Why did Yang Xinhai kill people?

Yang Xinhai lost confidence in life, and her lover betrayed her, so she changed her mind and committed crimes crazily.

Yang Xinhai was full of hope for life, but the reality hit him again and again. After the first successful theft, Yang Xinhai felt a kind of unearned pleasure.

199 1 year, Yang Xinhai was reeducation through labor for another year by Shijiazhuang Chang 'an Public Security Bureau for pickpocketing. Before this reeducation through labor, my girlfriend in my hometown told Yang Xinhai to wait for him to come back. In the days when he lost his freedom, Yang Xinhai always comforted himself with his lover's waiting.

But a year later, when Yang Xinhai returned to her hometown with great expectation and found the girl, it happened to be her wedding day. Yang Xinhai ran away from home again and never came back, completely losing confidence in life, so Yang Xinhai had the psychology of revenge on society. From September 2000 to August 2003, Yang Xinhai committed 26 crazy crimes, killing 67 people, injuring 10 people and raping 23 people.