 The term expresses the perceived senselessness of the occurred acts of violence; the perpetrator and the victim do not know each other, the violence seems not to be motivated by greed or other common factors.The violence occurs suddenly and often under the influence of alcohol.The term "senseless violence", in the meaning used in this article, was first used in 1997 by Cees Bangma, district chief of the Dutch police unit Midden-Friesland.