Previously, Han Cheng asked Hong Xi to collect hammers that were common on the market twenty years ago.
As a result, Hong Xi collected more than 20 types of hammers.
From the more than 20 styles of hammers, Han Cheng selected five styles that were more likely to be used by the hammer maniacs when committing crimes.
Then he took the five hammers and drove to Bo City with Hong Xi, Yu Shan and Lan Ru.
This time, Han Cheng asked Lan Ru to follow him to Bo City.
It's because the tragedy in which Cao Jing's family was wiped out was the only one among all the cases committed by the Hammer Madman in which all the victims' bodies were completely preserved.
Lan Ru is a forensic doctor, and Han Cheng took her there because he wanted her to see if she could find more clues from the corpse.
Here comes the problem!
Why was the body of the victim in this case alone preserved?
One person needs to be mentioned here, he is Cao Jing's father-in-law, Sun He.
Sun He was also the CEO of a pharmaceutical company in Bo City.
After his daughter and son-in-law's family were murdered, Sun He felt very angry while grieving. He hated the Hammer Maniac deeply.
He vowed to catch the hammer maniac and avenge his daughter, son-in-law and his family.
However, the police later investigated the case for a long time but still failed to catch the hammer maniac, and the 11 corpses could not remain in the morgue of the police station forever, so the police suggested that Sun He cremate the 11 corpses.
However, Sun He is a forward-looking person. He knows that science and technology will continue to develop in the future. Perhaps many years later, future science and technology will find more evidence from corpses.
And if he cremated the body, all the evidence would be gone!
Sun He is the CEO of a pharmaceutical company and knows how to preserve corpses.
So later, he decided to save all 11 corpses.
However, preserving so many corpses requires a lot of care and maintenance costs.
Fortunately, Cao Jing made a lot of money that year, so Sun He used the inheritance left by Cao Jing to build an ice house specifically to preserve the 11 corpses.
I also pay for annual maintenance out of my own pocket.
More than twenty years have passed, and Sun He is now an old man in his eighties, but he still hates the Hammer Mania.
Han Cheng admired this persistent old man very much.
In order to learn more about Cao Jing's family from Sun He, and also to get Sun He's permission to let them view the 11 corpses preserved in the ice room.
Han and Cheng visited Sun He in person.
When Han Cheng announced his name, Sun He was a little excited, "You are Han Cheng, I've finally waited for you to come!"
"Old man, do you know me?" Han Cheng was a little surprised.
Sun He nodded, "Over the years, I have often gone to the police station to inquire about the Hammer Mania. Director Li told me a few days ago that the Longguo Criminal Police Headquarters sent a great detective named Han Cheng to re-investigate the Hammer Maniac serial murder case. !”
The Bureau Li that Sun He mentioned was the chief of the Bo City Police Department.
Han Cheng had greeted Director Li before coming to Bo City.
"I asked someone specifically to inquire about you, but I didn't expect you to be the detective who solved the Nanda corpse case!"
"I know that as long as you come to Bo City, my daughter and son-in-law's case will hopefully be solved!"
"Thank you for your trust, old man. I will do my best!" Han Cheng said with firm eyes.
"I'm old, and my wife left a few years after my daughter was killed. I've been holding on to this breath all these years just waiting for you to catch that hammer-headed monster and shoot him!"
Sun He burst into tears as he spoke.
"Old man, I understand what you mean! I promise you that as long as I, Han Cheng, am still alive, I will not stop investigating this case!"
Han Cheng rarely makes such a promise to others.
But seeing Sun He, an old man in his eighties, he still did not give up on tracing the murderer.
His heart was filled with emotion, which is why he solemnly made such a promise to Sun He!
I want to use this to comfort this old man.
........
"Old man, can we go see those 11 corpses?" Han Cheng asked Sun He.
"Of course! I have preserved their corpses for so many years, just hoping that one day you can find some clues from the corpses, solve the case as soon as possible, and bring the Hammer Maniac to justice!"
........
Sun He took Han Cheng and the four of them to the ice room.
The ice room was about fifty or sixty square meters in area, and there was a row of refrigerated cabinets specially used to preserve corpses.
"Daughter, son-in-law, grandson, I'm here to see you. I also brought a great detective here. Your case will be solved soon!" Sun He murmured to himself as he touched the corpse refrigerator.
"Hong Xi, help pull the body out of the freezer!" Han Cheng said.
Hong Xi nodded in response, then walked to the corpse refrigerator and pulled out the corpses in the "big drawer" from the refrigerator like drawers.
Han Cheng and Lan Ru stepped forward to inspect the body carefully.
Forensic doctors at that time had conducted autopsy studies on these 11 corpses.
The autopsy report said,
There was basically no damage below the head of the 11 corpses.
The fatal injuries were all to the head.
At that time, the forensic doctor concluded that the murderer used a hammer-like weapon to commit the murder.
However, the forensic doctor at that time did not determine what type of hammer the murderer used when committing the crime.
Han Cheng brought the five hammers here this time just to determine which hammer the hammer maniac was most likely to use.
Han Cheng and Lan Ru examined the heads of 11 corpses and found three relatively complete marks left after being hit with a hammer.
They then compared the five hammers of different shapes and sizes with the marks on the corpse.
It turned out that there were two hammers of different sizes that were 90% consistent with the marks on the corpse.
This is a significant discovery.
This shows that the 11 victims were killed by two hammers.
But does a murderer need to use two different hammers to kill people?
It’s not very convenient to carry two hammers!
This is so unreasonable!
Could it be that there is more than one murderer? !
If this is the case, it would make sense why the Hammer Maniac could be so calm and calm when doing this case.
Who could the other murderer be?
Why was it that in other cases only the Hammer Maniac committed the crime, but in this case he had an extra helper?
This makes Han Cheng and the others puzzled!
