Recent terror acts took place in cities like Sydney, Australia; New York, U.S.A.; Ottawa, Canada; Oslo, Norway, Copenhagen, Denmark and more. These events were carried out by individuals who acted alone, the so called “lone wolf”. The motivations of these loners vary. For some, their relationship with society provided the backdrop for violence. Many of them were left behind and became the “black sheep” of society. Urban terrorism and especially lone actor terrorism has become an important phenomena and a significant threat to urban society worldwide. This behavior of some of the terrorists is rooted in their low quality of life and in their inability to integrate into society. This paper first discusses the roots of loneliness of individuals in modern urban areas and then examines the approach of “new urbanism” as a possible solution to address this phenomenon.