Practitioners in the animal welfare field, law enforcement circles, and social services arena have often maintained that childhood cruelty to animals is a forerunner to violence against people. Does this behavior serve as a red flag with respect to extremely violent offenders, such as serial killers? Is it part of the cycle of violence associated with domestic abuse? Perez and Heide provide the first scientific examination of this relationship and examine issues of cruelty across different types of animals (pet, wild, stray, farm). The authors evaluate both qualitative and quantitative data...