The suspect in Jiangxi 4 homicide case is a girl of 16 years old. What made this teenage girl wield a knife and hurt people?

Unexpectedly, the female suspect in the death penalty case in Jiangxi turned out to be just a girl of 16 years old. Why is she so angry, or a girl of 16 years old? What makes teenage girls wield knives and hurt people? The cause of the incident was a neighborhood dispute. The youngest sons of the two suspects were suspected of being bullied by the children of the victim's family and went to the door to argue. As a result, the two sides quarreled. After a quarrel, the two suspects went home with kitchen knives and firewood knives and came to the victim's home again to argue. The second conflict directly caused serious injuries to the victims' families. The four victims were an old man (in his eighties), a middle-aged woman and two children. The relationship between four people is father-in-law and mother and son. The victims Long, Xiao Mouying and Mou Ting were seriously injured and died after being rescued. The problem of children fighting really shouldn't escalate into a contradiction between parents. Now you have to take responsibility for killing yourself and your daughter. Both families are separated. This kind of girl is the devil in my eyes. Not only was your brother injured, but other children were also beaten by your brother. Defending your mistakes is not such a protector.