From Sandy Hook, Connecticut, to Aurora, Colorado, to Tucson, Arizona, this nation has been racked from coast to coast with mass shootings perpetrated by criminals with sick minds. Authors Dr. Liebert and Dr. Birnes believe the increase in violence is an epidemic and dig deep into the causes of mental illness to determine what exactly is going on with these individuals and society as a whole, and what action can be taken to slow this frightening trend toward mass violence.