"Sean, we don't know his undercover identity."

Dillon, the leader of the Organized Crime Investigation Bureau on the other end of the phone, heard Augustus's inquiry, and immediately asked his subordinates to flip through the information of the Hyena Gang, and then replied:

"We're here to show that Sean is one of the Hyena Gang leader's key henchmen, and the DEA people never told us he was undercover."

Dillon didn't care about this, they also had undercover agents in the Hyena Gang, and they didn't tell the DEA about the identities of these undercover agents.

According to the rules, the undercover person is the kind of person, and only the person in charge of him in the department knows about his existence.

Before carrying out specific operations later, they will inform the joint operations department of the identity of the undercover agent to prevent the undercover agent from being killed by mistake.

Hearing Augustus tell Sean's undercover identity, Dillon was a little puzzled and asked with a smile:

"How did you find out who Sean is? You hacked into DEA's internal network? ”

Augustus glared at Luo An, who sat obediently in his chair with an innocent face.

"Of course not!"

Adaming that there was no such thing, Augustus's voice turned serious and asked:

"This Sean is related to a vicious criminal case we are investigating, and he is most likely the murderer of the case."

Dillon on the other end of the line understood what Augustus meant, saying hello to himself before he acted, wanting to ask if the operation against Sean would interfere with them.

"So, Augustus, don't search Sean's house today to prevent disturbing the Hyenas."

Seeing his subordinate Agent Norton knock on the door and hand over the documents after entering the office, Dillon's pupils shrank, and he immediately said to Augustus in a deep voice:

"We have the Organized Crime Investigation Bureau and the DEA, and tomorrow we will jointly launch a big operation against the Hyena Gang, and your investigation team can send people to wait on the periphery tomorrow, and after the operation is completed, Sean can be handed over to you for interrogation."

Whether or not the people of the DEA would agree to this matter was selectively ignored by Dillon and Augustus.

“OK。”

Augustus nodded, smiled and agreed, and by the way, agreed with Dillon to go for a drink after work.

The phone hung up, Augustus told Luo An about the joint action with other departments tomorrow, Luo An frowned slightly, was silent for a few seconds and didn't say anything, nodded and turned around and left the team leader's office.

After telling the news to the agents of Investigation Team 5, many people relaxed.

The serial murder case is more than half completed here, and it is only necessary to prepare the key evidence and wait for Sean to take over tomorrow.

After Luo An sat back at his workstation, his face was a little grim.

Because they don't have direct evidence in their hands now, just now Luo An asked Augustus to report this matter, mainly to tell those who monitored the Hyena Gang that he was going to search Sean's house and find the key evidence that Sean had been to the edge of the lake last night.

But now things have developed to arrest Sean tomorrow and then search Sean's house.

Mona next to her also thought of this, she frowned and looked at Luo An, and asked in a low voice:

"The longer it drags on, the more likely it is that Sean will dispose of those shoes, and the lower the success rate of our later conviction of Sean, which ......"

"Don't panic."

Luo An comforted in a calm voice:

"The autopsy report hasn't come out yet, and maybe Sean's DNA will be found there. And tomorrow after the Hyena Gang is dealt with by the DEA and organized crime people, there is a good chance that we will be able to find the gray sedan that Sean drove that night. ”

“OK。”

Seeing that Luo An looked confident, Mona also calmed down.

And then......

Ryder brought back bad news.

"I'm sorry, Roan."

Ryder pushed open the door of Investigation Team No. 5, walked to Luo An's workstation with a gloomy face, and said in a deep voice:

"The autopsy report from the medical examiner has not yet come out, but I asked the other party about it, and they did not find white genetic material in the victim's body, only some dimethicone.

The victim's fingernails contained nothing other than dirt and any substance associated with the killer. ”

Dimethicone is the main component of the oil layer on the outside of the partial sleeve.

"Where's the fingerprint?"

Mona next to her frowned slightly and looked at Ryder.

"I haven't found it either."

Ryder shook his head, and the trace department carefully examined the victim's clothing, except for some substances present in the trunk of the car, and found no fingerprints and hair of the murderer.

Skin fragments, etc., may have been blistered by the pit where the body was found.

"Shit!"

Hearing Ryder's words, Mona cursed secretly, then turned to look at Roan.

Luo An touched his chin and pondered for a moment, suddenly remembered something, looked up and asked:

"Where's the clear bag I handed over to the Traces Section?"

"What's that?"

Ryder looked confused, he was not at the scene of the crime at the time, and he didn't know what Roan was talking about.

Seeing the expression on Ryder's face, Luo An also thought of this, so he hurriedly asked Ryder to return to the trace laboratory and let them inspect the transparent bag.

Ryder nodded and turned to leave again, Mona looked a little anxious, and Luo An waved his hand with a calm expression:

"Don't panic, there must be a road before the car reaches the mountain, and the boat will sink naturally when it reaches the bridge, and there will always be a way to solve the difficulties."

"What are you talking about?"

Mona was at a loss, and the native American couldn't understand the English that had been indiscriminately translated by Roan.

"It doesn't matter."

Without explanation, Luo An stood up, clapped his palms to attract the attention of the detectives, and after briefly explaining what Ryder had just said, he said with a serious expression:

"Guys, that's the way it is now, we have to find more evidence that Sean was there last night!

Now please take action, find all the things that Sean has done in the past month, try to find more useful clues, and finally come up with key evidence to crucify Sean! ”

“OK！”

"No problem!"

William and the other five technicians agreed loudly, and the crackling keyboard began to sound in the office area of Investigation Group 5.

Mona also sat on her workstation with her fingers flying, checking last night's surveillance video again.

"There's a strange situation, Roan."

A few minutes later, William called for Roan to come over, pointed to the data on the computer screen, and said:

"According to the consumption records of Sean's credit card, he bought 10 old Rapid 2003 mobile phones in a mobile phone store a week ago."

"Huh?"

Luo An was stunned when he heard this, looked down and saw William call up the appearance of the 2003 model of the Rapid brand mobile phone, his pupils shrank suddenly, and he scolded:

“Fu-k！ Sean is going to make a remote-controlled bomb! ”

"What did you say?"

"Bombs? What bomb? ”

Hearing the word bomb, the people of Investigation Team 5 raised their heads in an instant, the collapse of the building was just four years ago, and they hadn't forgotten it.

Seeing the pictures on the computer, Mona suddenly remembered something, covered her mouth and exclaimed:

"Last year, a synagogue exploded in the suburbs of New York, and the murderer was using a Rapid 2003 mobile phone!"

"That's right."

Luo An nodded, the old killer in his previous life saw the news on the news, and only then did he remember to teach himself how to make a remote-controlled bomb.

"The phone's battery doesn't have a good temperature sensor and there's no failsafe."

Seeing that everyone was looking at him, Luo An motioned for William to enlarge the style of the mobile phone on the computer screen, and then pointed to it and explained to everyone:

"Modify it so simply that if someone calls this phone for more than thirteen seconds, it will immediately detonate it.

Of course, a single mobile phone explosion is not very powerful, but as long as you attach some grenades or other explosives around the phone, and then make a call at a critical moment......"

"Shit!"

“Jesus！”

After listening to Luo An's explanation, everyone in the No. 5 investigation team saw that Sean had bought ten mobile phones, and their faces suddenly changed.