1. Emotional entanglement and murder:
Motivation is emotional entanglements, including but not limited to love entanglements, but also emotional entanglements such as family friendship. There are strong psychological contradictions in motivation, many emotional factors in behavior and strong emotional demands.
2. Revenge killing:
Motivation is revenge for previous attacks, or revenge after purposeful behavior is frustrated. The target may be frustrated individuals or groups represented by individuals. This kind of motive often appears in homicide and injury cases.
3. Killing without purpose:
Motivation is the vent of emotions, but because the goals are often generalized and the choice of goals is basically random, there are single behavioral goals and group behavioral goals, which can also be called "indiscriminate killing".
4. Killing with passion:
Motivation is the behavior of emotional out of control caused by stressful environmental changes. I have to say that this kind of violence actually accounts for a relatively large proportion in the whole serious violence cases, and many of them are hysterical because of impulsive crimes or stress. This kind of killing behavior is characterized by sudden behavior and short decision-making process, and the actor may not believe what he has done after the behavior, which has a lot to do with the environmental stimulus at the time of the behavior and is unplanned.
5. pleasure killing:
Motivation is the desire for psychological pleasure. There are very few criminals who have this motive to kill, and they may belong to abnormal criminals. Their characteristics are obvious personal characteristics, mostly with philosophical or artistic factors, and their behaviors are cruel.