At 10 in September 29, 2017, Zhang was in his girlfriends house in Tongzhou District, Beijing, to open natural gas valves for emotional problems and to commit suicide by WeChat, causing natural gas leakage and explosion risk, causing panic around the masses. On the same day, 13 minutes later, Zhang was taken out of the room by the police, and was summoned to the Tongzhou branch law enforcement case center on the same day by the Yuqiao police station in Tongzhou branch for examination. This case was heard in the court of Tongzhou in March 5th this year. In the court, Zhang pleaded guilty. Zhang said he wanted to use this method to allow his family to agree to marriage. He did not consider anything else. He said his behavior was an emotional crime. According to Zhangs statement, he is a person in Guizhou province. His girlfriend is a person in Tangshan City. The difference between the two people is 11 years old. In April 2016, the two people met in Tibet tourism. After that, they talked further through the WeChat chat, and decided the relationship in 2017. Before the incident, Zhang once took his girlfriend to his family in Guizhou to discuss marriage with his family, but he did not expect strong opposition from his parents. I saw my girlfriends parents before they agreed to our marriage, but my parents not only disagreed, they called their parents, sent text messages, and said a lot of difficult words. Before the incident, Zhang quit his job in his hometown, followed his girlfriend to Beijing and stayed at his girlfriends home. In September 2017, her girlfriend offered to break up. I think my girlfriend said breaking up was caused by parental disagreement, so I wanted to force my parents to agree to our marriage. Zhang said, on the day of the incident, he wrote a copy at home, saying that his parents were forced to commit suicide because they did not agree, which was forced by his parents. Then he opened the natural gas of his girlfriends kitchen and made a video. He sent it to a friends circle with his remains. He wanted to let the family know the situation and then he returned to the bedroom and lay down. I didnt really want to commit suicide. I was very excited at that time, and I took this way, without thinking of anything else. The court held that Zhang disregarded the law and released natural gas in the residential buildings, endangering public safety. The act had constituted a crime of endangering the security of public security in a dangerous way, and should be punished according to law. When Zhang came to the court, he truthfully confessed his crime and could be given a lighter punishment in accordance with the law.