This brief summarizes the existing body of knowledge about the links between mental illness and violence, recommends improved methods to deal with potentially violent individuals with mental illness, and identifies pressing implementation and research needs. In public perception and media reports, mental illness and violence - particularly gun violence - are unquestionably linked. However, empirical research presents a more nuanced and complex view of this relationship. Taking into account differences between youth and adults, as well as gender and racial difference, this innovative volume will be useful to policy-makers, legislators, researchers and students interested in addressing the growing public concern about mentally ill individuals at risk for violence.