Cheng Xiao smiled with satisfaction, and this sentence just spoke to his heart.

There was a little more appreciation for Gu Xia, "Tell me, what do you think, why do you think so?" ”

Gu Xia raised his head and looked at the ceiling, "When the three victims were autopsied, they were all found to have been injected with A2 super strong anesthetic before the accident, I have read the information of this anesthetic, and the effect is very amazing, it is said that a small vial can put down an elephant, and there is a high risk, that is to say, if you use too much, you will hurt the brain nerves, and even die directly...... And the autopsy showed that the victim died eight hours or even ten hours later after being anesthetic? ”

Cheng Xiao listened very seriously and did not interject.

This shows that the murderer is particularly good at anesthetics, and he also knows the effect of this drug very well, and can ensure that the victim is tricked, and it is not fatal, it is necessary to use this dose very accurately, he first anesthetized the victim with anesthetic, and then carried out sexual assault, and it is possible to be imprisoned for a period of time after sexual assault...... In the end, I lost patience, cut my throat with a knife, killed the victim, and then ran away from the wilderness or Hubo, and I don't think it's a coincidence. The killer was either a doctor or anesthesiologist, or someone who had been exposed to the narcotic regularly. ”

Cheng Xiao nodded, "Very convincing, I think so too, it seems that the scope of our investigation can be narrowed down to the medical industry, so that there will be a lot less difficulties, and we will not find a needle in a haystack." ”

Gu Xia nodded and continued, "A2 is a new anesthetic that was only released worldwide in March 2018, and it was officially approved to enter the country in June 2018. ”

"I understand, after a while, I will ask people to investigate all the stocks and handlers of this anesthetic in the seven tertiary hospitals in this city."

Gu Xia nodded......

"Xiao Xia, you are so smart, I really regret not getting you earlier." Cheng Xiao was a little excited.

"Don't put a high hat on me, Team Cheng, I won't eat this set."

"Are you hungry, would you like to have a supper?"

"Forget it, I'm a little sleepy and want to go home and sleep."

"Okay, then we'll continue to investigate tomorrow morning."

"Okay."

"How long do you think it will take to catch a suspect?" Cheng Xiao couldn't help but ask.

Gu Xia tilted his head and pondered for a while.

"Three days, you should be able to arrest someone within 72 hours, provided that this person doesn't leave G City."

"He won't run, according to my past experience, this kind of serial murderer has a serious antisocial personality, once he kills one, he won't stop, I'm afraid that before we catch him, there will be innocent girls who will be victimized."

"Actually, I think we should publish this news and let everyone be careful, didn't you find a feature?"

Cheng Xiao was slightly stunned, "What?" ”

"The three victims were all between 20 and 25 years old, which shows that the killer likes young women and looks quite sweet, indicating that the murderer likes cute types of girls. At least they are good-looking, and their professions are salespeople, cashiers and nail salon owners. It shows that he likes to attack grassroots women, which is the Cinderella mentioned in the big TV series, and the three women were wearing black lace underwear on the day they were killed. ”

Cheng Xiao's cheeks flushed......

"You don't have to blush, I'm just stating the facts, this murderer is likely to have a certain hobby, he shouldn't be a random killing." Gu Xia said calmly.