From the beginning to the end, the killers in the Baiyin serial murder case in Gansu are full of evil. What happened afterwards?

Gao was born in Yuzhong County, Gansu Province, on June 2000 1964. 1From May 1988 to February 2002, it was suspected of committing 1 1 a rape and murder case in Baiyin and Baotou, Inner Mongolia, killing 65,438+.

On August 26th, 20 16, Gao was arrested by the public security organs and confessed to his criminal facts. On the morning of March 30, 2065438, around 10, the Intermediate People's Court of Baiyin City, Gansu Province pronounced the "Silver Serial Murder Case" in the first instance. The defendant was convicted of intentional homicide, rape, robbery and insulting the corpse, and was sentenced to death. 2019 65438+/kloc-0 was executed on October 3rd.

1988 at 5 pm on may 26th, Bai, a 23-year-old female worker in Baiyin, Gansu province, was killed at her home in Yongfeng Street, Baiyin District. The victim's "neck was cut, her coat was pushed to her chest, her lower body was naked, and her upper body was cut at 26 places ..."

The modus operandi is extremely cruel and outrageous. Although the crime scene left many traces, including the murderer's fingerprints, in the following six years, the public security department found nothing.

Six years after Bai was killed, a similar modus operandi reappeared:1On July 27th, 994, Shi Xiaojing, a female worker of 0/9 years old in the canteen of Baiyin Power Supply Bureau, died in the dormitory of the Power Supply Bureau, and her neck was cut by a thin blade, with 43 sharp injuries on her upper body and back ... This is the same modus operandi and the same fingerprint.

The silver serial rape and murder task force was also set up.

In the following years, the task force investigated the murderer, but found nothing. Until four years later 1998, the murderer committed four more crimes:

1998 65438+1October 16 At 4 o'clock in the afternoon, residents found that Yang, a 29-year-old woman from Shengli Street in Baiyin District, was killed at home. The victim was naked and had a 16 knife wound on his upper body. 65438+1October 19 At 5: 45 pm, a 27-year-old female Deng who lives in Shuichuan Road, Baiyin District was killed at home. The victim's shirt was pushed to his chest, his trousers were stripped to his knees, and he had eight stab wounds on his upper body. On July 30th, an 8-year-old girl Yao was killed at home in Room 4 14, 4th floor, Metrology Institute of Baiyin Power Supply Bureau. The distance from the incident to Shi Xiaojing's dormitory is less than 50 meters. 1At about11in the early morning of October 30, Cui Mou, a young woman from Baiyin Company, was killed at her home in Dongshan Road, Baiyin District. The victim had 22 stab wounds on his upper body, his lower body was bare, and his breasts, hands and genitals were missing.

The murderer singled out young women, and his methods of committing crimes were cruel and extremely concealed, which also caused great social panic.

After 1998, Baiyin Public Security Bureau began to collect fingerprints and DNA on a large scale. The police spread Skynet from the permanent population of Baiyin City to Wuchuan, 25 kilometers north of the city, and then to Jingyuan, Jingtai and Yuzhong on the south bank of the Yellow River.

However, due to the backward technology at that time, DNA could only store blood samples and test blood types. Taking fingerprints is far from being as simple as imagined, and even comparing fingerprints depends on the criminal police holding a magnifying glass.

In the next few years, the police screened hundreds of thousands of men in Baiyin, which is extremely rare in the history of criminal investigation in China.

However, in 2000, 200 1, and 2002, the murderer was still wandering in silver and randomly entered the house in the streets, and a series of shocking tragedies broke out:

On June 20, 2000, 28-year-old Luo was killed in the family hospital of the cotton mill. 2001At 9: 00 am on May 22nd, a 28-year-old female nurse surnamed Zhang was killed at home in Shuichuan Road, Baiyin District. On February 9, 2002 1, a 25-year-old woman Zhu was killed in the guest room of Taolechun Hotel in Baiyin District. ...

From the details of these cases published by the police, it is not difficult to see the ferocity and abnormality of the murderer. In order to trace the murderer, the police spared no effort. The police have outlined the basic characteristics of the suspect: male, height 170- 176 cm, medium build, sexual perversion and dual personality.

In order to solve the case, the police collected more than ten thousand pieces of fingerprint information from 1998 to 2004. In August of 20001year, this case was listed as a supervised case by the Ministry of Public Security.

In 2004, Baiyin police announced the details of the case to the outside world and offered a reward of 200,000 RMB, hoping to get clues.

In August 2004, the Ministry of Public Security organized experts to discuss the case, and combined with the cases in Baiyin and Baotou, it was identified as the "8.05" series of rape, murder and mutilation of women in Kan Moun, but no substantive breakthrough was made in the case.

From 2065438 to March 2005, Gansu police decided to restart the investigation and carry out in-depth investigation around fingerprints and DNA. After that, through Y-STR detection, the criminal suspect was initially determined, and after fingerprint comparison and DNA comparison, the criminal suspect was finally determined to be high.

On August 26th, 20 16, the police arrested Gao in a canteen of Baiyin Industrial School, 28 years after his first crime. All this stems from the fact that a cousin of Gao was suspected of committing a crime, and his DNA information was extracted. Through Y-STR testing, the police found that the village gaos were suspected of committing crimes and entered their fingerprints one by one.

He showed panic when high fingerprints and DNA were extracted. The police soon found that his fingerprints were highly consistent with those at the murder scene and arrested him. After trial, the criminal suspect Gao confessed to the fact that he committed rape and murder 1 1 from May 65438 to February 2002.

According to police investigation, Gao lost his mother since childhood and was raised by his father. His twin brother fell into the river and died. Gao ran to the place where his brother was killed many times and burst into tears. In the eyes of relatives, Gao is "soft" and doesn't like to talk. His grades in school are average, but he is very filial to his parents when he was a child.

Gao's father was paralyzed for several years before he died. He stands at the front of the bed to urinate and scrubs his whole body every day. After his father died, he often disappeared for no reason. His wife was so hungry during confinement that she had to turn to her cousin separated by a wall and barely ordered steamed bread to fill her stomach.

High practice has no clear purpose, it is completely random and has abnormal personality. The target he chooses is what he thinks is young and beautiful. Regarding the motive of committing the crime, Gao only answered the word "revenge" and refused to answer such questions.

On April 24th, 20 17, Baiyin City Procuratorate prosecuted the defendant Gao according to law. From July 65438 to July 20, 20654381July 7 19, the case was heard in the Baiyin District Court of Baiyin City in private.

The public prosecutor accused that from May 65438 to February 2002, the defendant Gao committed crimes such as intentional homicide, rape, robbery and insulting corpses in Baiyin City, Gansu Province and Baotou City, Inner Mongolia Autonomous Region for the purpose of seeking money, raping women and satisfying abnormal psychology, resulting in the murder of 1 1 women.

2065438+On March 30th, 2008, Gansu Baiyin Intermediate People's Court handed down a first-instance verdict on "Silver Serial Murder". The defendant was convicted of intentional homicide, rape, robbery and insulting the body, and was sentenced to death. 2019,6543813 October, with the approval of the Supreme People's Court, the criminal was executed.

It is reported that the Y-STR method used in the detection of silver serial killings provides a reference for many cases. Y-STR method is a DNA detection method of sperm in forensic medicine. My uncle's DNA was entered into the database because of bribery. The police compared it with the traces left by the murder scene in that year, and finally found that the members of the Gaos were highly consistent.

The leap of investigation technology finally brought this murderous maniac who killed 1 1 lives to justice. With the progress of society, the application of high technology in investigation and evidence collection has greatly improved the investigation ability of public security organs. However, in addition to the power of technical contribution, the unremitting efforts of case handlers for many years cannot be ignored. Here, we also want to praise the police.