The world of American TV series: Starting with the L.A. Patrol.

"So there's another question." Jack pointed to the bodies on the ground, "Where did all the blood go?"

The total amount of blood in an adult's body is about 7%-8% of body weight, which is about 5-6 liters.

Although the bloodstains left by the two victims at the murder scene were obvious arterial splatter, the quantity alone was far from enough.

"Slant sacrifices usually require a large amount of blood, which is called a blood sacrifice. The posture of the first deceased has religious meaning, and the cigar and beer in the mouth of the second deceased can also be regarded as sacrifices."

Jack said, looking at Lopez, "Can you help investigate the local religious groups involved in black magic and witchcraft and ask if there are similar sacrificial practices.

The killer may start out by using animal sacrifices, such as the voodoo tradition of using bull heads, but human beings and blood are usually advanced behaviors.”

Lopez nodded. "I don't know much about the situation in Tijuana, but I know who to go to. Give me one night, and I should have results tomorrow."

At this time, Jubal also thought of another clue, "Did Hannah find any leaking tire tracks at the scene?"

"Yes." Hannah replied from outside the video screen, "We arrived earlier this time, and the biodiesel has not yet completely evaporated. I have taken samples and will send them back to the domestic laboratory later."

European countries that focus on so-called environmental protection and carbon emissions are the main consumers of biodiesel. Among South American countries, only Brazil, which is rich in soybeans, is promoting this expensive environmentally friendly fuel.

Of course, a large Eastern country that uses waste cooking oil, also known as gutter oil, to process biodiesel is an exception.

The poor population in Mexico accounts for more than 4% of the total population. The food problem is obviously much greater than the environmental problem. The murderer can afford the more expensive biodiesel, but he is reluctant to repair even the leaking fuel tank or oil pipe. This is a rather contradictory and suspicious point.

Jack searched around the body along the tire tracks with a flashlight, and as expected, he found a pool of oil more than 20 meters away. It seemed that the murderer had been using the same car from beginning to end.

Thinking about the battle-damaged pickup trucks and sedans running all over the streets of Mexico, he sighed with regret.

If he were in China, he could ask the CSI laboratory to analyze the tire marks, and maybe find out the model of the vehicle, and then report it to the local police based on the clues about biodiesel. Even in big cities like Los Angeles or New York, the results would be available in two or three days.

Unfortunately, we are in Mexico now, and technical methods of solving the case are almost impossible to rely on. But since the murderer may be a serial killer, the BAU's behavioral analysis theory may come in handy.

-

It was late at night when everyone returned to the hotel. Alice was still busy at the computer, and Aubrey was making coffee at the bar.

As soon as Jubal entered the room, he asked, "Have you found any connection between the two victims?"

"Not yet." Alice took the coffee handed to her by Aubrey, put it close to her nose and sniffed it, revealing a satisfied smile, and then got down to business.

"The two had almost nothing in common except that they were both American, Lee Kern was an average high school senior in San Diego, and Robert Miller was from a small town in Arizona.

He was an engineer at Mexico's BTL Petroleum Company but left the company nine months ago.

But what’s strange is that although Miller’s wife and two children live in Arizona, he has been traveling back and forth between the two borders for more than half a year.”

"Looking for a job or becoming addicted to gambling?" Jack thought of the place where Robert Miller was killed in the parking lot below the dog racing track.

Aubrey looked at Jack with a half-smile, "Probably neither. Although Robert Miller lost his job, some of the stocks and businesses he invested in brought him good returns.

Greyhound gambling seems to be just his hobby, and the amount of money bet each time is not large. "

Feeling that this guy's expression was quite malicious, Jack asked curiously, "So?"

"So we tracked down some of his bills and found that some of them were not sent to his residence in the United States, but to Navado, a small town outside Tijuana."

Aubrey handed the tablet in his hand to Jack. On it was a photo of a family of three. The husband was still Robert Miller, and his wife in her early twenties and son who was only five or six years old had typical Latino looks.

"This guy has a family in the United States and another family in Mexico?" Jack suddenly realized, then glared at the guy fiercely, and finally understood why he had a mocking expression on his face.

"Scumbag, a role model for all men, an object of scorn, unforgivable." Before someone finished muttering, a pair of car keys flew towards him.

Jiejie took Hannah's arm with disdain, "Go drive, we are going to visit this bigamist's wife in Mexico now."

-

"It's a nice town, and the surrounding environment looks no worse than in China." Clay, who was called by Jack to join him, sat in the passenger seat and observed the situation outside the car.

"It's just like those peaceful countrysides in the country." Jack nodded in agreement. "We haven't heard gunshots or sirens in a while since we left the city limits of Tijuana."

Hannah, who had been fiddling with her tablet in the back seat, showed her screen. "This is a wealthy area on the outskirts of Tijuana. It's said online that many wealthy Americans buy properties here to keep lovers."

"What a wicked rich man!" Someone echoed casually, without any awareness of his billionaire status.

The properties here look similar to those in the United States, with two-story buildings mainly made of wood, a front lawn and a small garden in the back. The four people did not rush to knock on the door, but walked around the house cautiously.

"The surrounding is safe, there is nothing unusual." Clay was still carrying the Noveske N4 assault rifle and wearing a bulletproof vest with the FBI letters printed on it. The other three were also equipped with similar equipment.

Although Tijuana is not like Juarez, where the entire city is like a battlefield at night, they also passed through several tense and dangerous neighborhoods along the way.

And considering that the person they are about to face is likely to be a hysterical Mexican housewife who is a major suspect in murder, it doesn't seem to be an excessive act to just show up at her door with a gun.

The four of them stood on both sides of the door. Jack reached out and knocked on the door, and soon there was the sound of footsteps.

The young Latina woman appeared at the open door with her young son. The smile on her face disappeared instantly when she saw the four armed men, and turned into a look of horror.

(Tsundere head tilt kill)