In the NYPD's conference room, Booth, Beckett, Brennan and Chen Zhong sat at the edge of the conference table, opposite Mr. Kent, the father of the two murdered children, and the lawyer who accompanied him.

"Mr. Kent, first of all, on behalf of the Department of Justice, I would like to express my deep regret over the death of your two sons," Booth asked. ”

Mr. Kent scoffed: "If I had ignored the Justice Department's offer and followed my lawyer's advice to pay $2 million, my son would be alive and well." ”

"Mr. Kent, you may have some objections to what the Department of Justice did back then, but now that we're investigating the murders of your two sons, I think if we can work better together, we'll catch the killers faster," Beckett said. ”

Chen Zhong flipped through an experimental report and said, "Mr. Kent, the gravediggers lied to you and the FBI. The gravediggers paid you the ransom for 24 hours, but we found that the air inside the canisters could only last them breathe for 12 hours. So, whether you pay the ransom or not, both of your sons will die. ”

Mr. Kent asked in surprise, "Are you sure?" ”

Brennan said to Kent: "We're pretty sure about it. So, Mr. Kent, you don't need to blame yourself for your decisions at the time, it's all the gravedigger's fault. ”

Seeing off the grieving Mr. Kent, Brennan said, "Have you noticed that gravediggers resemble God?" ”

Everyone looked at Brennan in surprise, and Brennan explained to everyone: "They all make rules, and they don't discuss with others, and he doesn't care about other people's lives and deaths, you either do what he says and sacrifice something, and if you don't do it, then you're doomed." ”

Booth made an apologetic gesture to everyone, and quickly pulled Brennan to walk outside, saying to Brennan as he walked: "Please, bones, don't say it, if you keep talking, I'm afraid that God will send thunder and kill us." ”

The others went out to continue investigating clues, and Chen Chong also returned to the laboratory to busy himself with his work.

After a period of investigation and evidence collection, Chen Zhong had recently identified the murderers who poisoned three black people, and when he was formulating a plan of action, Booth and Beckett and others walked in quickly.

Beckett played a recording on his phone: Kassel and Brennan were buried alive by me, send six million to the Cayman account below in 12 hours, otherwise they will suffocate to death, and I will tell you the exact location when I receive the money, this is the last time I contact you. ”

After listening to this, Chen Zhong asked, "The habit of gravediggers in the past was to ask for the amount that the victim's family could raise, but this time, the ransom amount is a bit much, right?" ”

Booth: "She's a best-selling author. ”

Beckett: "He's a best-selling author. ”

Chen Zhong said in surprise: "It turns out that writing is so profitable. Okay, don't worry about that now, I detected a large amount of carbon, benzene and acetaldehyde-blackened smoot residue stains on the clothes of the two twin brothers, which is the car exhaust, so it can be concluded that they were attacked in the parking lot, the parking lot outside the building is monitored, and the murderer should not have done anything there, so we will now go and check the underground parking lot of the building. ”

There were only a few lights in the underground parking lot below the building, and several cameras had long since been damaged, and everyone was searching around with flashlights in hand, hoping to find a clue.

Esposito, as if sensing something, shouted loudly, and when they heard his shout, everyone gathered at his place.

There was a long brake mark on the slightly damp ground, and a small pool of blood near the brake print.

Chen squatted in front of a bloodstain in the underground parking lot, carefully collecting blood and some tiny particles of paint.

After returning to the laboratory for laboratory verification, Chen Zhong said to Booth, Beckett and others: "The blood was left by Kassel, he should have been hit by the murderer's car, and the test results of the car paint can help you lock down several models, you can investigate the surveillance in the nearby neighborhood to find it." ”

After Booth and Beckett took the test report, they hurriedly went out to look for the surveillance footage.

Seeing that it was getting dark, Chen Chong didn't go home because he was afraid that new clues would appear, so he called and ordered a pizza, made another cup of coffee, and had dinner in the office.

At about ten o'clock in the evening, Booth called to happily inform Chen that they had found Brennan and Cassel through the camera, who had been locked in a car and buried in the earth, and were now both taken to the hospital.

Chen Zhong asked the address of the hospital and hurriedly rushed to the hospital to visit the two friends who had escaped death.

In the ward, seeing Cassel, who was still in good spirits, Chen Zhong jokingly said: "Mr. Cassel, it seems that your new book has a good material and publicity means." ”

Pointing to his broken leg from a car, Cassel said, "But the price is too great, and no one likes to be buried alive after being hit by a car." ”

Chen Zhong looked at Booth and asked, "Do you have any clues on the car?" ”

"The car was stolen, and after an initial inspection, no clues were found," Booth said regretfully. ”

Brennan held a small bottle and said, "I have an important clue here, Cassel was knocked down and inadvertently grabbed the murderer's skin, which is the residue extracted from his fingernails. ”

Cassel said with a smile: "I forgot to trim my nails these days, but I didn't expect it to be beneficial." ”

Booth smiled and said, "Tomorrow I can get the evidence back to the lab, and I can extract the DNA of the gravedigger, and this time he can't escape." ”

After a while of laughter, Booth took Brennan back to the hotel where he was temporarily staying.

Alexis and Martha want to stay and take care of Cassel, but seeing him keep wincing their eyebrows, they understand what he means.

Soon everyone went home to rest, leaving only Beckett to accompany Kassel.

Chen Zhong saw the red-haired beauty Villerett who had been in close contact with him at the nurse's station, and hurriedly walked over.

Willett, who was writing, raised her head, saw Chen Zhong in front of her, and smiled in surprise, "Dear Chen, are you coming to see me?" ”

Chen Zhong said with some embarrassment: "Sort of, when are you going to get off work?" I heard that there was a restaurant where the steak was so delicious that we went to try it. ”

Villerett looked at the watch in her hand, "There is still half an hour, I can leave work after delivering a few cases, can you wait for me?" ”

Sitting in the nurse's station, Chen was idle and bored, and opened a few documents on the computer to read them, and after looking through them for a while, he found a problem.

The terminally ill cancer patients who are hospitalized in this hospital all die in a very short period of time, which is a bit counterintuitive, because even if the cancer is terminal, some people can last for years to decades, why do patients here die so quickly.

Chen Chong, who had some doubts, carefully searched the medical records of several patients who had recently died, and found that these patients were all cared for by the same nurse... His girlfriend Villerett.