Detective: On the first day in office, the serial murder case was solved

Chapter 096

.Full of faint black marks !

.” These bleached bone specimens are actually their original colors . ”

.” It should be with a touch of black . ”

.Looking at the broken part , black marks appear .

.Wang Mo spoke slowly .

.” And the highly toxic chemicals that can cause this change . ”

.” It’s potassium cyanide . ”

.” This chemical , in powder form , is extremely toxic . It only takes 50 mg to make the victim die suddenly in an extremely short period of time without having time to react . ”

.” And you , as a professor , can put it in some drinks and hand it to the victim , and they won’t suspect it at all !”

.Watch this scene .

.Su Yuan’s face was extremely pale .

.He didn’t think so .

.Wang Mo has already found out this step !

.And Wang Mo’s voice was still sounding slowly .

.” Ten years ago , when you first decided to do something with people in medical school , you should have thought about poisoning them and making them into specimens . ”

.” So after that, you start searching for the production of all kinds of highly toxic chemicals . ”

.” In the end , potassium cyanide was chosen . ”

.” Actually , after killing the first victim , you should have also noticed the changes in their bones . At that time, you could completely replace the chemicals , but you didn’t . ”

.” Because at that time, you had already mastered the production of potassium cyanide . If you change it, the cost of re-learning is too high . ”

.” Also , the bleached bones are indistinguishable from normal specimens , so you haven’t replaced the highly toxic chemicals for ten years . ”

.” And the most important thing is that you don’t think that you will be exposed , and you don’t think that the police will find out this step !”

.” In the end , it’s your arrogance that hurts yourself !”

.” I guess . ”

.” That’s right . ”

.Listen to Wang Mo’s voice .

.Su Yuan’s face was already hard to see the extreme .

.His mind was almost completely controlled by Wang Mo.

.But even at this time , he was still stubborn .

.” These colors can only prove that these bone specimens were poisoned by potassium chloride before they died . ”

.” What does it have to do with me ?”

.” You can’t be sure that these skeleton specimens belong to the missing persons in the academy ! ”

.Suddenly , Su Yuan grasped the key .

.As long as these specimens , which the police cannot prove , belong to the eleven missing persons , he still has a chance .

.And listen to the other party’s sophistry .

.Wang Mo sneered .

.” The corpse specimens of the previous ten missing persons , we really cannot prove it . ”

.” But the victim a month ago brought us a lot of information !”

.” We found that her skeletal specimens appeared two weeks after she disappeared . ”

.” The production of qualified specimens is actually a long process . After the corpse muscles and fat are processed , they must be placed in a special solution for several days or even months . ”

.” So , in the process of soaking its bones , you shortened more than half of the time !”

.” This means that there may be DNA residues in one of her skeleton specimens !”

.Wang Mo’s speech was not fast .

.But every word seemed to hit Su Yuan’s heart directly .

.” Finally , we found all the bone specimens in the academy that had no source and were poisoned by potassium chloride half a month ago , and tested them all . ”

.” The chemical solution that can soak bones is too exaggerated . Even if you shorten a lot of time , you still wash out 90% of the information . ”

.” Finally . ”

.” We found the last trace of bone marrow and DNA in one of her thigh bone specimens !”

.while talking .

.Wang Mo directly collected all the evidence from them .

.All were thrown in front of Su Yuan .

.And listen to Wang Mo’s words just now .

.Su Yuan’s face was already pale to the extreme .

.He didn’t think so .

.Because of his own laziness , he left behind such a big clue !

.To know .

.The bodies of the missing persons he killed before were basically all of them , after a strict taxidermy process , the bones were soaked for several months .

.Only this time !

.This time , he only soaked the bones for half a month and made them into specimens .

.And this time .

.It’s enough to make him fall into the abyss !

.347 However .

.Su Yuan’s psychological defense line still hasn’t completely collapsed .

.He also understands .

.Even if the police identified a specimen belonging to the last missing person , they also found out that the cause of death of this person was potassium chloride .

.can be police .

.There seems to be no clue .

.can prove .

.These potassium chloride , from myself !

.” Congratulations officer for gathering so much information . ”

.” But this potassium chloride has nothing to do with me . ” Su Yuan’s voice sounded slowly .

.see .

.Wang Mo sneered again .

.” Really ?”

.Done .

.Wang Mo opened another file and threw it in front of Su Yuan .

.” Ten years ago , not long after you entered medical school , you consulted a chemistry teacher at the time about the properties and production of potassium chloride . ”

.” Although this person has been retired for a long time now , we still got a confession from him . ”

.” And . ”

.” Before and after the disappearance of each of the missing persons , you were in the academy , applying for one chemical , and purchasing some other chemicals . ”

.” These things are the raw materials for making potassium chloride !”

.” Also , we just checked your room very closely , and we didn’t let go of every millimeter of the ground . ”

.” Finally , we found a trace of potassium chloride powder . ”

.” This thing , after all, is powder . It’s too difficult to clean up thoroughly . ”

.Following Wang Mo’s words .

.Sentence after sentence sounded .

.Su Yuan’s face was already ashen , and it was extremely pale .

.And this time .

.Listen to Wang Mo’s voice .

.In the end , he didn’t make any rebuttals and sophistry , and he couldn’t even speak for a long time .

.And after all this is said .

.Wang Mo also cast a glance at Zhao Duoming .