After the "4.20" mega-explosion attack on police, the leaders of the autonomous region attached great importance to it. Yinchuan City Public Security Bureau set up a "4.20" task force headed by Director Zhang, and dispatched hundreds of elite police officers to the new city to carry out a comprehensive investigation. Minister Jia of the Ministry of Public Security instructed the relevant business bureaus of the Ministry of Public Security to fully support Ningxia's case-solving work, and sent an expert group composed of laboratory experts, portrait experts, explosive ordnance disposal experts and footprint experts to the bank to guide the work.
According to repeated investigations and a large number of on-site investigations, the task force judged that this was done by a gang of more than three people, and the perpetrators were between the ages of 20 and 35. The informant spoke Mandarin with a slight Yin Nan accent.
At the same time, the task force announced the simulated portrait of one of the criminals to the public through the news media, offering a reward of 1 to 1 10,000 yuan to collect clues about the case. The general public also actively identified portraits and criminal evidence, listened to criminals' lies and telephone recordings of alarm, and collected nearly 200 clues in a short time. The task force is divided into eight task forces, working day and night according to their respective division of labor, and spreading the net layout.
Just before the "4.20" case in Yinchuan, a robbery of explosives and detonators occurred in the early morning of March 3 1 in lingwu city: a group of people robbed more than 900 explosives 126 kilograms and detonators with knives in Lingxin Mine. Combined with the "4.20" explosion case of assaulting a police officer, after in-depth investigation, criminal gangs with unemployed people Lu Wenlin, Guo and Zhang who have been active in lingwu city for a long time have been brought into the sight of public security organs. On April 9, lingwu city police found out the gang's foothold in the new urban area of Yinchuan-a rental house near the Second Team, and found out the related person Yang Jie.
After listening to the recording, Li Tonglai, a policeman from lingwu city Public Security Bureau, confirmed that the "alarm person" was Lu Wenlin, an unemployed person in Ciyaobao Town, lingwu city. The police of the task force searched the rented house of Lu Wenlin and others near the Second Team * * *, and found that there were ammonium antimony explosives in the indoor ground dust. At 22: 40 on March 30, they found a receipt from Yinchuan to Lingwu Ginko Highway Toll Station, thus confirming that Lu Wenlin and others were suspected of robbing explosives and exploding and assaulting police officers.
On May 18, after finding out the possible direction of the suspect's escape, the police of the task force decided to deploy police forces to form six pursuit teams and immediately set off for northeast China, Beijing, Henan, Guangdong, Inner Mongolia, Shaanxi and other places to carry out investigation and pursuit.
Chased the killer for thousands of miles.
On the morning of May 2 1 Sunday 1 45, Zhong Bing, the leader of the hunting group, suddenly met two people in a market in Jinguyuan Road, Luoyang, Henan Province. Both of them wore glasses and dressed up in disguise. Zhong Bing, who has been engaged in criminal investigation for many years, has been closely following the two men. After the pursuit team and six policemen from Luoyang police arrived, the policemen of the two places attacked each other and arrested Yang Jie and Xie. At the same time, with the assistance of Beijing Public Security Bureau, Zhang, another suspect in the 4.20 case, was also arrested in Beijing.
Yang Jie (33 years old), Xie (27 years old), Lu Wenlin (27 years old), Guo (2 1 year old) and Zhang (19 years old), all unemployed people in Yinchuan and lingwu city, were attacked and dealt with by the public security organs in China to varying degrees. According to the trial, since last year, serious violent criminal gangs headed by Yang Jie and Xie have robbed gas stations and roadside shops in Yinchuan, Pingluo and Lingwu, causing at least one death.
On one occasion, when Xie was drinking, he said, "It's boring to make small noises. If you want to do it, you will be big. " In order to realize this dream of "getting rich", they planned to rob the bank armored car with guns and pointed the gun crime at 1 10 police.
In the early morning of April 20th, Xie, Yang Jie and Lu Wenlin carried explosives, detonators, detonating cords and other tools from coal mines, and dug holes and buried explosive devices on the original Xingan Highway in Xincheng District of Yinchuan City. Xie and Yang were waiting in ambush, and Lu Wenlin reported to 1 10 in a public telephone booth, falsely claiming that a taxi driver was stabbed while burying an explosive device. Yang Jie and Xie put a boulder in front of the buried explosives. Xie detonated the explosive when four policemen from the patrol detachment of Yinchuan Public Security Bureau reached the place where the explosive device was buried. The police car was blown up and three of the four policemen died on the spot. When he ran to the scene with two of his men and found that the policeman injured in the explosion was still breathing, Xie stabbed more than 20 times with a sharp knife. They searched the scene for guns with flashlights, but they couldn't find them.
After the incident, the public security organs made a simulated portrait of Lu Wen Lin who lied to the police and was wanted publicly according to the description of the caller by the telephone booth owner. At this time, Lingwu police are also investigating Lu Wenlin to solve the "3.3 1" case. Yang Jie and Xie estimated that Lu Wenlin had been exposed and his portrait had been made public. Xie offered to kill him. Yang Jie and Xie conspired to cheat their accomplices and Guo Congling to Yinchuan, and killed them after adding sleeping pills to drinks in the rented room. Then Yang Jun drove and buried the body in the sand dunes beside the road from Pingluo to Shitanjing. Yang, Xie and Zhang then fled separately. Yang Jie and Xie fled to Foshan penniless. 17 In May, they killed a shared man in a guest house and took away more than RMB 10 in cash. Subsequently, the two fled to Luoyang City, Henan Province, where they were prepared to wait for an opportunity to commit crimes and continue to flee. Unexpectedly, they were discovered and captured by our police.
After more than a month of careful investigation, all the suspects involved in this case have been brought to justice, which can comfort the heroic spirit of the martyrs.
More than a month after the "April 20" incident, all the suspects were arrested except for two deaths. From June 28th to 29th, Yinchuan Intermediate People's Court heard the case. The first instance found the above-mentioned criminal facts of Xie and others, sentenced Xie and Yang Jie to death, deprived of political rights for life, and fined 654.38 million yuan. Sentenced Yang Jun to death, deprived of political rights for life, and fined 8,000 yuan; Sentenced Zhang to death, deprived of political rights for life, and fined 5,000 yuan; Nine people, including Yang Hui, were sentenced to fixed-term imprisonment ranging from 4 years to 10 years respectively.
After the verdict was pronounced in the first instance, Zhang and other six people and legal guardians refused to accept the verdict and appealed. The Higher People's Court of Ningxia Hui Autonomous Region rejected the appeal and upheld the original judgment. Xie and other four people were executed in Yinchuan on July 20, 1999 after the verdict was pronounced.