Chapter 765 This Is Impossible!
Everyone regrouped again. This time, Aubrey went to the CSI lab to monitor the DNA test results. With his communication skills, he should be able to get familiar with Mike Taylor's people soon. Jiejie and Hannah were in a team to investigate the new suspects.
Hannah soon got the result, "According to the Northern Westchester County Housing Authority, Sigby applied for rewiring his cafe five months ago. I contacted the contractor, and a total of about 1 ton of No. 14 wire was used in the project."
"It seems that the time seems to be right." Jack said no problem, "Bring him back and ask."
Two hours later, a young man with a panicked look was invited into the interrogation room.
Hannah and Jiejie were in charge of the interrogation, while Jack and Jubal were still standing in the observation room separated from the interrogation room by a one-way glass.
Hannah motioned for the other party to sit down, and then got straight to the point, "Mr. Sigby, why do you need to rewire your cafe?"
"Why?" Kenneth Sigby was a little confused by the question. He thought of countless possibilities along the way, but he didn't expect to be asked such a question after being invited into the interrogation room.
"Because... because my shop was closed for a while before, I want to attract customers back." He explained with a little stutter.
"People usually sit in a cafe just for a smooth Wi-Fi and to charge their mobile phones. They don't care whether the coffee is really delicious."
"That makes sense." Jiejie was almost amused by his overly nervous expression. She looked at Hannah and then looked at the one-way glass behind her.
The two people behind the glass were a little disappointed. Jubal was experienced and Jack was proficient in psychology. They knew they had found the wrong person by looking at his first reaction.
Every criminal brought into the interrogation room behaved differently. Some would be angry and try to prove their innocence. Some would pretend to be innocent and their acting skills were so good that they could even deceive some old policemen. Some would choose to resist in silence.
Ordinary people's reactions are also different. Not every panicked person has a guilty conscience, and not every arrogant person who asks to see a lawyer immediately must have a problem.
Like Kenneth Sigby, although his expression was stunned, he was able to give a reasonable explanation at the first time, which usually means that he was panicked but not guilty.
The panic in his heart might be simply because he was suddenly invited to the famous FBI as a law-abiding citizen. Even if he was facing two beautiful female agents, he would inevitably feel a little uneasy.
Of course, this also needs to be considered in combination with other factors. At present, there is only one IP address that can link him to the serial murder case. Considering that he runs a cafe, Hannah and Jiejie invited him to the Federal Building in the name of assisting the investigation.
But since he is here, he is answering questions, so he must try to understand the situation as much as possible.
Hannah continued to ask, "We talked to your contractor, and they said that you asked to leave all the remaining wires after the renovation. Why is that?"
Kenneth Sigby continued to be confused, "Of course, I paid for those. The material cost is not cheap. It will always be used for repairs in the future."
In the following questioning, Kenneth Sigby said that he knew nothing about a certain website and did not know what "Incel" meant.
Under the questioning of Hannah and Jiejie, he was even willing to voluntarily hand over his computer to the FBI for inspection without a search warrant.
As expected, the IT department sent a team of technicians to check all the electronic products that can be used to access the Internet in Kenneth Sigby's cafe and home, but found no clues.
Compared to the discouragement of others, Jack comforted everyone with a smile, "So, the good news is that the suspect may be a customer of the cafe, right?"
Hannah looked frustrated, "Yes, we thought so too, so we asked the technicians to check the router. They did lock a laptop. Every time someone logged in to the website through that IP address, that computer happened to be connected to the store's Wi-Fi.
But the problem is that we can't find that computer now."
Each computer has its own unique "electronic fingerprint". The most common one is the MAC code bound to the network card. In theory, when the technician obtains the MAC code of that computer, the location of this computer will be obtained as soon as it logs in from other places.
It is also very simple to crack it. Just change a network card for the computer. The murderer may have done this.
"When was the last time that computer was connected to the Internet?" Jack stroked his chin and fell into deep thought.
"The day after we found three bodies in Central Park, the murderer must have seen the news report." Jiejie quickly followed Jack's train of thought.
"So our murderer is as cautious as ever." Jack thought about it and could only use the last trick, check the surveillance.
"There is no surveillance in the coffee shop, but it does not mean that there is no surveillance around the coffee shop. Let the technician look around to see if there is a surveillance camera facing the door of the coffee shop."
Hannah's eyes lit up, "I remember there is an ATM machine opposite the coffee shop, I will go to do it now."
The two girls cheered up again and left together. Jack patted Jubal's shoulder to comfort him. Since his former partner visited him today, this guy has been listless.
Just when he was about to say something, Aubrey rushed into the office with a rush, his eyes bigger than copper bells, "You will never guess"
He picked up a glass of water on the table, and drank it in one gulp, regardless of whose it belonged to him. He then continued, "The forensic doctor did not find any residual DNA in the body, only the lubricant of the condom.
But the CSI matched a person with the DNA on the plastic sheet fragments found at the crime scene. You will never guess who he is."
"Who is it? Don't expect to get free food and drinks from me if you keep it a secret." Jack said unhappily.
Aubrey turned his head sharply and looked at Jubal, "The Kerry McMee you asked me to check before should still be the Kerry McMee in prison!"
"That's absolutely impossible!" Jubal blurted out.
——
Early the next morning, Jack and Jubal rushed to the state prison.
Last night, everyone discussed countless possibilities, why Kerry McMee, who had been in prison for three years, had his DNA appear at the latest crime scene.
In the past, there have been cases where prisoners in prison tried to smuggle their body fluids out of the prison and then faked rape and murder scenes to confuse the public, but the uniqueness of DNA evidence has never been overturned.
Kerry McMee only has one sister alive. Although rapid testing technology may cause confusion due to the similarity of genes between direct relatives, they must at least be of the same gender.
Moreover, the CSI was able to extract enough DNA for testing from the epithelial cell tissue left on the plastic bag fragments found at the scene, which was somewhat lucky. If the body was found one day later, the remaining traces might disappear.
It is almost impossible to forge evidence in this way, and it is meaningless.
Then, excluding all the impossibilities, it seems that there is only one possibility left, that the Kerry McMee who has been imprisoned in the state prison for the past three years is not himself.