Michael G. Vaughn, Christine Litschge, Matt DeLisi, Kevin M. Beaver, Curtis J. McMillen Children and Youth Services Review http://www.sciencedirect.com/science/article/pii/S019074090800042X 2008 Date Thu, 06/19/2014 - 02:09 PM Research Types Adolescence Criminal Behavior Foster Care Kevin M. Beaver Psychopathy