Chapter 28 third chapter

During that time, all the detectives involved in the investigation of Tracy's disappearance were in a bad mood, and Virginia kept asking about our progress.For a mother who has lost her daughter, we don't know how to comfort her, and the work of solving the problem has been stalled.Just when we were planning to start from other aspects, Agent Dion suddenly received an anonymous call.It was a woman calling, and she told Dion that a girl had been killed by her boyfriend and had stuffed her body into a freezer that was now hidden in an old car yard.Finally, the anonymous caller identified the girl who was killed, and her name was Tracy Jo Shane.

The woman who made the anonymous call, who never gave her name, said the refrigerator in which Tracy's body was stored was still hidden in the old garage that belonged to Michael and his brother Robert.After speaking, the other party hung up the phone, because we hadn't prepared in advance, so we couldn't find out which area the other party's phone number came from.However, this call is too important for us. We filed a search warrant, went to the yard, and found the refrigerator.I did an on-site inspection of the fridge and found it had been recently cleaned with bleach.Bleaching agent can destroy and inhibit the discoloration factors of food, it will make it fade or prevent food from browning (browning refers to the phenomenon that the color of food changes during processing and storage and tends to deepen).Some chemicals can also achieve the function of bleaching items through oxidation reactions. Bleaching items means removing or lightening their color.Commonly used chemical bleaches are generally divided into two categories, one is chlorine bleach and the other is oxygen bleach.

We shipped the refrigerator back to the bureau.In the lab, I slowly disassembled it completely to extract a small piece of human tissue from the freezer, with some hair follicle cells smeared on it.Regarding human tissue, some experts explain it in this way, it is a structure formed by a qualitative combination of cells with the same shape and function, or in other words, is called a tissue.Our human body has four basic tissues, which are epithelial tissue, connective tissue, muscle tissue and nervous tissue.Organs are formed by combining different tissues and performing certain functions. I tried to use the "RFLP gene structure analysis method" to analyze this piece of cell tissue, but failed.The "RFLP gene structure analysis method" is a DNA test method, which was the most accurate DNA test method at that time.

I also compared the hair in the fridge to the hair on Tracy's comb.Such a comparison between hair and hair is not forensically convincing.Still, I did the comparison.Because human hair is one of the ways for the human body to eliminate mineral elements, there are more than 40 kinds of chemical elements in hair, and more than 20 kinds of them are closely related to human health.For example, when a person's hair contains high levels of cadmium, it means that this person is a heavy smoker; if it is a child suffering from polyuria, the level of chromium in his hair is low ; People with schizophrenia, the content of cadmium and manganese in the hair is very low, while the content of aluminum and iron will be high; if we are facing malnourished children, we will find that there are Zinc content is low.Using the principle of neutron activation analysis, 14 different elements can be detected in a hair in extremely small amounts.

But, I get nothing, the hair in the fridge has nothing in common with the hair on Tracy's comb.This thread is broken again. During the investigation, Detective Dion of the Houston Police Department was the most desperate. Although the case had been handed over to the FBI, he felt guilty about Tracy's disappearance and applied to be transferred to the task force.His arrival has improved our work efficiency a lot.In the months that followed, he scoured Houston, investigating the corners where Tracy's body might be buried.You know, this is Houston, the fourth largest city in the United States. The Houston area mainly includes 6 surrounding counties, with an area of ​​8778.31 square miles and a population of about 4.22 million.The area of ​​the Houston metropolitan area is 596.11 square miles.From this, it can be seen that Agent Dion is working very hard on his investigation. We all think he is crazy. He has dug almost half of Houston.

Agent Dion drained the pond, and he also used horses and buggies.Our colleagues call him Excavator, because every time we call him, he always tells us: "I'm busy, I'm busy digging holes." is futile. We believe that Tracy will be found, but we don't know when we will find her, we will not give up, we are still working hard to find Tracy's whereabouts. One day, Agent Dion goes to the consignment store of Michael's mother, Barbara, looking for clues.There, he discovered some doubts.That is some of the women's jewelry on display at the counter, which is exactly what Tracy Joe once wore.

When Dion told me this, I couldn't believe it.So they took Tracy's jewelry and sold them at will in their own glass cases.This is immoral and shameful behavior. Regarding this, Barbara McAlister straightforwardly told the investigators who went to investigate that after Tracy moved out of their house, she took out all the jewelry left by Tracy and tried to sell them.Because Tracy had already taken part of the money when she left their house, so selling her jewelry was also to make up for the loss.These words seem to sound reasonable, but as long as you analyze and think carefully, you can feel the shame of these actions.Of course, as unkind as this act was, it didn't prove that they had murdered Tracy.We still had no other leads, so the police investigation was forced to stall.

Our Detective Dion also had to temporarily abandon the investigation of Tracy's case and turn to investigate other cases.Before the task force was disbanded, Dion arranged all the evidence in sequence and stored them together with the refrigerator in the safekeeping room of the police station.However, someone in the police department is urging Detective Dion to dispose of the refrigerator as soon as possible every year, even every day, because it has been sitting there for too long.However, Detective Dion repeatedly stressed that the case was not over, saying that he was still investigating it.He said he still needs some time to be fully responsible for Tracy's case.

Shortly thereafter, Michael Neal was arrested and imprisoned for another shooting case.His brother, Robert Neal, was also convicted of illegal doping and served time in prison.But despite their convictions, the brothers both denied having anything to do with Tracy's disappearance.We interrogated the brothers many times, but they refused to respond to Tracy's disappearance, and they showed no intention of cooperating with the police.I know that deep down in their hearts, there is a mentality of getting away with the crime. However, we have not yet obtained sufficient evidence, so the case of Tracy's disappearance has lost clues.