Chapter 515: Cooling Period

Many people think of serial killers as pure lunatics or some kind of inhuman villain.

But this kind of statement is actually not accurate. Serial killers will not print the words of serial killers on their faces. Later studies have shown that there are some highly educated and moral people in this group, and they are even willing to fight for what they are looking for. The idealist who speaks truth.

They are handsome, well-dressed, elegantly spoken, and some of them have stable jobs and relationships. As for why they end up becoming serial killers, there are also various reasons.

The FBI defines a serial killer as murdering at least 3 people, and there is a "cooling off period" during the crime, which is different from mass killers who carry out massacres in the same place in a short period of time or crazy killers who commit murder everywhere.

And Jack the Ripper is just a textbook serial killer.

The location of his crime is fixed in the Whitechapel area, and there is a coherent behavior pattern. According to Lestrade's description, this happened in three cases within half a month, and there was an interval of ten days between the first case and the second case. , while the interval between the second and third cases was shortened to five days.

It can be seen that the speed of his killing is obviously accelerating.

Whether it's for a mission, for fun, for an ideal, or simply as a career, there's no question that they all derive a certain satisfaction from the act of killing.

It's like someone obsessed with games or big swords, except serial killers are obsessed with killing people.

After each big sword, most people have what is called sage time, and the "cooling off period" is like a serial killer's sage time.

Serial killers will let their excitement reach a peak through a murder experience, and then their emotions will gradually fall back, reminisce about the previous experience, sum up the experience, and continue to learn until the next crime.

This is also a troublesome place, because you are facing an opponent who will continue to evolve, and it can also be seen from the shortening of the cooldown period that the emotional stimulation that murder can bring to him is gradually waning, which is why he Will require more frequent crimes to be satisfied.

If Zhang Heng remembers correctly, on the third day after the first letter, two more murders occurred in the East District, but the method of committing one of them was different. Later researchers generally believe that the case was not Jack the Ripper himself. It's just that it's not clear whether it's the masterpiece of the imitator, or someone fished in troubled waters, took advantage of the chaos and killed people, and then blamed Jack the Ripper.

In short, there is not much time left for Zhang Heng. If possible, Zhang Heng does not want any more victims to appear, so the best result is to find the murderer within three days. He has accelerated a lot, and he may not have three days left, and besides that, he still needs to race against Holmes.

Zhang Heng didn't waste time. After checking the corpse in the morgue, he immediately rushed to the scene of the crime. However, the place had been cleaned up after so long, and the police collected all the suspected evidence. There are still some remaining bloodstains, but other than that, there are not many clues that can be collected, but it can be seen after running in three places, and the location chosen by the murderer is becoming more and more daring.

From the initial dark alley, to the stocking area, and then to the fence behind the apartment, the possibility of being discovered is increasing layer by layer.

Zhang Heng marked the three crime locations on the map, and then he went to visit the person who found the body first and the person who saw the victim last according to the address provided by the short police officer. These people have obviously been caught by the reporter After being harassed for a long time by the police and all kinds of idlers who were inquiring about the news, Zhang Heng became very impatient when he just said what he wanted.

But seeing the latter take out gold coins from his pockets, those people became hospitable again, repeating the words they had repeated countless times these days.

Zhang Heng has already seen this information from the report provided by the police, so this is not the focus of his attention.

Thanks to those Ripper enthusiasts in later generations, Zhang Heng already has a list of suspects. The specific names and ages may not be useful, but the corresponding occupations and motives for committing crimes are of great reference value.

For example, a retired sheriff in later generations believed that Jack the Ripper was a sailor of a German merchant ship, because the Whitechapel area was very close to the pier, and the time that the merchant ship came and left London coincided with the time when the victim was killed , so he speculated that the murderer was probably a sailor, and the reason why he disappeared mysteriously and did not commit another crime was because he went to the United States on that ship.

On the other hand, Zhang Heng can ask the sailors if there were sailors near the person who last saw the victim that night.

In addition, there are royal conspiracy theories, barber theories, midwives theories... This is the wisdom of the crowd, each theory has a corresponding entry point, but the effect after a circle is not very satisfactory, witnesses said There are all kinds of things, but there is not enough unified caliber.

Zhang Heng realized that he might have gone astray. Of course, since he had such an advantage, he had to give it a try.

I have been so busy all the way that I haven't had time to eat lunch yet, and the sun is about to set in a blink of an eye, and Zhang Heng didn't continue. He has already traveled a lot this day, and he has received all kinds of information. It's time to stop Organize your thoughts.

Zhang Heng returned to 221B Baker Street and saw that Holmes had finished his dinner and was dealing with a plate of dessert.

He still looked unhurried. When he saw Zhang Heng coming back, he raised his head and said, "How is your harvest today?"

"I don't have any idea yet, how about you?"

"I have found a very useful clue, and I am digging deeper along this clue, and the result should be available tomorrow." Holmes said with a smile, "Do you need me to share some hints with you, my dear friend from the East. "

Zhang Heng shook his head, "The one who runs early does not necessarily reach the finish line first."

"That's not bad, but those who run early will always have an advantage. I'm already choosing which opera to watch." Holmes said, seeing Zhang Heng sitting opposite him.

Mrs. Hudson brought out the rest of the dinner in the kitchen, including bacon, peas, bread, and a few pieces of fruit, and the dessert was pudding. Zhang Heng finished eating quickly, and returned with a swipe of his mouth. In the bedroom, I took out the revolver I bought three months ago, along with a kerosene lamp and a knife.

Holmes raised his eyebrows, a little surprised, "You want to go back?"

Zhang Heng hummed, "That guy may commit crimes in the near future, and even if I don't meet him, I can still inspect the environment and conditions of the previous crime spots at night." After a pause, he added, "By the way Also learn about the group of prostitutes."

"That's right," Holmes praised. "You have become more and more integrated into this city."

Thanks to the lord of hajerwawa, and winter is coming, DDJisME's reward, let me tell you what day it is today. (??ω??)??