doubts, and encountered three similar wounds in a row, all of them were snake bite scars, all of them were young and beautiful women, all of them were wounded on the neck, and the murderer was not the same person, is there something hidden in this?