catherine gallagher, the director of the cochran collaboration college for policy at george mason university where she is the associate professor of criminology and law in society. her research focuses on improving the intersection between health care and justice systems to better address the needs of at-risk populations and public health in larger commitments. she also provides guidance to numerous federal agencies, she holds a ph.d. in behavioral and social science from the university of maryland. then we'll hear from dr. jorja leap, an adjunct associate professor of social welfare at ucla. she has worked nationally and internationally in violence, in violence postwar settings with major focus on gangs and youth violence. she currently serves as senior policy adviser on gangs and youth violence for the los angeles county sheriff, lee baca, who is a strong supporter of the youth promise act, and she works in partnership with california wellness foundation, the california endowment and the advancement project. she is author of a new book, "jumped in: what gangs taught me about violence, drug