This dissertation studies different social aspects of terrorists and terrorist organizations in an effort to better deal with terrorism, especially in the long run. The researcher, who also worked as a Police Captain at Turkish National Police Anti-Terrorism Department, seeks solutions to today's global problem by studying both literature and a Delphi examination of a survey of 1070 imprisoned terrorists. The research questions include questions such as "What are the reasons behind terrorism?", "Why does terrorism occur?", "What ideologies provide the framework for terrorist violence?, "Why do some individuals become terrorists and others do not?" and "Under what conditions will terrorists end their violence?" The results of the study presents the complexity of the terrorism problem as a social experience and impossibility of a single solution or remedy for the global problem of terrorism. The researcher through his examination of the findings of the data, presented that terrorism is a social phenomenon with criminal consequences that needs to be dealt by means of two dimensional approaches. The first is the social dimension of terrorism and the second is the criminal dimension of terrorism. Based on this, the researcher constructed a conceptual model which addresses both of these dimensions under the …