The method of justice through human lynching has existed since ancient times. We now live in a civil society. Justice comes through the court and if mob choose to give justice, the procedure is very unfair because the victim is given no chance to prove innocence. Why do people take law into their hands and persecute. It is believed lynching occurs when bad times over-shadow good times and frustrations run high. Overt violence against the weak minority by the mob gives some measure of relief to the perpetuator. Those who enact such barbaric acts were once children. Children manifest the racial attitude of the parents, teachers and peers. This is topped up by their own experience with the minority group. The less prejudiced the adults the better it for the children to maintain some extent of neutrality and restraint right from school days. They do not react with aggression on such issues like the superiority of races. Lynching is execution of mob on racially weaker section of society without judicial system. The end result of lynching could be beheading, hanging or death by beating. It is mostly the attack by superior class on the under-privileged class. These vigilante group act like criminals even though they are law abiding in other spheres of life. In USA lynching prejudice was at its peak in 1892. During World War II Nazis officially carried out such execution against Jews killing six million of them; the next generation carried stereotype image of this race and discriminated against them. The whole concept is understood well in terms of historical perspective. The mob which is an unruly crowd is together for a short term goal. Once the execution is completed all disperse in their own spheres of life. Crowd behaviour is crude with a sadist outlook. There are many international organizations which mediate to prevent such holocaust.